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Section 1 - Recognition, Diagnosis, and Impact of Nonepileptic Seizures

Published online by Cambridge University Press:  18 May 2018

Edited by
W. Curt LaFrance, Jr  and
Steven C. Schachter
W. Curt LaFrance, Jr
Affiliation:
Brown Medical School, Providence
Steven C. Schachter
Affiliation:
Beth Israel Deaconess Medical Center, Boston
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Gates and Rowan's Nonepileptic Seizures , pp. 1 - 136
Publisher: Cambridge University Press
Print publication year: 2018

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References

References

Szaflarski, JP, Hughes, C, Szaflarski, M, et al. Quality of life in psychogenic nonepileptic seizures. Epilepsia 2003;44:236–242.CrossRefGoogle ScholarPubMed
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 5th edn. (DSM-5). Washington, DC: American Psychiatric Association, 2013.Google Scholar
King, DW, Gallagher, BB, Murvin, AJ, et al. Pseudoseizures: diagnostic evaluation. Neurology 1982;32:18–23.CrossRefGoogle ScholarPubMed
Mace, CJ, Trimble, MR. ‘Hysteria’, ‘functional’ or ‘psychogenic’? A survey of British neurologists’ preferences. J R Soc Med 1991;84:471–475.Google Scholar
Scull, DA. Pseudoseizures or non-epileptic seizures (NES); 15 synonyms. J Neurol Neurosurg Psychiatry 1997;62:200.Google Scholar
Szaflarski, JP, Ficker, DM, Cahill, WT, Privitera, MD. Four-year incidence of psychogenic nonepileptic seizures in adults in Hamilton County, OH. Neurology 2000;55:1561–1563.CrossRefGoogle ScholarPubMed
Vanderzant, CW, Giordani, B, Berent, S, Dreifuss, FE, Sackellares, JC. Personality of patients with pseudoseizures. Neurology 1986;36:664–668.Google Scholar
Benbadis, SR, Agrawal, V, Tatum, WO 4th. How many patients with psychogenic nonepileptic seizures also have epilepsy? Neurology 2001;57:915–917.CrossRefGoogle Scholar
Ferguson, PL, Chiprich, J, Smith, G, et al. Prevalence of self-reported epilepsy, health care access, and health behaviors among adults in South Carolina. Epilepsy Behav 2008;13:529–534.Google Scholar
Kobau, R, Luo, Y-H, Zack, M, Helmers, SL, Thurman, DJ. Epilepsy in adults and access to care. MMWR Surveill Summ 2012;61:909–913.Google Scholar
Reuber, M, Fernandez, G, Bauer, J, Helmstaedter, C, Elger, CE. Diagnostic delay in psychogenic nonepileptic seizures. Neurology 2002;58:493–495.Google Scholar
Duncan, R, Razvi, S, Mulhern, S. Newly presenting psychogenic nonepileptic seizures: incidence, population characteristics, and early outcome from a prospective audit of a first seizure clinic. Epilepsy Behav 2011;20:308–311.CrossRefGoogle ScholarPubMed
Harden, CL, Burgut, FT, Kanner, AM. The diagnostic significance of video-EEG monitoring findings on pseudoseizure patients differs between neurologists and psychiatrists. Epilepsia 2003;44:453–456.CrossRefGoogle ScholarPubMed
Dworetzky, BA, Bubrick, EJ, Szaflarski, JP. Nonepileptic psychogenic status: markedly prolonged psychogenic nonepileptic seizures. Epilepsy Behav 2010;19:65–68.CrossRefGoogle ScholarPubMed
Szaflarski, JP, Aurora, K, Rawal, P, et al. Personalities of patients with nonepileptic psychogenic status. Epilepsy Behav 2015;52:143–148.Google Scholar
Sigurdardottir, KR, Olafsson, E. Incidence of psychogenic seizures in adults: a population-based study in Iceland. Epilepsia 1998;39:749–752.Google Scholar
Meierkord, H, Will, B, Fish, D, Shorvon, S. The clinical features and prognosis of pseudoseizures diagnosed using video-EEG telemetry. Neurology 1991;41:1643–1646.CrossRefGoogle ScholarPubMed
Hauser, WA, Annegers, JF, Kurland, LT. Incidence of epilepsy and unprovoked seizures in Rochester, Minnesota: 1935–1984. Epilepsia 1993;34:453–468.Google Scholar
Kotsopoulos, I, de Krom, M, Kessels, F, et al. Incidence of epilepsy and predictive factors of epileptic and non-epileptic seizures. Seizure 2005;14:175–182.CrossRefGoogle ScholarPubMed
Sirven, JI, Glosser, DS. Psychogenic nonepileptic seizures: theoretic and clinical considerations. Neuropsychiatry Neuropsychol Behav Neurol 1998;11:225–235.Google ScholarPubMed
Benbadis, SR, Hauser, AW. An estimate of the prevalence of psychogenic non-epileptic seizures. Seizure 2000;9:280–281.Google Scholar
Szaflarski, JP, Szaflarski, M. Seizure disorders, depression, and health-related quality of life. Epilepsy Behav 2004;5:50–57.CrossRefGoogle ScholarPubMed
Martin, RC, Gilliam, FG, Kilgore, M, Faught, E, Kuzniecky, R. Improved health care resource utilization following video-EEG-confirmed diagnosis of nonepileptic psychogenic seizures. Seizure 1998;7:385–390.Google Scholar
Reuber, M, Pukrop, R, Mitchell, AJ, Bauer, J, Elger, CE. Clinical significance of recurrent psychogenic nonepileptic seizure status. J Neurol 2003;250:1355–1362.Google Scholar
Asadi-Pooya, AA, Emami, Y, Emami, M, Sperling, MR. Prolonged psychogenic nonepileptic seizures or pseudostatus. Epilepsy Behav 2014;31:304–306.Google Scholar
Dworetzky, BA, Mortati, KA, Rossetti, AO, et al. Clinical characteristics of psychogenic nonepileptic seizure status in the long-term monitoring unit. Epilepsy Behav 2006;9:335–338.Google Scholar
Sutula, TP, Sackellares, JC, Miller, JQ, Dreifuss, FE. Intensive monitoring in refractory epilepsy. Neurology 1981;31:243–247.Google Scholar
Asadi-Pooya, AA, Emami, Y, Emami, M. Psychogenic non-epileptic seizures in Iran. Seizure 2014;23:175–177.CrossRefGoogle ScholarPubMed
Berkman, L, Kawachi, I. A historical framework for social epidemiology. In: Berkman, L, Kawachi, I, eds. Social Epidemiology. New York: Oxford University Press, 2000.CrossRefGoogle Scholar
Schmitz, B. Psychogenic nonepileptic seizures: Why women? In: Schachter, SC, LaFrance, WC, eds. Gates and Rowan's Nonepileptic Seizures, 3rd edn. New York: Cambridge University Press, 2010;131–135.Google Scholar
Duncan, R, Oto, M, Martin, E, Pelosi, A. Late onset psychogenic nonepileptic attacks. Neurology 2006;66:1644–1647.Google Scholar
Kessler, RC, Berglund, P, Demler, O, et al. Lifetime prevalence and age-of-onset distributions of DSM-IV disorders in the National Comorbidity Survey Replication. Arch Gen Psychiatry 2005;62:593–602.Google Scholar
Driver-Dunckley, E, Stonnington, CM, Locke, DE, Noe, K. Comparison of psychogenic movement disorders and psychogenic nonepileptic seizures: is phenotype clinically important? Psychosomatics 2011;52:337–345.Google Scholar
Myers, L, Lancman, M, Laban-Grant, O, Matzner, B, Lancman, M. Psychogenic non-epileptic seizures: predisposing factors to diminished quality of life. Epilepsy Behav 2012;25:358–362.Google Scholar
Syme, S. Foreword. In: Berkman, L, Kawachi, I, eds. Social Epidemiology. New York: Oxford University Press, 2000.Google Scholar
LaFrance, WC. Psychogenic nonepileptic seizures. Curr Opin Neurol 2008;21:195–201.CrossRefGoogle ScholarPubMed
Griffith, NM, Szaflarski, JP, Schefft, BK, et al. Relationship between semiology of psychogenic nonepileptic seizures and Minnesota Multiphasic Personality Inventory profile. Epilepsy Behav 2007;11:105–111.Google Scholar
Selwa, LM, Geyer, J, Nikakhtar, N, et al. Nonepileptic seizure outcome varies by type of spell and duration of illness. Epilepsia 2000;41:1330–1334.Google Scholar
Gates, J. Epidemiology and classification of non-epileptic seizures. In: Gates, J, Rowan, A, eds. Non-Epileptic Seizures, 2nd edn. Boston: Butterworth-Heinemann, 2000;3–15.Google Scholar
Cragar, DE, Berry, DT, Schmitt, FA, Fakhoury, TA. Cluster analysis of normal personality traits in patients with psychogenic nonepileptic seizures. Epilepsy Behav 2005;6:593–600.Google Scholar
Reuber, M, Pukrop, R, Bauer, J, et al. Outcome in psychogenic nonepileptic seizures: 1 to 10-year follow-up in 164 patients. Ann Neurol 2003;53:305–311.CrossRefGoogle ScholarPubMed
LaFrance, WC, Plioplys, S. Neuropsychiatric disorders: does semiology of psychogenic nonepileptic seizures matter? Nat Rev Neurol 2012;8:302–303.Google Scholar
Trimble, MR. Pseudoseizures. Neurol Clin 1986;4:531–548.Google Scholar
Kretschmer, E. Hysteria. New York: Nervous and Mental Disease Publ. Co., 1926.Google Scholar
Blumer, D, Adamolekun, B. Treatment of patients with coexisting epileptic and nonepileptic seizures. Epilepsy Behav 2006;9:498–502.Google Scholar
Reuber, M, Pukrop, R, Bauer, J, Derfuss, R, Elger, CE. Multidimensional assessment of personality in patients with psychogenic non-epileptic seizures. J Neurol Neurosurg Psychiatry 2004;75:743–748.Google Scholar
Wilkus, RJ, Dodrill, CB. Factors affecting the outcome of MMPI and neuropsychological assessments of psychogenic and epileptic seizure patients. Epilepsia 1989;30:339–347.CrossRefGoogle ScholarPubMed
Gulick, TA, Spinks, IP, King, DW. Pseudoseizures: ictal phenomena. Neurology 1982;32:24–30.CrossRefGoogle ScholarPubMed
Henry, TR, Drury, I. Ictal behaviors during nonepileptic seizures differ in patients with temporal lobe interictal epileptiform EEG activity and patients without interictal epileptiform EEG abnormalities. Epilepsia 1998;39:175–182.CrossRefGoogle ScholarPubMed
Flugel, D, Bauer, J, Kaseborn, U, Burr, W, Elger, C. Closed eyes during a seizure indicate psychogenic etiology: a study with suggestive seizure provocation. J Epilepsy 1996;9:165–169.Google Scholar
Gumnit, RJ, Gates, JR. Psychogenic seizures. Epilepsia 1986;27(Suppl 2):S124–129.CrossRefGoogle ScholarPubMed
van Merode, T, de Krom, MC, Knottnerus, JA. Gender-related differences in non-epileptic attacks: a study of patients' cases in the literature. Seizure 1997;6:311–316.Google Scholar
Groppel, G, Kapitany, T, Baumgartner, C. Cluster analysis of clinical seizure semiology of psychogenic nonepileptic seizures. Epilepsia 2000;41:610–614.Google Scholar
Dworetzky, BA, Strahonja-Packard, A, Shanahan, CW, et al. Characteristics of male veterans with psychogenic nonepileptic seizures. Epilepsia 2005;46:1418–1422.CrossRefGoogle ScholarPubMed
Kanner, AM, Morris, HH, Luders, H, et al. Supplementary motor seizures mimicking pseudoseizures: some clinical differences. Neurology 1990;40:1404–1407.CrossRefGoogle ScholarPubMed
Saygi, S, Katz, A, Marks, DA, Spencer, SS. Frontal lobe partial seizures and psychogenic seizures: comparison of clinical and ictal characteristics. Neurology 1992;42:1274–1277.CrossRefGoogle ScholarPubMed
Hubsch, C, Baumann, C, Hingray, C, et al. Clinical classification of psychogenic non-epileptic seizures based on video-EEG analysis and automatic clustering. J Neurol Neurosurg Psychiatry 2011;82:955–960.CrossRefGoogle ScholarPubMed
Seneviratne, U, Reutens, D, D'Souza, W. Stereotypy of psychogenic nonepileptic seizures: insights from video-EEG monitoring. Epilepsia 2010;51:1159–1168.CrossRefGoogle ScholarPubMed
Cragar, D, Berry, D, Fakhoury, T, Cibula, J, Schmitt, F. A review of diagnostic techniques in the differential diagnosis of epileptic and nonepileptic seizures. Neuropsychol Rev 2002;12:31–64.CrossRefGoogle ScholarPubMed
Dodrill, C, Wilkus, R, Batzel, L. The MMPI as a diagnostic tool in non-epileptic seizures. In: Gates, J, Rowan, A, eds. Non-Epileptic Seizures. Boston: Butterworth-Heinemann, 1993:211–220.Google Scholar
Gale, SD, Hill, SW. Concurrent administration of the MMPI-2 and PAI in a sample of patients with epileptic or non-epileptic seizures: implications for an inpatient epilepsy monitoring unit. Epilepsy Behav 2012;25:181–184.CrossRefGoogle ScholarPubMed
King, TZ, Fennell, EB, Bauer, R, et al. MMPI-2 profiles of patients with intractable epilepsy. Arch Clin Neuropsychol 2002;17:583–593.Google Scholar
Kalogjera-Sackellares, D, Sackellares, JC. Personality profiles of patients with pseudoseizures. Seizure 1997;6:1–7.CrossRefGoogle ScholarPubMed
Kuyk, J, Swinkels, WA, Spinhoven, P. Psychopathologies in patients with nonepileptic seizures with and without comorbid epilepsy: how different are they? Epilepsy Behav 2003;4:13–18.CrossRefGoogle Scholar
Reuber, M, Howlett, S, Kemp, S. Psychologic treatment of patients with psychogenic nonepileptic seizures. Expert Rev Neurother 2005;5:737–752.Google Scholar
Barrash, J, Gates, J, Heck, D, Benial, T. MMPI subtypes among patients with nonepileptic events. In: Annual Meeting of the American Epilepsy Society; Boston: Raven Press, Ltd., 1989;730–731.Google Scholar
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 4th edn. Text Revision (DSM-IV-TR). Washington, DC: American Psychiatric Association, 2000.Google Scholar
Reuber, M. Psychogenic nonepileptic seizures: answers and questions. Epilepsy Behav 2008;12:622–635.Google Scholar
Livesley, WJ, Jackson, DN, Schroeder, ML. Factorial structure of traits delineating personality disorders in clinical and general population samples. J Abnorm Psychol 1992;101:432–440.CrossRefGoogle ScholarPubMed
Chang, E, ed. Optimism and Pessimism: Implications for Theory, Research, and Practice. Washington, DC: American Psychological Association, 2002.Google Scholar
Gillham, J, ed. The Science of Optimism and Hope: Research Essays in Honor of Martin E. P. Seligman. Philadelphia: Templeton Foundation Press, 2000.Google Scholar
Costa, P, McCrae, R. NEO-PI-R Professional Manual. Odessa, FL: Psychological Assessment Resources, Inc., 1992.Google Scholar
Wagner, MT, Wymer, JH, Topping, KB, Pritchard, PB. Use of the Personality Assessment Inventory as an efficacious and cost-effective diagnostic tool for nonepileptic seizures. Epilepsy Behav 2005;7:301–304.Google Scholar
Testa, SM, Lesser, RP, Krauss, GL, Brandt, J. Personality Assessment Inventory among patients with psychogenic seizures and those with epilepsy. Epilepsia 2011;52:e84–88.Google Scholar
Thompson, AW, Hantke, N, Phatak, V, Chaytor, N. The Personality Assessment Inventory as a tool for diagnosing psychogenic nonepileptic seizures. Epilepsia 2010;51:161–164.Google Scholar
Alsaadi, TM, Marquez, AV. Psychogenic nonepileptic seizures. Am Fam Physician 2005;72:849–856.Google ScholarPubMed
Lesser, RP. Treatment and outcome of psychogenic nonepileptic seizures. Epilepsy Curr 2003;3:198–200.Google Scholar
Ford, C. Somatization and non-epileptic seizures. In: Rowan, A, Gates, J, eds. Non-Epileptic Seizures. Boston: Butterworth-Heinemann, 1993:153–164.Google Scholar
Bowman, ES. Etiology and clinical course of pseudoseizures. Relationship to trauma, depression, and dissociation. Psychosomatics 1993;34:333–342.Google Scholar
Bowman, ES, Markand, ON. Psychodynamics and psychiatric diagnoses of pseudoseizure subjects. Am J Psychiatry 1996;153:57–63.Google Scholar
Rusch, MD, Morris, GL, Allen, L, Lathrop, L. Psychological treatment of nonepileptic events. Epilepsy Behav 2001;2:277–283.Google Scholar
LaFrance, WC, Devinsky, O. Treatment of nonepileptic seizures. Epilepsy Behav 2002;3:19–23.CrossRefGoogle ScholarPubMed
LaFrance, WC, Baker, GA, Duncan, R, Goldstein, LH, Reuber, M. Minimum requirements for the diagnosis of psychogenic nonepileptic seizures: a staged approach: a report from the International League Against Epilepsy Nonepileptic Seizures Task Force. Epilepsia 2013;54:2005–2018.Google Scholar
Zivin, L, Marsan, CA. Incidence and prognostic significance of “epileptiform” activity in the EEG of non-epileptic subjects. Brain 1968;91:751–778.Google Scholar
Lin, JT, Ziegler, DK, Lai, CW, Bayer, W. Convulsive syncope in blood donors. Ann Neurol 1982;11:525–528.CrossRefGoogle ScholarPubMed
Aminoff, MJ, Scheinman, MM, Griffin, JC, Herre, JM. Electrocerebral accompaniments of syncope associated with malignant ventricular arrhythmias. Ann Intern Med 1988;108:791–796.Google Scholar
Kleindorfer, D, Panagos, P, Pancioli, A, et al. Incidence and short-term prognosis of transient ischemic attack in a population-based study. Stroke 2005;36:720–723.CrossRefGoogle ScholarPubMed
Stewart, WF, Linet, MS, Celentano, DD, Van Natta, M, Ziegler, D. Age- and sex-specific incidence rates of migraine with and without visual aura. Am J Epidemiol 1991;134:1111–1120.Google Scholar
Brown, RJ, Cardena, E, Nijenhuis, E, Sar, V, van der Hart, O. Should conversion disorder be reclassified as a dissociative disorder in DSM V? Psychosomatics 2007;48:369–378.CrossRefGoogle ScholarPubMed
Brown, RJ, Trimble, MR. Dissociative psychopathology, non-epileptic seizures, and neurology. J Neurol Neurosurg Psychiatry 2000;69:285–289.CrossRefGoogle ScholarPubMed
Reuber, M, House, AO. Treating patients with psychogenic non-epileptic seizures. Curr Opin Neurol 2002;15:207–211.Google Scholar
Reuber, M, Elger, CE. Psychogenic nonepileptic seizures: review and update. Epilepsy Behav 2003;4:205–216.Google Scholar
Reuber, M, Howlett, S, Khan, A, Grunewald, RA. Non-epileptic seizures and other functional neurological symptoms: predisposing, precipitating, and perpetuating factors. Psychosomatics 2007;48:230–238.CrossRefGoogle ScholarPubMed
Torem, M. Non-Epileptic seizures as a dissocative disorder. In: Rowan, A, Gates, J, eds. Non-Epileptic Seizures. Boston: Butterworth-Heinemann, 1993;173–179.Google Scholar
Prueter, C, Schultz-Venrath, U, Rimpau, W. Dissociative and associated psychopathological symptoms in patients with epilepsy, pseudoseizures, and both seizure forms. Epilepsia 2002;43:188–192.Google Scholar
van Merode, T, Twellaar, M, Kotsopoulos, IA, et al. Psychological characteristics of patients with newly developed psychogenic seizures. J Neurol Neurosurg Psychiatry 2004;75:1175–1177.Google Scholar
Fleisher, W, Staley, D, Krawetz, P, et al. Comparative study of trauma-related phenomena in subjects with pseudoseizures and subjects with epilepsy. Am J Psychiatry 2002;159:660–663.Google Scholar
Kuyk, J, Van Dyck, R, Spinhoven, P. The case for a dissociative interpretation of pseudoepileptic seizures. J Nerv Ment Dis 1996;184:468–474.Google Scholar
Alper, K, Devinsky, O, Perrine, K, et al. Dissociation in epilepsy and conversion nonepileptic seizures. Epilepsia 1997;38:991–997.Google Scholar
Alper, K, Devinsky, O, Perrine, K, Vazquez, B, Luciano, D. Psychiatric classification of nonconversion nonepileptic seizures. Arch Neurol 1995;52:199–201.Google Scholar
Reuber, M, House, AO, Pukrop, R, Bauer, J, Elger, CE. Somatization, dissociation and general psychopathology in patients with psychogenic non-epileptic seizures. Epilepsy Res 2003;57:159–167.Google Scholar
Tojek, TM, Lumley, M, Barkley, G, Mahr, G, Thomas, A. Stress and other psychosocial characteristics of patients with psychogenic nonepileptic seizures. Psychosomatics 2000;41:221–226.Google Scholar
Harden, CL. Pseudoseizures and dissociative disorders: a common mechanism involving traumatic experiences. Seizure 1997;6:151–155.Google Scholar
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 2nd edn. (DSM-II). Washington, DC: American Psychiatric Press, 1968.Google Scholar
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 3rd edn. (DSM-III). Washington, DC: American Psychiatric Press, 1980.Google Scholar
Martin, R, Gates, J. Nosology, classification, and differential diagnosis of non-epileptic seizures: an alternative proposal. In: Gates, J, Rowan, A, eds. Non-Epileptic Seizures, 2nd edn. Boston: Butterworth-Heinemann, 2000;253–267.Google Scholar
Bowman, ES. Nonepileptic seizures: psychiatric framework, treatment, and outcome. Neurology 1999;53:S84–88.Google ScholarPubMed
Lacey, C, Cook, M, Salzberg, M. The neurologist, psychogenic nonepileptic seizures, and borderline personality disorder. Epilepsy Behav 2007;11:492–498.Google Scholar
Chabolla, DR, Krahn, LE, So, EL, Rummans, TA. Psychogenic nonepileptic seizures. Mayo Clin Proc 1996;71:493–500.CrossRefGoogle ScholarPubMed
Gates, J. Nonepileptic seizures: classification, coexistence with epilepsy, diagnosis, therapeutic approaches, and consensus. Epilepsy Behav 2002;3:28–33.Google Scholar
Fiszman, A, Alves-Leon, SV, Nunes, RG, D'Andrea, I, Figueira, I. Traumatic events and posttraumatic stress disorder in patients with psychogenic nonepileptic seizures: a critical review. Epilepsy Behav 2004;5:818–825.Google Scholar
Brewin, CR, Andrews, B, Rose, S, Kirk, M. Acute stress disorder and posttraumatic stress disorder in victims of violent crime. Am J Psychiatry 1999;156:360–366.Google Scholar
LaFrance, WC, Barry, JJ. Update on treatments of psychological nonepileptic seizures. Epilepsy Behav 2005;7:364–374.Google Scholar
Wessely, S, White, PD. There is only one functional somatic syndrome. Br J Psychiatry 2004;185:95–96.CrossRefGoogle ScholarPubMed
Schoenberg, MR, Marsh, PJ, Benbadis, SR. Where are somatoform disorders going? An update on the DSM-V. Expert Rev Neurother 2012;12:1371–1374.Google Scholar
Stone, J, LaFrance, WC, Brown, R, et al. Conversion disorder: current problems and potential solutions for DSM-5. J Psychosomatic Res 2011;71:369–376.Google Scholar
Stone, J, LaFrance, WC, Levenson, JL, Sharpe, M. Issues for DSM-5: Conversion disorder. Am J Psychiatry 2010;167:626–627.Google Scholar

References

Institoris, H, Sprenger, J, Sommers, H. Malleus Maleficarum. London: Pushkin, 1948.Google Scholar
Jorden, E. A Briefe Discourse of a Disease Called the Suffocation of the Mother. London: John Windet, 1603.Google Scholar
Dewhurst, K. Thomas Willis’ Oxford Lectures. Oxford: Sanford Publications, 1980.Google Scholar
Willis, T. An Essay of the Pathology of the Brain and Nervous Stock in which Convulsive Diseases are Treated. Transl. Pordage, S. London: Dring, Leigh and Harper, 1684.Google Scholar
Sydenham, T. The Works of Thomas Sydenham. London: Sydenham Society, 1850.Google Scholar
Burton, R. The Anatomy of Melancholy. Oxford, 1621.Google Scholar
Whyte, R. Observations on the Nature, Causes and Cure of Those Disorders Which Have Been Called Nervous, Hypochondriac, or Hysteric, to Which are Prefixed Some Remarks on the Sympathy of the Nerves. Edinburgh: Becket and Du Hodt, 1751.Google Scholar
Cheyne, G. The English Malady; or a Treatise of Nervous Diseases of All Kinds, as Spleen, Vapours, Lowness of Spirits, Hypochondriacal and Hysterical Distempers etc. London: Strahan and Leake, 1733.Google Scholar
Laycock, T. An Essay on Hysteria. Philadelphia: Barrington and Haswell, 1840.Google Scholar
Carter, RB. On the Pathology and Treatment of Hysteria. London: Churchill, 1853.Google Scholar
Veith, I. Hysteria. The History of a Disease. Chicago: University of Chicago Press, 1965.Google Scholar
Todd, RB. Clinical Lectures on Paralysis, Certain Diseases of the Brain and other Affections of the Nervous System. London, 1856.Google Scholar
Hughlings, Jackson J. In: Taylor, J, ed. Selected Writings of John Hughlings Jackson. London: Staples Press, 1958; 162–174.Google Scholar
Briquet, P. Traité Clinique et Therapeutique de l'Hystérie. Paris: J-B Bailliere et fils, 1859.Google Scholar
Hustvedt, A. Medical Muses – Hysteria in Nineteenth-Century Paris. London: WW Norton, 2011.Google Scholar
Didi-Huberman, G. Invention of Hysteria. Transl. Hartz, A. London: MIT Press, 2003.Google Scholar
Charcot, JM. Lectures on the Diseases of the Nervous System. Transl. Sigerson, G. London: New Sydenham Society, 1877.Google Scholar
Janet, P. The Mental State of Hystericals. Transl. Corson, CR. New York: GP Putnam's Sons, 1901.Google Scholar
Dewhurst, K. Hughlings Jackson on Psychiatry. Oxford: Sandford Publications, 1982.Google Scholar
Breuer, J, Freud, S. Studies on Hysteria (1893–1895). Standard Edition, 2. London: Hogarth Press, 1955.Google Scholar
Pierce-Clarke, L. A psychological interpretation of essential epilepsy. Brain, 1929;43:38–49.CrossRefGoogle Scholar
Jelliffe, SE, White, WA. Diseases of the Nervous System. London: HK Lewis, 1929.Google Scholar
Freud, S. Dostoevsky and Parracide. The Realist, 1929;1:18–33.Google Scholar
Fenichel, O. Hysterie und Zwangsneurosen. Wien, 1931.Google Scholar
Stekel, W. Der epileptische Symptom-Complex. Nervoese Angstzustaende. Wien, 1924.Google Scholar
Bratz, H, Leubuscher, H. Die Affekt-epilepsie. Eine klinische, von der echten Epilepsie abtrennbare Gruppe. Dt Med Wochenschr 1907;33:592–593.Google Scholar
Showalter, E. The Female Malady: Women, Madness and the English Culture, 1830–1980. New York: Pantheon, 1985.Google Scholar
Shorter, E. From Paralysis to Fatigue: A History of Psychosomatic Illness in the Modern Era. New York: Free Press, 1992.Google Scholar
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 4th edn. Text Revision (DSM-IV-TR). Washington, DC: American Psychiatric Association, 2000.Google Scholar
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 5th edn. Text Revision (DSM-5). Washington, DC: American Psychiatric Association, 2013.Google Scholar
Rowan, AJ, Gates, JR, eds. Non-Epileptic Seizures. Stoneham, MA: Butterworth-Heinemann, 1993: 25Google Scholar

Recommended Reading

Charcot, J-M. Clinical Lectures on Disease of the Nervous System, Vol. 3. Transl. Savill, T. London: New Sydenham Society, 1889.Google Scholar
Charcot, J-M, Marie, P. Hysteria. In: Hack, Tuke D, Dictionary of Psychological Medicine. London: Churchill, 1892.Google Scholar
Ellenberger, HF. The Discovery of the Unconscious. New York: Basic Books, 1970.Google Scholar
Griesinger, W. Mental Pathology and Therapeutics. Transl. Lockhart, Robertson C, Rutherford, J. London: New Sydenham Society, 1862.Google Scholar
Hecker, JFC. The Epidemics of the Middle Ages. Transl. Babbington, BG. London: Sydenham Society, 1844.Google Scholar
Hunter, R, MacAlpine, I. Three Hundred Years of Psychiatry. Oxford: Oxford University Press, 1963.Google Scholar
Janet, P. The Major Symptoms of Hysteria. London: Macmillan Company, 1907.Google Scholar
Merskey, H. The Analysis of Hysteria, 2nd edn. London: Gaskell, 1995.Google Scholar
Micale, MS, Approaching Hysteria. New Jersey: Princeton University Press, 1995.Google Scholar
Owen, AGR, Hysteria, Hypnosis and Healing. The Work of J-M Charcot. London: Dennis Dobson, 1972.Google Scholar
Pierce-Clarke, L. A psychological interpretation of essential epilepsy. Brain 1929;43:38–49.Google Scholar
Reynolds, JR. Remarks on paralysis and other disorders of motion and sensation, dependant on an idea. Br Med J 1869;ii:483–485.Google Scholar
Ross, TA. Lectures on War Neuroses. London: Jonathan Cape, 2000.Google Scholar
Sackellares, JC, Kalogjera-Sackellares, D. Psychology of psychogenic pseudoseizures. In: Trimble, MR, Smitz, B. eds. The Neuropsychiatry of Epilepsy. Cambridge: Cambridge University Press, 2004;210–226.Google Scholar
Shephard, B. A War of Nerves. London: Jonathan Cape, 2000.Google Scholar
Stone, M. Shellshock and psychologists. In: Bynum, WF, Porter, R, Shepherd, M, eds. The Anatomy of Madness, Vol. 2. London: Tavistock Publications, 1985;242–271.Google Scholar
Temkin, O. The Falling Sickness. Baltimore: Johns Hopkins University Press, 1951.Google Scholar
Trimble, MR. Post-Traumatic Neurosis. Chichester: J Wiley and Sons, 1981.Google Scholar

References

American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders: DSM-IV-TR, 4th edn. Text Revision (DSM-IV-TR). Washington, DC: American Psychiatric Association, 2000.Google Scholar
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 5th edn. (DSM-5). Washington, DC: American Psychiatric Association, 2013.Google Scholar
Buck, CJ. The International Classification of Diseases, 2014 ICD-10-CM Draft edition. St. Louis, MO: Saunders Elsevier, 2013.Google Scholar
United States Health Care Financing Administration. The International Classification of Diseases, 9th Revision, Clinical Modification: ICD-9-CM, 2nd edn. Washington, DC: US Dept. of Health and Human Services, Public Health Service; for sale by the Supt. of Docs., US GPO, 1980.Google Scholar
Dixit, R, Popescu, A, Bagic, A, Ghearing, G, Hendrickson, R. Medical comorbidities in patients with psychogenic nonepileptic spells (PNES) referred for video-EEG monitoring. Epilepsy Behav 2013;28:137–140.Google Scholar
Ettinger, AB, Devinsky, O, Weisbrot, DM, Goyal, A, Shashikumar, S. Headaches and other pain symptoms among patients with psychogenic non-epileptic seizures. Seizure 1999;8:424–426.Google Scholar
Yilmaz, U, Serdaroglu, A, Gurkas, E, Hirfanoglu, T, Cansu, A. Childhood paroxysmal nonepileptic events. Epilepsy Behav 2013;27:124–129.Google Scholar
Kaplan, MJ, Dwivedi, AK, Privitera, MD, et al. Comparisons of childhood trauma, alexithymia, and defensive styles in patients with psychogenic non-epileptic seizures vs. epilepsy: implications for the etiology of conversion disorder. J Psychosom Res 2013;75:142–146.Google Scholar
Hovorka, J, Nezadal, T, Herman, E, Nemcova, I, Bajacek, M. Psychogenic non-epileptic seizures, prospective clinical experience: diagnosis, clinical features, risk factors, psychiatric comorbidity, treatment outcome. Epileptic Disord 2007;9 (Suppl 1):S52–58.Google Scholar
Scevola, L, Teitelbaum, J, Oddo, S, et al. Psychiatric disorders in patients with psychogenic nonepileptic seizures and drug-resistant epilepsy: a study of an Argentine population. Epilepsy Behav 2013;29:155–160.Google Scholar
Karakis, I, Montouris, GD, Piperidou, C, et al. Patient and caregiver quality of life in psychogenic non-epileptic seizures compared to epileptic seizures. Seizure 2014;23:47–54.Google Scholar
Hoedeman, R, Blankenstein, AH, Krol, B, Koopmans, PC, Groothoff, JW. The contribution of high levels of somatic symptom severity to sickness absence duration, disability and discharge. J Occup Rehab 2010;20:264–273.Google Scholar
Silverman, S, Dukes, EM, Johnston, SS, et al. The economic burden of fibromyalgia: comparative analysis with rheumatoid arthritis. Curr Med Res Opin 2009;25:829–840.Google Scholar
Brown, RJ, Bouska, JF, Frow, A, et al. Emotional dysregulation, alexithymia, and attachment in psychogenic nonepileptic seizures. Epilepsy Behav 2013;29:178–183.Google Scholar
Bewley, J, Murphy, PN, Mallows, J, Baker, GA. Does alexithymia differentiate between patients with nonepileptic seizures, patients with epilepsy, and nonpatient controls? Epilepsy Behav 2005;7:430–437.Google Scholar
Lally, N, Spence, W, McCusker, C, Craig, J, Morrow, J. Psychological processes and histories associated with nonepileptic versus epileptic seizure presentations. Epilepsy Behav 2010;17:360–365.Google Scholar
Holman, N, Kirkby, A, Duncan, S, Brown, RJ. Adult attachment style and childhood interpersonal trauma in non-epileptic attack disorder. Epilepsy Res 2008;79:84–89.CrossRefGoogle ScholarPubMed
Stone, J, Binzer, M, Sharpe, M. Illness beliefs and locus of control: a comparison of patients with pseudoseizures and epilepsy. J Psychosom Res 2004;57:541–547.Google Scholar
Hilderink, PH, Collard, R, Rosmalen, JG, Oude, Voshaar RC. Prevalence of somatoform disorders and medically unexplained symptoms in old age populations in comparison with younger age groups: a systematic review. Ageing Res Rev 2013;12:151–156.Google Scholar
Fink, P, Hansen, MS, Oxhoj, M-L. The prevalence of somatoform disorders among internal medical inpatients. J Psychosom Res 2004;56:413–418.Google Scholar
De Waal, MWM, Arnold, IA, Eekhof, JAH, Van Hemert, AM. Somatoform disorders in general practice: prevalence, functional impairment and comorbidity with anxiety and depressive disorders. Br J Psychiatry 2004;184:470–476.Google Scholar
Escobar, JI, Waitzkin, H, Silver, RC, Gara, M, Holman, A. Abridged somatization: a study in primary care. Psychosom Med 1998;60:466–472.Google Scholar
Kroenke, K, Spitzer, RL, deGruy, FV, et al. Multisomatoform disorder: an alternative to undifferentiated somatoform disorder for the somatizing patient in primary care. Arch Gen Psychiatry 1997;54:352–358.Google Scholar
Verhaak, PFM, Meijer, SA, Visser, AP, Wolters, G. Persistent presentation of medically unexplained symptoms in general practice. Fam Pract 2006; 23:414–420.Google Scholar
Dimsdale, JE, Creed, F, Escobar, J, et al. Somatic symptom disorder: an important change in DSM. J Psychosom Res 2013;75:223–228.Google Scholar
Swanson, LM, Hamilton, JC, Feldman, MD. Physician-based estimates of medically unexplained symptoms: a comparison of four case definitions. Fam Pract 2010;27:487–493.Google Scholar
Johnston, S, Brenu, EW, Staines, D, Marshall-Gradisnik, S. The prevalence of chronic fatigue syndrome/ myalgic encephalomyelitis: a meta-analysis. Clin Epidemiol 2013;5:105–110.Google Scholar
Bates, DW, Schmitt, W, Buchwald, D, et al. Prevalence of fatigue and chronic fatigue syndrome in a primary care practice. Arch Intern Med 1993;153:2759–2765.Google Scholar
Branco, JC, Bannwarth, B, Failde, I, et al. Prevalence of fibromyalgia: a survey in five European countries. Semin Arthritis Rheum 2010;39:448–453.Google Scholar
Wolfe, F, Brahler, E, Hinz, A, Hauser, W. Fibromyalgia prevalence, somatic symptom reporting, and the dimensionality of polysymptomatic distress: results from a survey of the general population. Arthritis Care Res 2013;65:777–785.Google Scholar
Perrot, S, Vicaut, E, Servant, D, Ravaud, P. Prevalence of fibromyalgia in France: a multi-step study research combining national screening and clinical confirmation: the DEFI study (Determination of Epidemiology of FIbromyalgia). BMC Musculoskelet Disord 2011;12:224.Google Scholar
Ablin, JN, Oren, A, Cohen, S, et al. Prevalence of fibromyalgia in the Israeli population: a population-based study to estimate the prevalence of fibromyalgia in the Israeli population using the London Fibromyalgia Epidemiology Study Screening Questionnaire (LFESSQ). Clin Exp Rheumatol 2012;30:39–43.Google Scholar
Lawrence, RC, Felson, DT, Helmick, CG, et al. Estimates of the prevalence of arthritis and other rheumatic conditions in the United States: Part II. Arthritis Rheum 2008;58:26–35.Google Scholar
Lovell, RM, Ford, AC. Global prevalence of and risk factors for irritable bowel syndrome: a meta-analysis. Clin Gastroenterol Hepatol 2012;10:712–721.e714.Google Scholar
Fischer, S, Gaab, J, Ehlert, U, Nater, UM. Prevalence, overlap, and predictors of functional somatic syndromes in a student sample. Int J Behav Med 2013;20:184–193.Google Scholar
Katsinelos, P, Lazaraki, G, Kountouras, J, et al. Prevalence, bowel habit subtypes and medical care-seeking behaviour of patients with irritable bowel syndrome in Northern Greece. Eur J Gastroenterol Hepatol 2009;21:183–189.Google Scholar
Wessely, S, Chalder, T, Hirsch, S, Wallace, P, Wright, D. The prevalence and morbidity of chronic fatigue and chronic fatigue syndrome: a prospective primary care study. Am J Public Health 1997;87:1449–1455.Google Scholar
Lowe, B, Mundt, C, Herzog, W, et al. Validity of current somatoform disorder diagnoses: perspectives for classification in DSM-V and ICD-11. Psychopathology 2008;41:4–9.Google Scholar
Katon, W, Sullivan, M, Walker, E. Medical symptoms without identified pathology: relationship to psychiatric disorders, childhood and adult trauma, and personality traits. Ann Intern Med 2001;134:917–925.Google Scholar
Barsky, AJ, Orav, EJ, Bates, DW. Somatization increases medical utilization and costs independent of psychiatric and medical comorbidity. Arch Gen Psychiatry 2005; 62:903–910.Google Scholar
Fink, P. Surgery and medical treatment in persistent somatizing patients. J Psychosom Res 1992;36:439–447.Google Scholar
Doshi, JA, Cai, Q, Buono, JL, et al. Economic burden of irritable bowel syndrome with constipation: a retrospective analysis of health care costs in a commercially insured population. J Manag Care Pharm 2014;20:382–390.Google Scholar
Canavan, C, West, J, Card, T. Review article: the economic impact of the irritable bowel syndrome. Aliment Pharmacol Ther 2014;40:1023–1034.Google Scholar
Cai, Q, Buono, JL, Spalding, WM, et al. Healthcare costs among patients with chronic constipation: a retrospective claims analysis in a commercially insured population. J Med Econ 2014;17:148–158.Google Scholar
Lin, JM, Resch, SC, Brimmer, DJ, et al. The economic impact of chronic fatigue syndrome in Georgia: direct and indirect costs. Cost Eff Resource Alloc 2011;9:1.Google Scholar
Knight, T, Schaefer, C, Chandran, A, et al. Health-resource use and costs associated with fibromyalgia in France, Germany, and the United States. Clinicoecon Outcomes Res 2013;5:171–180.Google Scholar
Chandran, A, Schaefer, C, Ryan, K, et al. The comparative economic burden of mild, moderate, and severe fibromyalgia: results from a retrospective chart review and cross-sectional survey of working-age U.S. adults. J Managed Care Pharm 2012;18:415–426.Google Scholar
Sabes-Figuera, R, McCrone, P, Hurley, M, et al. The hidden cost of chronic fatigue to patients and their families. BMC Health Serv Res 2010;10:56.Google Scholar
Kleinman, N, Harnett, J, Melkonian, A, et al. Burden of fibromyalgia and comparisons with osteoarthritis in the workforce. J Occup Environ Med 2009;51:1384–1393.Google Scholar
Nurmi, E, Haapamaki, J, Paavilainen, E, et al. The burden of inflammatory bowel disease on health care utilization and quality of life. Scand J Gastroenterol 2013;48:51–57.Google Scholar
Wolfe, F, Michaud, K. Severe rheumatoid arthritis (RA), worse outcomes, comorbid illness, and sociodemographic disadvantage characterize ra patients with fibromyalgia. J Rheumatol 2004;31:695–700.Google Scholar
Wolfe, F, Michaud, K, Li, T, Katz, RS. EQ-5D and SF-36 quality of life measures in systemic lupus erythematosus: comparisons with rheumatoid arthritis, noninflammatory rheumatic disorders, and fibromyalgia. J Rheumatol 2010;37:296–304.Google Scholar
Zimmerman, J. Extraintestinal symptoms in irritable bowel syndrome and inflammatory bowel diseases: nature, severity, and relationship to gastrointestinal symptoms. Dig Dis Sci 2003;48:743–749.Google Scholar
Pace, F, Molteni, P, Bollani, S, et al. Inflammatory bowel disease versus irritable bowel syndrome: a hospital-based, case-control study of disease impact on quality of life. Scand J Gastroenterol 2003;38:1031–1038.Google Scholar
Walker, EA, Gelfand, AN, Gelfand, MD, Katon, WJ. Psychiatric diagnoses, sexual and physical victimization, and disability in patients with irritable bowel syndrome or inflammatory bowel disease. Psychol Med 1995;25:1259–1267.Google Scholar
Walker, JG, Littlejohn, GO. Measuring quality of life in rheumatic conditions. Clin Rheumatol 2007;26:671–673.Google Scholar
Carson, AJ, Ringbauer, B, Stone, J, et al. Do medically unexplained symptoms matter? A prospective cohort study of 300 new referrals to neurology outpatient clinics. J Neurol Neurosurg Psychiatry 2000;68:207–210.Google Scholar
Nimnuan, C, Hotopf, M, Wessely, S. Medically unexplained symptoms: an epidemiological study in seven specialities. J Psychosom Res 2001;51:361–367.Google Scholar
Snijders, TJ, de Leeuw, FE, Klumpers, UM, Kappelle, LJ, van Gijn, J. Prevalence and predictors of unexplained neurological symptoms in an academic neurology outpatient clinic–an observational study. J Neurol 2004;251:66–71.Google Scholar
Parry, AM, Murray, B, Hart, Y, Bass, C. Audit of resource use in patients with non-organic disorders admitted to a UK neurology unit. J Neurol Neurosurg Psychiatry 2006;77:1200–1201.Google Scholar
Stone, J, Carson, A, Duncan, R, et al. Symptoms ‘unexplained by organic disease’ in 1144 new neurology out-patients: how often does the diagnosis change at follow-up? Brain 2009;132:2878–2888.Google Scholar
Fink, P, Steen, HM, Sondergaard, L. Somatoform disorders among first-time referrals to a neurology service. Psychosomatics 2005;46:540–548.Google Scholar
Stone, J, Carson, A, Duncan, R, et al. Who is referred to neurology clinics? – the diagnoses made in 3781 new patients. Clin Neurol Neurosurg 2010;112:747–751.Google Scholar
Perkin, GD. An analysis of 7836 successive new outpatient referrals. J Neurol Neurosurg Psychiatry 1989;52:447–448.Google Scholar
Schiffer, RB. Psychiatric aspects of clinical neurology. Am J Psychiatry 1983;140:205–207.Google Scholar
Marsden, CD. Hysteria – a neurologist's view. Psychol Med 1986;16:277–288.Google Scholar
Lempert, T, Dieterich, M, Huppert, D, Brandt, T. Psychogenic disorders in neurology: frequency and clinical spectrum. Acta Neurol Scand 1990;82:335–340.Google Scholar
Schofield, A, Duane, MM. Neurologic referrals to a psychiatric consultation-liaison service. A study of 199 patients. Gen Hosp Psychiatry 1987;9:280–286.Google Scholar
Mace, CJ, Trimble, MR. Ten-year prognosis of conversion disorder. Br J Psychiatry 1996;169:282–288.Google Scholar
Carson, A, Stone, J, Hibberd, C, et al. Disability, distress and unemployment in neurology outpatients with symptoms ‘unexplained by organic disease’. J Neurol Neurosurg Psychiatry 2011;82:810–813.Google Scholar
Carson, AJ, Stone, J, Warlow, C, Sharpe, M. Patients whom neurologists find difficult to help. J Neurol Neurosurg Psychiatry 2004;75:1776–1778.Google Scholar
Stone, J, Smyth, R, Carson, A, et al. Systematic review of misdiagnosis of conversion symptoms and “hysteria”. Br Med J 2005;331:989.Google Scholar
Benbadis, SR. A spell in the epilepsy clinic and a history of “chronic pain” or “fibromyalgia” independently predict a diagnosis of psychogenic seizures. Epilepsy Behav 2005;6:264–265.Google Scholar
Duncan, R, Razvi, S, Mulhern, S. Newly presenting psychogenic nonepileptic seizures: incidence, population characteristics, and early outcome from a prospective audit of a first seizure clinic. Epilepsy Behav 2011;20:308–311.Google Scholar
Driver-Dunckley, E, Stonnington, CM, Locke, DE, Noe, K. Comparison of psychogenic movement disorders and psychogenic nonepileptic seizures: is phenotype clinically important? Psychosomatics 2011;52:337–345.Google Scholar
Dworetzky, B, Mortati, K, Rossetti, A, et al. Clinical characteristics of psychogenic nonepileptic seizure status in the long-term monitoring unit. Epilepsy Behav 2006;9:335–338.Google Scholar
de Wet, CJ, Mellers, JD, Gardner, WN, Toone, BK. Pseudoseizures and asthma. J Neurol Neurosurg Psychiatry 2003;74:639–641.Google Scholar
Lempert, T, Schmidt, D. Natural history and outcome of psychogenic seizures: a clinical study in 50 patients. J Neurol 1990;237:35–38.Google Scholar
Bowman, ES, Markand, ON. Diagnosis and treatment of pseudoseizures. Psychiatric Ann 2005;35:306–316.Google Scholar
Meierkord, H, Will, B, Fish, D, Shorvon, S. The clinical features and prognosis of pseudoseizures diagnosed using video-EEG telemetry. Neurology 1991;41:1643–1646.Google Scholar
Pakalnis, A, Paolicchi, J. Frequency of secondary conversion symptoms in children with psychogenic nonepileptic seizures. Epilepsy Behav 2003;4:753–756.Google Scholar
Crimlisk, HL, Bhatia, K, Cope, H, et al. Slater revisited: 6 year follow up study of patients with medically unexplained motor symptoms. Br Med J 1998;316:582–586.Google Scholar
Reuber, M, House, AO, Pukrop, R, Bauer, J, Elger, CE. Somatization, dissociation and general psychopathology in patients with psychogenic non-epileptic seizures. Epilepsy Res 2003;57:159–167.Google Scholar
Reuber, M, Howlett, S, Khan, A, Grunewald, RA. Non-epileptic seizures and other functional neurological symptoms: predisposing, precipitating, and perpetuating factors. Psychosomatics 2007;48:230–238.Google Scholar
Magee, JA, Burke, T, Delanty, N, Pender, N, Fortune, GM. The economic cost of nonepileptic attack disorder in Ireland. Epilepsy Behav 2014;33:45–48.Google Scholar
Ahmedani, BK, Peterson, EL, Wells, KE, Lanfear, DE, Williams, LK. Policies and events affecting prescription opioid use for non-cancer pain among an insured patient population. Pain Physician 2014;17:205–216.Google Scholar
Duncan, R, Graham, CD, Oto, M. Outcome at 5–10 years in psychogenic nonepileptic seizures: what patients report vs. what family doctors report. Epilepsy Behav 2014;37C:71–74.Google Scholar
Strzelczyk, A, Reese, JP, Dodel, R, Hamer, HM. Cost of epilepsy: a systematic review. Pharmaco Economics 2008;26:463–476.Google Scholar
Begley, CE, Beghi, E. The economic cost of epilepsy: a review of the literature. Epilepsia 2002;43:3–9.Google Scholar
Begley, CE, Annegers, JF, Lairson, DR, Reynolds, TF, Hauser, WA. Cost of epilepsy in the United States: a model based on incidence and prognosis. Epilepsia 1994;35:1230–1243.Google Scholar
Ahmedani, BK, Osborne, J, Nerenz, DR, et al. Diagnosis, costs, and utilization for psychogenic non-epileptic seizures in a US health care setting. Psychosomatics 2013;54:28–34.Google Scholar
Jirsch, JD, Ahmed, SN, Maximova, K, Gross, DW. Recognition of psychogenic nonepileptic seizures diminishes acute care utilization. Epilepsy Behav 2011;22:304–307.Google Scholar
Razvi, S, Mulhern, S, Duncan, R. Newly diagnosed psychogenic nonepileptic seizures: health care demand prior to and following diagnosis at a first seizure clinic. Epilepsy Behav 2012;23:7–9.Google Scholar
Duncan, R, Graham, CD, Oto, M, et al. Primary and secondary care attendance, anticonvulsant and antidepressant use and psychiatric contact 5–10 years after diagnosis in 188 patients with psychogenic non-epileptic seizures. J Neurol Neurosurg Psychiatry 2014;85:954–958.Google Scholar
Oto, M, Espie, C, Pelosi, A, Selkirk, M, Duncan, R. The safety of antiepileptic drug withdrawal in patients with non-epileptic seizures. J Neurol Neurosurg Psychiatry 2005;76:1682–1685.Google Scholar
Martin, R, Gilliam, F, Kilgore, M, Faught, E, Kuzniecky, R. Improved health care resource utilization following video-EEG confirmed diagnosis of nonepileptic psychogenic seizures. Seizure 1998;7:385–390.Google Scholar
Finlayson, O, Mirsattari, SM, Derry, P, et al. Economic impact of non-epileptic seizures on the health care system and the importance of their early diagnosis and treatment. Neurology 2008;70:A69-A70.Google Scholar
Hamilton, J, Martin, R, Stone, J, Worley, C. The burden of psychogenic nonepileptic seizures (PNES) in context: PNES and medically unexplained symptoms. In: Schachter SC, LaFrance WC Jr., Gates and Rowan's Nonepileptic Seizures, 3rd edn. New York: Cambridge University Press, 2010:27–37.Google Scholar
Reuber, M, Elger, CE. Psychogenic nonepileptic seizures: review and update. Epilepsy Behav 2003;4:205–216.Google Scholar
Dworetzky, BA, Mortati, KA, Rossetti, AO, et al. Clinical characteristics of psychogenic nonepileptic seizure status in the long-term monitoring unit. Epilepsy Behav 2006;9:335–338.Google Scholar
Hantke, NC, Doherty, MJ, Haltiner, AM. Medication use profiles in patients with psychogenic nonepileptic seizures. Epilepsy Behav 2007;10:333–335.Google Scholar
Bodde, NM, Janssen, AM, Theuns, C, et al. Factors involved in the long-term prognosis of psychogenic nonepileptic seizures. J Psychosom Res 2007;62:545–551.Google Scholar
Oto, M, Espie, C, Pelosi, A, Selkirk, M, Duncan, R. The safety of antiepileptic drug withdrawal in patients with non-epileptic seizures. J Neurol Neurosurg Psychiatry 2005;76:1682–1685.Google Scholar
Reuber, M, Pukrop, R, Bauer, J, et al. Outcome in psychogenic nonepileptic seizures: 1 to 10 year follow-up in 164 patients. Ann Neurol 2003;53:305–311.Google Scholar
Binder, LM, Salinsky, MC. Psychogenic nonepileptic seizures. Neuropsychol Rev 2007;17:405–412.Google Scholar
Reuber, M. Psychogenic nonepileptic seizures: answers and questions. Epilepsy Behav 2008;12:622–635.Google Scholar
So, EL, Schauble, BS. Ictal asomatognosia as a cause of epileptic falls: simultaneous video, EMG, and invasive EEG. Neurology 2004;63:2153–2154.Google Scholar
Walczak, T, Papcostas, S, Williams, D, Scheuer, M, Notarfanscesco, A. Outcome after diagnosis of psychogenic nonepileptic seizures. Epilepsia 1995;36:1131–1137.Google Scholar
Jones, SG, O'Brien, TJ, Adams, SJ, et al. Clinical characteristics and outcome in patients with psychogenic nonepileptic seizures. Psychosom Med 2010;72:487–497.Google Scholar
Mayor, R, Howlett, S, Grunewald, R, Reuber, M. Long-term outcome of brief augmented psychodynamic interpersonal therapy for psychogenic nonepileptic seizures: seizure control and health care utilization. Epilepsia 2010;51:1169–1176.Google Scholar
LaFrance, WC, Baird, GL, Barry, JJ, et al. Multicenter pilot treatment trial for psychogenic nonepileptic seizures: a randomized clinical trial. JAMA Psychiatry 2014;71:997–1005.Google Scholar
Martlew, J, Pulman, J, Marson, AG. Psychological and behavioural treatments for adults with non-epileptic attack disorder. Cochrane Database Syst Rev 2014; 2:CD006370.Google Scholar
Conwill, M, Oakley, L, Evans, K, Cavanna, AE. CBT-based group therapy intervention for nonepileptic attacks and other functional neurological symptoms: a pilot study. Epilepsy Behav 2014;34:68–72.Google Scholar
Goldstein, LH, Chalder, T, Chigwedere, C, et al. Cognitive-behavioral therapy for psychogenic nonepileptic seizures: a pilot RCT. Neurology 2010;74:1986–1994.Google Scholar
Mayor, R, Brown, RJ, Cock, H, et al. Short-term outcome of psychogenic non-epileptic seizures after communication of the diagnosis. Epilepsy Behav 2012;25:676–681.Google Scholar
Duncan, R. Psychogenic nonepileptic seizures: diagnosis and initial management. Expert Rev Neurother 2010;1012:1803–1809.Google Scholar
Hall-Patch, L, Brown, R, House, A, et al. Acceptability and effectiveness of a strategy for the communication of the diagnosis of psychogenic nonepileptic seizures. Epilepsia 2010;51:70–78.Google Scholar
McKenzie, P, Oto, M, Russell, A, Pelosi, A, Duncan, R. Early outcomes and predictors in 260 patients with psychogenic nonepileptic attacks. Neurology 2010;74:64–69.Google Scholar
Seneviratne, U, Briggs, B, Lowenstern, D, D'Souza, W. The spectrum of psychogenic non-epileptic seizures and comorbidities seen in an epilepsy monitoring unit. J Clin Neurosci 2011;18:361–363.Google Scholar
Bodde, NM, van der Kruijs, SJ, Ijff, DM, et al. Subgroup classification in patients with psychogenic non-epileptic seizures. Epilepsy Behav 2013;26:279–289.Google Scholar
Alessi, R, Valente, KD. Psychogenic non-epileptic seizures at a tertiary care center in Brazil. Epilepsy Behav 2013;26:91–95.Google Scholar
An, DM, Wu, XT, Yan, B, Mu, J, Zhou, D. Clinical features of psychogenic nonepileptic seizures: a study of 64 cases in southwest China. Epilepsy Behav 2010;17:408–411.Google Scholar
Hubsch, C, Baumann, C, Hingray, C, et al. Clinical classification of psychogenic non-epileptic seizures based on video-EEG analysis and automatic clustering. J Neurol Neurosurg Psychiatry 2011;82:955–960.Google Scholar
Dhiman, V, Sinha, S, Rawat, VS, et al. Semiological characteristics of adults with psychogenic nonepileptic seizures (PNESs): an attempt towards a new classification. Epilepsy Behav 2013;27:427–432.Google Scholar
Asadi-Pooya, AA, Emami, Y, Emami, M, Sperling, MR. Prolonged psychogenic nonepileptic seizures or pseudostatus. Epilepsy Behav 2014;31:304–306.Google Scholar
Magaudda, A, Gugliotta, SC, Tallarico, R, et al. Identification of three distinct groups of patients with both epilepsy and psychogenic nonepileptic seizures. Epilepsy Behav 2011;22:318–323.Google Scholar
LaFrance, WC, Miller, IW, Ryan, CE, et al. Cognitive behavioral therapy for psychogenic nonepileptic seizures. Epilepsy Behav 2009;14:591–596.Google Scholar
Noe, KH, Grade, M, Stonnington, CM, Driver-Dunckley, E, Locke, DE. Confirming psychogenic nonepileptic seizures with video-EEG: sex matters. Epilepsy Behav 2012;23:220–223.Google Scholar
Strutt, AM, Hill, SW, Scott, BM, Uber-Zak, L, Fogel, TG. A comprehensive neuropsychological profile of women with psychogenic nonepileptic seizures. Epilepsy Behav 2011;20:24–28.Google Scholar
Asadi-Pooya, AA, Emami, M, Emami, Y. Ictal injury in psychogenic non-epileptic seizures. Seizure 2014;23:363–366.Google Scholar
Myers, L, Fleming, M, Lancman, M, Perrine, K, Lancman, M. Stress coping strategies in patients with psychogenic non-epileptic seizures and how they relate to trauma symptoms, alexithymia, anger and mood. Seizure 2013;22:634–639.Google Scholar
LaFrance, WC, Keitner, GI, Papandonatos, GD, et al. Pilot pharmacologic randomized controlled trial for psychogenic nonepileptic seizures. Neurology 2010;75:1166–1173.Google Scholar

References

Benbadis, SR. Differential diagnosis of epilepsy. Continuum (Minneap Minn) 2007;13:48–70.Google Scholar
Benbadis, SR, O'Neill, E, Tatum, WO, Heriaud, L. Outcome of prolonged video-EEG monitoring at a typical referral epilepsy center. Epilepsia 2004;45:1150–1153.Google Scholar
Smith, D, Defalla, BA, Chadwick, DW. The misdiagnosis of epilepsy and the management of refractory epilepsy in a specialist clinic. QJM 1999;92:15–23.Google Scholar
Scheepers, B, Clough, P, Pickles, C. The misdiagnosis of epilepsy: findings of a population study. Seizure 1998;7:403–406.Google Scholar
Reuber, M, Fernandez, G, Bauer, J, Helmstaedter, C, Elger, CE. Diagnostic delay in psychogenic nonepileptic seizures. Neurology 2002;58:493–495.Google Scholar
Carton, S, Thompson, PJ, Duncan, JS. Non-epileptic seizures: patients' understanding and reaction to the diagnosis and impact on outcome. Seizure 2003;12:287–294.Google Scholar
Nowack, WJ. Epilepsy: a costly misdiagnosis. Clin Electroencephalogr 1997;28:225–228.Google Scholar
Martin, RC, Gilliam, FG, Kilgore, M, Faught, E, Kuzniecky, R. Improved health care resource utilization following video-EEG-confirmed diagnosis of nonepileptic psychogenic seizures. Seizure 1998;7:385–390.Google Scholar
LaFrance, WC Jr., Alper, K, Babcock, D, et al. Nonepileptic seizures treatment workshop summary. Epilepsy Behav 2006;8:451–461.Google Scholar
Hunter, J, Jasper, HH. A method of analysis of seizure pattern and electroencephalogram: a cinematographic technique. Electroencephalogr Clin Neurophysiol 1949;1:113–114.Google Scholar
Penin, H. Elektronische Patientenuberwachung in der Nervenklinik Bonn [Electronic patient monitoring in the neurologic hospital of Bonn]. Umssch Wissensch Techn 1968;7:211–212.Google Scholar
Reuber, M, Jamnadas-Khoda, J, Broadhurst, M, et al. Psychogenic nonepileptic seizure manifestations reported by patients and witnesses. Epilepsia 2011;52:2028–2035.Google Scholar
Benbadis, SR. How many patients with pseudoseizures receive antiepileptic drugs prior to diagnosis? Eur Neurol 1999;41:114–115.Google Scholar
Temkin, NR, Davis, GR. Stress as a risk factor for seizures among adults with epilepsy. Epilepsia 1984;25:450–456.Google Scholar
Frucht, MM, Quigg, M, Schwaner, C, Fountain, NB. Distribution of seizure precipitants among epilepsy syndromes. Epilepsia 2000;41:1534–1539.Google Scholar
Benbadis, SR. A spell in the epilepsy clinic and a history of “chronic pain” or “fibromyalgia” independently predict a diagnosis of psychogenic seizures. Epilepsy Behav 2005;6:264–265.Google Scholar
Benbadis, SR, Lancman, ME, King, LM, Swanson, SJ. Preictal pseudosleep: a new finding in psychogenic seizures. Neurology 1996;47:63–67.Google Scholar
Thacker, K, Devinsky, O, Perrine, K, Alper, K, Luciano, D. Nonepileptic seizures during apparent sleep. Ann Neurol 1993;33:414–418.Google Scholar
Duncan, R, Oto, M, Russell, AJC, Conway, P. Pseudosleep events in patients with psychogenic non-epileptic seizures: prevalence and associations. J Neurol Neurosurg Psychiatry 2004;75:1009–1012.Google Scholar
Gazzola, DM, Carlson, C, Rugino, A, et al. Psychogenic nonepileptic seizures and chronic pain: a retrospective case-controlled study. Epilepsy Behav 2012;25:662–665.Google Scholar
Benbadis, SR. Hypergraphia and the diagnosis of psychogenic attacks. Neurology 2006;67:904.Google Scholar
Syed, TU, Arozullah, AM, Loparo, KL, et al. A self-administered screening instrument for psychogenic nonepileptic seizures. Neurology 2009;72:1646–1652.Google Scholar
Stone, J, LaFrance, WC Jr., Brown, R, et al. Conversion disorder: current problems and potential solutions for DSM-5. J Psychosom Res 2011;71:369–376.Google Scholar
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 5th edn. (DSM-5). Washington, DC: American Psychiatric Association, 2013.Google Scholar
Davis, BJ. Predicting nonepileptic seizures utilizing seizure frequency, EEG, and response to medication. Eur Neurol 2004;51:153–156.Google Scholar
Stephenson, J, Breningstall, G, Steer, C, et al. Anoxic-epileptic seizures: home video recordings of epileptic seizures induced by syncopes. Epileptic Disord 2004;6:15–19.Google Scholar
Chen, DK, Graber, KD, Anderson, CT, Fisher, RS. Sensitivity and specificity of video alone versus electroencephalography alone for the diagnosis of partial seizures. Epilepsy Behav 2008;13:115–118.Google Scholar
LaFrance, WC Jr., Baker, GA, Duncan, R, Goldstein, LH, Reuber, M. Minimum requirements for the diagnosis of psychogenic nonepileptic seizures: a staged approach: a report from the International League Against Epilepsy Nonepileptic Seizures Task Force. Epilepsia 2013;54:2005–2018.Google Scholar
Benbadis, SR, Tatum, WO, Vale, FL. When drugs don't work: an algorithmic approach to medically intractable epilepsy. Neurology 2000;55:1780–1784.Google Scholar
Syed, TU, LaFrance, WC Jr., Kahriman, ES, et al. Can semiology predict psychogenic nonepileptic seizures? A prospective study. Ann Neurol 2011;69:997–1004.Google Scholar
Woollacott, IO, Scott, C, Fish, DR, Smith, SM, Walker, MC. When do psychogenic nonepileptic seizures occur on a video/EEG telemetry unit? Epilepsy Behav 2010;17:228–235.Google Scholar
Perrin, MW, Sahoo, SK, Goodkin, HP. Latency to first psychogenic nonepileptic seizure upon admission to inpatient EEG monitoring: evidence for semiological differences. Epilepsy Behav 2010;19:32–35.Google Scholar
Desai, BT, Porter, RJ, Penry, JK. Psychogenic seizures. A study of 42 attacks in six patients, with intensive monitoring. Arch Neurol 1982;39:202–209.Google Scholar
Guberman, A. Psychogenic pseudoseizures in non-epileptic patients. Can J Psychiatry 1982;27:401–404.Google Scholar
Meierkord, H, Will, B, Fish, D, Shorvon, S. The clinical features and prognosis of pseudoseizures diagnosed using video-EEG telemetry. Neurology 1991;41:1643–1646.Google Scholar
Gates, JR, Ramani, V, Whalen, S, Loewenson, R. Ictal characteristics of pseudoseizures. Arch Neurol 1985;42:1183–1187.Google Scholar
Gulick, TA, Spinks, IP, King, DW. Pseudoseizures: ictal phenomena. Neurology 1982;32:24–30.Google Scholar
Bergen, D, Ristanovic, R. Weeping as a common element of pseudoseizures. Arch Neurol 1993;50:1059–1060.Google Scholar
Vossler, DG, Haltiner, AM, Schepp, SK, et al. Ictal stuttering: a sign suggestive of psychogenic nonepileptic seizures. Neurology 2004;63:516–519.Google Scholar
O'Sullivan, SS, Spillane, JE, McMahon, EM, et al. Clinical characteristics and outcome of patients diagnosed with psychogenic nonepileptic seizures: a 5-year review. Epilepsy Behav 2007;11:77–84.Google Scholar
Beniczky, S, Conradsen, I, Moldovan, M, et al. Quantitative analysis of surface electromyography during epileptic and nonepileptic convulsive seizures. Epilepsia 2014;55:1128–1134.Google Scholar
Bayly, J, Carino, J, Petrovski, S, et al. Time-frequency mapping of the rhythmic limb movements distinguishes convulsive epileptic from psychogenic nonepileptic seizures. Epilepsia 2013;54:1402–1408.Google Scholar
Chung, SS, Gerber, P, Kirlin, KA. Ictal eye closure is a reliable indicator for psychogenic nonepileptic seizures. Neurology 2006;66:1730–1731.Google Scholar
Syed, TU, Arozullah, AM, Suciu, GP, et al. Do observer and self-reports of ictal eye closure predict psychogenic nonepileptic seizures? Epilepsia 2008;49:898–904.Google Scholar
Chabolla, DR, Shih, JJ. Postictal behaviors associated with psychogenic nonepileptic seizures. Epilepsy Behav 2006;9:307–311.Google Scholar
Selkirk, M, Duncan, R, Oto, M, Pelosi, A. Clinical differences between patients with nonepileptic seizures who report antecedent sexual abuse and those who do not. Epilepsia 2008;49:1446–1450.Google Scholar
Burneo, JG, Martin, R, Powell, T, et al. Teddy bears: an observational finding in patients with non-epileptic events. Neurology 2003;61:714–715.Google Scholar
Gardella, E, Rubboli, G, Tassinari, CA. Ictal grasping: prevalence and characteristics in seizures with different semiology. Epilepsia 2006;47 Suppl 5:59–63.Google Scholar
Gardella, E, Rubboli, G, Tassinari, CA. Video-EEG analysis of ictal repetitive grasping in “frontal-hyperkinetic” seizures. Epileptic Disord 2006;8:267–273.Google Scholar
Sen, A, Scott, C, Sisodiya, SM. Stertorous breathing is a reliably identified sign that helps in the differentiation of epileptic from psychogenic non-epileptic convulsions: an audit. Epilepsy Res 2007;77:62–64.Google Scholar
Azar, NJ, Tayah, TF, Wang, L, Song, Y, Abou-Khalil, BW. Postictal breathing pattern distinguishes epileptic from nonepileptic convulsive seizures. Epilepsia 2007;49:132–137.Google Scholar
Rosemergy, I, Frith, R, Herath, S, Walker, E. Use of postictal respiratory pattern to discriminate between convulsive psychogenic nonepileptic seizures and generalized tonic-clonic seizures. Epilepsy Behav 2013;27:81–84.Google Scholar
Geyer, JD, Payne, TA, Faught, E, Drury, I. Postictal nose-rubbing in the diagnosis, lateralization, and localization of seizures. Neurology 1999;52:743–745.Google Scholar
Wennberg, R. Electroclinical analysis of postictal noserubbing. Can J Neurol Sci 2000;27:131–136.Google Scholar
Wennberg, R. Postictal coughing and noserubbing coexist in temporal lobe epilepsy. Neurology 2001;56:133–134.Google Scholar
Elzawahry, H, Do, CS, Lin, K, Benbadis, SR. The diagnostic utility of the ictal cry. Epilepsy Behav 2010;18:306–307.Google Scholar
Benbadis, SR, Wolgamuth, BR, Goren, H, Brener, S, Fouad-Tarazi, F. Value of tongue biting in the diagnosis of seizures. Arch Intern Med 1995;155:2346–2349.Google Scholar
Hoefnagels, WA, Padberg, GW, Overweg, J, van der Velde, EA, Roos, RA. Transient loss of consciousness: the value of the history for distinguishing seizure from syncope. J Neurol 1991;238:39–43.Google Scholar
de Timary, P, Fouchet, P, Sylin, M, et al. Non-epileptic seizures: delayed diagnosis in patients presenting with electroencephalographic (EEG) or clinical signs of epileptic seizures. Seizure 2002;11:193–197.Google Scholar
Brigo, F, Nardone, R, Bongiovanni, LG. Value of tongue biting in the differential diagnosis between epileptic seizures and syncope. Seizure 2012;21:568–572.Google Scholar
Brigo, F, Storti, M, Lochner, P, et al. Tongue biting in epileptic seizures and psychogenic events: an evidence-based perspective. Epilepsy Behav 2012;25(2):251–255.Google Scholar
Peguero, E, Abou-Khalil, B, Fakhoury, T, Mathews, G. Self-injury and incontinence in psychogenic seizures. Epilepsia 1995;36:586–591.Google Scholar
Reuber, M, Pukrop, R, Bauer, J, et al. Outcome in psychogenic nonepileptic seizures: 1 to 10-year follow-up in 164 patients. Ann Neurol 2003;53:305–311.Google Scholar
Trimble, MR. Non-epileptic seizures. In: Halligan, PW, Bass, CM, Marshall, JC, eds. Contemporary Approaches to the Study of Hysteria: Clinical and Theoretical Perspectives. Chapter 10. Oxford: Oxford University Press, 2001;143–154.Google Scholar
Asadi-Pooya, AA, Emami, Y, Emami, M, Sperling, MR. Prolonged psychogenic nonepileptic seizures or pseudostatus. Epilepsy Behav 2014;31:304–306.Google Scholar
Dworetzky, BA, Bubrick, EJ, Szaflarski, JP. Nonepileptic psychogenic status: markedly prolonged psychogenic nonepileptic seizures. Epilepsy Behav 2010;19:65–68.Google Scholar
Seneviratne, U, Rajendran, D, Brusco, M, Phan, TG. How good are we at diagnosing seizures based on semiology? Epilepsia 2012;53:e63–66.Google Scholar
Dhiman, V, Sinha, S, Rawat, VS, et al. Semiological characteristics of adults with psychogenic nonepileptic seizures (PNESs): an attempt towards a new classification. Epilepsy Behav 2013;27:427–432.Google Scholar
Schachter, SC, Brown, F, Rowan, AJ. Provocative testing for nonepileptic seizures: attitudes and practices in the United States among American Epilepsy Society members. J Epilepsy 1996;9:249–252.Google Scholar
Sumner, JW Jr., Cameron, RR, Peterson, DB. Hypnosis in differentiation of epileptic from convulsive-like seizures. Neurology 1952;2:395–402.Google Scholar
Lambert, C, Rees, WL. Intravenous barbiturates in the treatment of hysteria. Br Med J 1944;2:70–73.Google Scholar
Stagno, SJ, Smith, ML. Use of induction in diagnosing psychogenic seizures. J Epilepsy 1996;9:153–158.Google Scholar
Walczak, TS, Williams, DT, Berten, W. Utility and reliability of placebo infusion in the evaluation of patients with seizures. Neurology 1994;44:394–399.Google Scholar
Cohen, RJ, Suter, C. Hysterical seizures: suggestion as a provocative EEG test. Ann Neurol 1982;11:391–395.Google Scholar
Bazil, CW, Kothari, M, Luciano, D, et al. Provocation of nonepileptic seizures by suggestion in a general seizure population. Epilepsia 1994;35:768–770.Google Scholar
Slater, JD, Brown, MC, Jacobs, W, Ramsay, RE. Induction of pseudoseizures with intravenous saline placebo. Epilepsia 1995;36:580–585.Google Scholar
Ribai, P, Tugendhaft, P, Legros, B. Usefulness of prolonged video-EEG monitoring and provocative procedure with saline injection for the diagnosis of non epileptic seizures of psychogenic origin. J Neurol 2006;253:328–332.Google Scholar
Cohen, LM, Howard, GF, Bongar, B. Provocation of pseudoseizures by psychiatric interview during EEG and video monitoring. Int J Psychiatry Med 1992;22:131–140.Google Scholar
Luther, JS, McNamara, JO, Carwile, S, Miller, P, Hope, V. Pseudoepileptic seizures: methods and video analysis to aid diagnosis. Ann Neurol 1982;12:458–462.Google Scholar
Riley, TL, Berndt, T. The role of the EEG technologist in delineating pseudoseizures. Am J EEG Technol 1980;20:89–96.Google Scholar
Goyal, G, Kalita, J, Misra, UK. Utility of different seizure induction protocols in psychogenic nonepileptic seizures. Epilepsy Res 2014;108:1120–1127.Google Scholar
Lancman, ME, Asconape, JJ, Craven, WJ, Howard, G, Penry, JK. Predictive value of induction of psychogenic seizures by suggestion. Ann Neurol 1994;35:359–361.Google Scholar
Benbadis, SR. Provocative techniques should be used for the diagnosis of psychogenic nonepileptic seizures. Epilepsy Behav 2009;15:106–109; discussion 115–118.Google Scholar
Leeman, BA. Provocative techniques should not be used for the diagnosis of psychogenic nonepileptic seizures. Epilepsy Behav 2009;15:110–114; discussion 115–118.Google Scholar
Benbadis, SR, Johnson, K, Anthony, K, et al. Induction of psychogenic nonepileptic seizures without placebo. Neurology 2000;55:1904–1905.Google Scholar
Benbadis, SR, Siegrist, K, Tatum, WO, Heriaud, L, Anthony, K. Short-term outpatient EEG video with induction in the diagnosis of psychogenic seizures. Neurology 2004;63:1728–1730.Google Scholar
Varela, HL, Taylor, DS, Benbadis, SR. Short-term outpatient EEG-video monitoring with induction in a veterans administration population. J Clin Neurophysiol 2007;24:390–391.Google Scholar
Bhatia, M, Sinha, PK, Jain, S, Padma, MV, Maheshwari, MC. Usefulness of short-term video EEG recording with saline induction in pseudoseizures. Acta Neurol Scand 1997;95:363–366.Google Scholar
McGonigal, A, Oto, M, Russell, AJ, Greene, J, Duncan, R. Outpatient video EEG recording in the diagnosis of non-epileptic seizures: a randomised controlled trial of simple suggestion techniques. J Neurol Neurosurg Psychiatry 2002;72:549–551.Google Scholar
Benbadis, SR, Tatum, WO. Overintepretation of EEGs and misdiagnosis of epilepsy. J Clin Neurophysiol 2003;20:42–44.Google Scholar
Benbadis, SR, Lin, K. Errors in EEG interpretation and misdiagnosis of epilepsy. Which EEG patterns are overread? Eur Neurol 2008;59:267–271.Google Scholar
Benbadis, SR. Errors in EEGs and the misdiagnosis of epilepsy: importance, causes, consequences, and proposed remedies. Epilepsy Behav 2007;11:257–262.Google Scholar
Benbadis, SR. “Just like EKGs!” Should EEGs undergo a confirmatory interpretation by a clinical neurophysiologist? Neurology 2013;80:S47–51.Google Scholar
Benbadis, SR, Agrawal, V, Tatum, IV WO. How many patients with psychogenic nonepileptic seizures also have epilepsy? Neurology 2001;57:915–917.Google Scholar
Lesser, RP, Lueders, H, Dinner, DS. Evidence for epilepsy is rare in patients with psychogenic seizures. Neurology 1983;33:502–504.Google Scholar
Reuber, M, Kral, T, Kurthen, M, Elger, CE. New-onset psychogenic seizures after intracranial neurosurgery. Acta Neurochir (Wien) 2002;144:901–907.Google Scholar
Hudak, AM, Trivedi, K, Harper, CR, et al. Evaluation of seizure-like episodes in survivors of moderate and severe traumatic brain injury. J Head Trauma Rehabil 2004;19:290–295.Google Scholar
LaFrance, WC Jr., Deluca, M, Machan, JT, Fava, JL. Traumatic brain injury and psychogenic nonepileptic seizures yield worse outcomes. Epilepsia 2013;54:718–725.Google Scholar
Salinsky, M, Spencer, D, Boudreau, E, Ferguson, F. Psychogenic nonepileptic seizures in US veterans. Neurology 2011;77:945–950.Google Scholar
Salinsky, M, Storzbach, D, Goy, E, Evrard, C. Traumatic brain injury and psychogenic seizures in veterans. J Head Trauma Rehabil 2015;30:E65–70.Google Scholar
Chen, DK, Izadyar, S. Characteristics of psychogenic nonepileptic events among veterans with posttraumatic stress disorder: an association of semiology with the nature of trauma. Epilepsy Behav 2010;17:188–192.Google Scholar
LaFrance, Jr., Self, JA. Do bus accidents cause nonepileptic seizures? Complex issues of medicolegal causation. J Am Acad Psychiatry Law 2008;36:227–233.Google Scholar
Duncan, R, Oto, M, Martin, E, Pelosi, A. Late onset psychogenic nonepileptic attacks. Neurology 2006;66:1644–1647.Google Scholar
Behrouz, R, Heriaud, L, Benbadis, SR. Late-onset psychogenic nonepileptic seizures. Epilepsy Behav 2006;8:649–650.Google Scholar
Davies, KG, Blumer, DP, Lobo, S, et al. De novo nonepileptic seizures after cranial surgery for epilepsy: incidence and risk factors. Epilepsy Behav 2000;1:436–443.Google Scholar
Glosser, G, Roberts, D, Glosser, DS. Nonepileptic seizures after resective epilepsy surgery. Epilepsia 1999;40:1750–1754.Google Scholar
Ney, GC, Barr, WB, Napolitano, C, Decker, R, Schaul, N. New-onset psychogenic seizures after surgery for epilepsy. Arch Neurol 1998;55:726–730.Google Scholar
Devinsky, O, Sato, S, Kufta, CV, et al. Electroencephalographic studies of simple partial seizures with subdural electrode recordings. Neurology 1989;39:527–533.Google Scholar
Sperling, MR, O'Connor, MJ. Auras and subclinical seizures: characteristics and prognostic significance. Ann Neurol 1990;28:320–328.Google Scholar
Driver-Dunckley, E, Stonnington, CM, Locke, DE, Noe, K. Comparison of psychogenic movement disorders and psychogenic nonepileptic seizures: is phenotype clinically important? Psychosomatics 2011;52:337–345.Google Scholar
Terada, K, Ikeda, A, Van Ness, PC, et al. Presence of Bereitschaftspotential preceding psychogenic myoclonus: clinical application of jerk-locked back averaging. J Neurol Neurosurg Psychiatry 1995;58:745–747.Google Scholar
Tinuper, P, Grassi, C, Bisulli, F, et al. Split-screen synchronized display. A useful video-EEG technique for studying paroxysmal phenomena. Epileptic Disord 2004;6:27–30.Google Scholar
Ramsay, RE, Cohen, A, Brown, MC. Coexisting epilepsy and non-epileptic seizures. In: Rowan, AJ, Gates, JR, eds. Non-Epileptic Seizures, Chapter 6. Stoneham, MA: Butterworth-Heinemann, 1993;47–54.Google Scholar
Benbadis, SR, LaFrance, WC Jr., Papandonatos, GD, et al. Interrater reliability of EEG-video monitoring. Neurology 2009;73:843–846.Google Scholar
Willert, C, Spitzer, C, Kusserow, S, Runge, U. Serum neuron-specific enolase, prolactin, and creatine kinase after epileptic and psychogenic non-epileptic seizures. Acta Neurol Scand 2004;109:318–323.Google Scholar
Sandstrom, SA, Anschel, DJ, Chen, DK, So, YT, Fisher, RS. Use of serum prolactin in diagnosing epileptic seizures: report of the Therapeutics and Technology Assessment Subcommittee of the American Academy of Neurology. Neurology 2006;67:544–545.Google Scholar
Cragar, DE, Berry, DT, Fakhoury, TA, Cibula, JE, Schmitt, FA. Performance of patients with epilepsy or psychogenic non-epileptic seizures on four measures of effort. Clin Neuropsychol 2006;20:552–566.Google Scholar
Direk, N, Kulaksizoglu, IB, Alpay, K, Gurses, C. Using personality disorders to distinguish between patients with psychogenic nonepileptic seizures and those with epileptic seizures. Epilepsy Behav 2012;23:138–141.Google Scholar
Hill, SW, Gale, SD. Predicting psychogenic nonepileptic seizures with the Personality Assessment Inventory and seizure variables. Epilepsy Behav 2011;22:505–510.Google Scholar
Labate, A, Cerasa, A, Mula, M, et al. Neuroanatomic correlates of psychogenic nonepileptic seizures: a cortical thickness and VBM study. Epilepsia 2012;53:377–385.Google Scholar
van der Kruijs, SJ, Jagannathan, SR, Bodde, NM, et al. Resting-state networks and dissociation in psychogenic non-epileptic seizures. J Psychiatr Res 2014;54:126–133.Google Scholar
Aminoff, MJ, Goodin, DS, Berg, BO, Compton, MN. Ambulatory EEG recordings in epileptic and nonepileptic children. Neurology 1988;38:558–562.Google Scholar
Zaidi, A, Clough, P, Cooper, P, Scheepers, B, Fitzpatrick, AP. Misdiagnosis of epilepsy: many seizure-like attacks have a cardiovascular cause. J Am Coll Cardiol 2000;36:181–184.Google Scholar
Lempert, T, Bauer, M, Schmidt, D. Syncope: a videometric analysis of 56 episodes of transient cerebral hypoxia. Ann Neurol 1994;36:233–237.Google Scholar
Benbadis, SR, Chichkova, R. Psychogenic pseudosyncope: an underestimated and provable diagnosis. Epilepsy Behav 2006;9:106–110.Google Scholar
Sheldon, RS, Koshman, ML, Murphy, WF. Electroencephalographic findings during presyncope and syncope induced by tilt table testing. Can J Cardiol 1998;14:811–816.Google Scholar
Sheldon, R, Rose, S, Ritchie, D, et al. Historical criteria that distinguish syncope from seizures. J Am Coll Cardiol 2002;40:142–148.Google Scholar
Derry, CP, Davey, M, Johns, M, et al. Distinguishing sleep disorders from seizures: diagnosing bumps in the night. Arch Neurol 2006;63:705–709.Google Scholar
Iranzo, A, Santamaria, J, Rye, DB, et al. Characteristics of idiopathic REM sleep behavior disorder and that associated with MSA and PD. Neurology 2005;65:247–252.Google Scholar
Montagna, P, Liguori, R, Zucconi, M, et al. Physiological hypnic myoclonus. Electroencephalogr Clin Neurophysiol 1988;70:172–176.Google Scholar
Fahn, S, Williams, DT. Psychogenic dystonia. Adv Neurol 1988;50:431–455.Google Scholar
Benbadis, SR, Chen, S, Melo, M. What's shaking in the ICU? The differential diagnosis of seizures in the intensive care setting. Epilepsia 2010;5:2338–2340.Google Scholar
Posner, JB, Saper, CB, Schiff, ND, Plum, F. Psychogenic unresponsiveness. In: Posner, JB, Saper, CB, Schiff, ND, Plum, F, eds. Plum and Posner's Diagnosis of Stupor and Coma, 4th edn, Chapter 6. New York: Oxford University Press, 2007;297–308.Google Scholar
Reuber, M, Elger, CE. Psychogenic nonepileptic seizures: review and update. Epilepsy Behav 2003;4:205–216.Google Scholar
LaFrance, WC Jr. Psychogenic nonepileptic seizures. Curr Opin Neurol 2008;21:195–201.Google Scholar

References

Lesser, RP. Psychogenic seizures. Neurology 1996;46:1499–1507.Google Scholar
Lesser, RP, Lüders, H, Dinner, DS. Evidence for epilepsy is rare in patients with psychogenic seizures. Neurology 1983;33:502–504.Google Scholar
Gates, JR, Luciano, D, Devinsky, O. The classification and treatment of nonepileptic events. In: Devinsky, O, Theodore, WH, eds. Epilepsy and Behavior. New York: Wiley-Liss, 1991;251–263.Google Scholar
Benbadis, SR, Agrawal, V, TatumIV, WO. How many patients with psychogenic nonepileptic seizures also have epilepsy? Neurology 2001;57:915–917.Google Scholar
Beau, B. Récherches statisques pour servir a l'histoire de l'epilepsie et de l'hysterie. Arch Gen Med 1836;11:328–352.Google Scholar
Esquirol, E. Des maladies mentales. Vol. 1. Paris: J.S. Chaude, 1838, 284.Google Scholar
Martin, R, Burneo, JG, Prasad, A, et al. Frequency of epilepsy in patients with psychogenic seizures monitored by video-EEG. Neurology 2003;61:1791–1792.Google Scholar
Muller, T, Merschhemke, M, Dehnicke, C, Sanders, M, Meencke, H-J. Improving diagnostic procedure and treatment in patients with non-epileptic seizures (NES). Seizure 2002;11:85–89.Google Scholar
Mari, F, Di Bonaventura, C, Vanacore, N, et al. Video-EEG study of psychogenic non-epileptic seizures: differential characteristics in patients with and without epilepsy. Epilepsia 2006;47 Suppl 5:64–67.Google Scholar
Sigurdardottir, KR, Olafsson, E. Incidence of psychogenic seizures in adults: a population-based study in Iceland. Epilepsia 2005;39:749–752.Google Scholar
Reuber, M, Fernández, G, Bauer, J, Helmstaedter, C, Elger, CE. Diagnostic delay in psychogenic nonepileptic seizures. Neurology 2002;58:493–495.Google Scholar
Hoepner, R, Labudda, K, May, TW, et al. Distinguishing between patients with pure psychogenic nonepileptic seizures and those with comorbid epilepsy by means of clinical data. Epilepsy Behav 2014;35:54–58.Google Scholar
Reuber, M, Qurishi, A, Bauer, J, et al. Are there physical risk factors for psychogenic non-epileptic seizures in patients with epilepsy? Seizure 2003;12:561–567.Google Scholar
Rotge, JY, Lambrecq, V, Marchal, C, et al. Conversion disorder and coexisting nonepileptic seizures in patients with refractory seizures. Epilepsy Behav 2009;16:350–352.Google Scholar
Dodrill, CB, Holmes, MD. Psychological and neuropsychological evaluation of the patient with non-epileptic seizures. In: Gates, JR, Rowan, AJ, eds. Non-Epileptic Seizures, 2nd edn. Boston, MA: Butterworth-Heinemann, 2000;169–181.Google Scholar
Szaflarski, JP, Hughes, C, Szaflarski, M, et al. Quality of life in psychogenic nonepileptic seizures. Epilepsia 2003;44:236–242.Google Scholar
Boylan, LS, Flint, LA, Labovitz, DL, et al. Depression but not seizure frequency predicts quality of life in treatment-resistant epilepsy. Neurology 2004;62: 258–261.Google Scholar
Devinsky, O, Vickrey, BG, Cramer, J, et al. Development of the quality of life in epilepsy inventory. Epilepsia 1995;36:1089–1104.Google Scholar
Karakis, I, Montouris, GD, Piperidou, C, et al. Patient and caregiver quality of life in psychogenic non-epileptic seizures compared to epileptic seizures. Seizure 2014;23:47–54.Google Scholar
LaFrance, WC, Benbadis, SR. Avoiding the costs of unrecognized psychological nonepileptic seizures. Neurology 2006;66:1620–1621.Google Scholar
Martin, RC, Gilliam, FG, Kilgore, M, Faught, E, Kuzniecky, R. Improved health care resource utilization following video-EEG-confirmed diagnosis of nonepileptic psychogenic seizures. Seizure 1998;7:385–390.Google Scholar
Henry, TR, Drury, I. Non-epileptic seizures in temporal lobectomy candidates with medically refractory seizures. Neurology 1997;48:1374–1382.Google Scholar
Kuyk, J, Swinkels, WAM, Spinhoven, P. Psychopathologies in patients with non-epileptic seizures with and without comorbid epilepsy: how different are they? Epilepsy Behav 2003;4:13–18.Google Scholar
Vinton, A, Carino, J, Vogrin, S, et al. “Convulsive” nonepileptic seizures have a characteristic pattern of rhythmic artifact distinguishing them from epileptic seizures. Epilepsia 2004;45:1344–1350.Google Scholar
Blumer, D, Adamolekun, B. Treatment of patients with co-existing nonepileptic and epileptic seizures. Epilepsy Behav 2006;9:498–502.Google Scholar
Ramani, SV, Quesney, LP, Olson, D, Gumnit, RJ. Diagnosis of hysterical seizures in epileptic patients. Am J Psychiatry 1980;137:705–709.Google Scholar
Selkirk, M, Duncan, R, Oto, M, Pelosi, A. Clinical differences between patients with nonepileptic seizures who report antecedent sexual abuse and those who do not. Epilepsia 2008;49:1446–1450.Google Scholar
De Timary, P, Fouchet, P, Sylin, M, et al. Non-epileptic seizures: delayed diagnosis in patients presenting with electroencephalographic (EEG) or clinical signs of epileptic seizures. Seizure 2002;11:193–197.Google Scholar
Reuber, M, Howlett, S, Khan, A, Grünewald, RA. Non-epileptic seizures and other functional neurological symptoms: predisposing, precipitating, and perpetuating factors. Psychosomatics 2007;48:230–238.Google Scholar
Alper, K, Devinsky, O, Perrine, K, Vazquez, B, Luciano, D. Nonepileptic seizures and childhood sexual and physical abuse. Neurology 1993;43:1950–1953.Google Scholar
Hubsch, C, Baumann, C, Hingray, C, et al. Clinical classification of psychogenic non-epileptic seizures based on video-EEG analysis and automatic clustering. J Neurol Neurosurg Psychiatry 2011;82:955–960.Google Scholar
Thacker, K, Devinsky, O, Perrine, K, et al. Nonepileptic seizures during apparent sleep. Ann Neurol 1993;33:414–418.Google Scholar
Orbach, D, Ritaccio, A, Devinsky, O. Psychogenic, nonepileptic seizures associated with video-EEG-verified sleep. Epilepsia 2003;44:64–68.Google Scholar
Benbadis, SR. A spell in the epilepsy clinic and a history of “chronic pain” or “fibromyalgia” independently predict a diagnosis of psychogenic seizures. Epilepsy Behav 2005;6:264–265.Google Scholar
Haut, SR, Hall, CB, Masur, J, Lipton, RB. Seizure occurrence: precipitants and prediction. Neurology 2007;69:1905–1910.Google Scholar
Betts, T. Epilepsy and stress. Br Med J 1992;305:378–379.Google Scholar
Devinsky, O, Mesad, S, Alper, K. Nondominant hemisphere lesions and conversion nonepileptic seizures. J Neuropsychiatry Clin Neurosci 2001;13:367–373.Google Scholar
Labate, A, Cerasa, A, Mula, M, et al. Neuroanatomic correlates of psychogenic nonepileptic seizures: a cortical thickness and VBM study. Epilepsia 2012;53:377–385.Google Scholar
Galimberti, CA, Ratti, MT, Murelli, R, et al. Patients with psychogenic non-epileptic seizures, alone or epilepsy-associated, share a psychological profile distinct from that of epilepsy patients. J Neurol 2003;250:338–346.Google Scholar
Schwabe, M, Howell, SJ, Reuber, M. Differential diagnosis of seizure disorders: a conversation analytic approach. Soc Sci Med 2007;65:712–724.Google Scholar
Magaudda, A, Gugliotta, SC, Tallarico, R, et al. Identification of three distinct groups of patients with both epilepsy and psychogenic nonepileptic seizures. Epilepsy Behav 2011;22:318–323.Google Scholar
Devinsky, O, Sanchez-Villasenor, F, Vasquez, B, et al. Clinical profile of patients with epileptic and nonepileptic seizures. Neurology 1996;46:1530–1533.Google Scholar
Devinsky, O, Gordon, E. Epileptic seizures progressing into nonepileptic conversion seizures. Neurology 1998;51:1293–1296.Google Scholar
Greig, E, Betts, T. Epileptic seizures induced by sexual abuse. Pathogenic and pathoplastic factors. Seizure 1992;1:269–274.Google Scholar
Bancaud, J, Favel, P, Bovis, A, et al. Paroxysmal sexual manifestations and temporal lobe epilepsy. Electroencephalogr Clin Neurophysiol 1971;30:368–374.Google Scholar
Kapur, J, Pillai, A, Henry, TR. Psychogenic elaboration of simple partial seizures. Epilepsia 1995; 36:1126–1130.Google Scholar
Wilner, AN, Bream, PR. Status epilepticus and pseudostatus epilepticus. Seizure 1993;2:257–260.Google Scholar
Niedermayer, E, Blumer, D, Holscher, E, et al. Classical hysterical seizures facilitated by anticonvulsant toxicity. Psychiatr Clin (Basel) 1970;3:71–84.Google Scholar
Oto, M, Espie, C, Pelosi, A, Selkirk, M, Duncan, R. The safety of antiepileptic drug withdrawal in patients with non-epileptic seizures. J Neurol Neurosurg Psychiatry 2005;76:1682–1685.Google Scholar
Gates, JR, Ramani, V, Whalen, S, et al. Ictal characteristics of pseudoseizures. Arch Neurol 1985;42:1183–1187.Google Scholar
Kanner, AM, Morris, HH, Lüders, H, et al. Supplementary motor seizures mimicking pseudoseizures: some clinical differences. Neurology 1990;40:1404–1407.Google Scholar
Chung, SS, Gerber, P, Kirlin, KA. Ictal eye closure is a reliable indicator for psychogenic nonepileptic seizures. Neurology 2006;66:1730–1731.Google Scholar
Ettinger, AB, Weisbrot, DM, Nolan, E, Devinsky, O. Postictal symptoms help distinguish patients with epileptic seizures from those with non-epileptic seizures. Seizure 1999;8:149–151.Google Scholar
D'Alessio, L, Giagante, B, Oddo, S, et al. Psychiatric disorders in patients with psychogenic nonepileptic seizures with and without comorbid epilepsy. Seizure 2006;15:333–339.Google Scholar
Fuller, G, Lindahl, A. Silent witnesses in the diagnosis of epilepsy. Pract Neurol 2005;5:206–209.Google Scholar
Bergen, D, Ristanovic, R. Weeping as a common element of pseudoseizures. Arch Neurol 1993;50:1059–1060.Google Scholar
Vossler, DG, Haltiner, AM, Schepp, SK, et al. Ictal stuttering: a sign suggestive of psychogenic non-epileptic seizures. Neurology 2004;63:516–519.Google Scholar
Sen, A, Scott, C, Sisodiya, S. Stertorous breathing is a reliably identified sign that helps in the differentiation of epileptic from psychogenic non-epileptic convulsions: an audit. Epilepsy Res 2007;77:62–64.Google Scholar
Opherk, C, Hirsch, L. Ictal heart rate differentiates epileptic from non-epileptic seizures. Neurology 2002;58:636–638.Google Scholar
Kotsopoulos, IAW, de Krom, CTFM, Kessels, FGH, et al. The diagnosis of epileptic and non-epileptic seizures. Epilepsy Res 2003;57:59–67.Google Scholar
LaFrance, WC, Benbadis, SR. Differentiating frontal lobe epilepsy from psychogenic nonepileptic seizures. Neurol Clin 2011;29:149–162.Google Scholar
Saygi, S, Katz, A, Marks, DA, Spencer, SS. Frontal lobe partial seizures and psychogenic seizures: comparison of clinical and ictal characteristics. Neurology 1992;42:1274–1277.Google Scholar
Morris, HH, Dinner, DS, Lüders, H, Wyllie, E, Kramer, R. Supplementary motor seizures: clinical and electroencephalographs findings. Neurology 1988;38:1075–1082.Google Scholar
Howell, SJ, Owen, L, Chadwick, DW. Pseudostatus epilepticus. QJM 1989;71:507–519.Google Scholar
Dworetzky, BA, Bubrick, EJ, Szaflarski, JP. Nonepileptic Seizure Task Force. Nonepileptic psychogenic status: markedly prolonged psychogenic nonepileptic seizures. Epilepsy Behav 2010;19:65–68.Google Scholar
Holtkamp, M, Othman, J, Buchheim, K, Meierkord, H. Diagnosis of psychogenic nonepileptic status epilepticus in the emergency setting. Neurology 2006;66:1727–1729.Google Scholar
Reuber, M, Pukrop, R, Mitchell, AJ, Bauer, J, Elger, CE. Clinical significance of recurrent psychogenic nonepileptic seizure status. J Neurol 2003;250:1355–1362.Google Scholar
Drake, ME, Pakalnis, A, Phillips, BB. Neuropsychological and psychiatric correlates of intractable pseudoseizures. Seizure 1992;1:11–13.Google Scholar
Dworetzky, BA, Mortati, KA, Rossetti, AO, et al. Clinical characteristics of psychogenic nonepileptic seizure status in the long-term monitoring unit. Epilepsy Behav 2006;9:335–338.