Addington, J, Case, N, Saleem, MM, Auther, AM, Cornblatt, BA, Cadenhead, KS (2013). Substance use in clinical high risk for psychosis: a review of the literature. Early Intervention in Psychiatry. Published online
. doi: 10.1111/eip.12100.
Arseneault, L, Cannon, M, Poulton, R, Murray, R, Caspi, A, Moffitt, TE (2002). Cannabis use in adolescence and risk for adult psychosis: longitudinal prospective study. British Medical Journal
Auther, AM, McLaughlin, D, Carrion, RE, Nagachandran, P, Correll, CU, Cornblatt, BA (2012). Prospective study of cannabis use in adolescents at clinical high risk for psychosis: impact on conversion to psychosis and functional outcome. Psychological Medicine
Barkus, EJ, Stirling, J, Hopkins, RS, Lewis, S (2006). Cannabis-induced psychosis-like experiences are associated with high schizotypy. Psychopathology
Batalla, A, Crippa, JA, Busatto, GF, Guimaraes, FS, Zuardi, AW, Valverde, O, Atakan, Z, McGuire, PK, Bhattacharyya, S, Martin-Santos, R (2013). Neuroimaging studies of acute effects of THC and CBD in humans and animals: a systematic review. Current Pharmaceutical Design. Published online
. doi: 10.2174/13816128113199990432.
Bhattacharyya, S, Atakan, Z, Martin-Santos, R, Crippa, JA, Kambeitz, J, Prata, D, Williams, S, Brammer, M, Collier, DA, McGuire, PK (2012
a). Preliminary report of biological basis of sensitivity to the effects of cannabis on psychosis: AKT1 and DAT1 genotype modulates the effects of δ−9-tetrahydrocannabinol on midbrain and striatal function. Molecular Psychiatry
Bhattacharyya, S, Crippa, JA, Allen, P, Martin-Santos, R, Borgwardt, S, Fusar-Poli, P, Rubia, K, Kambeitz, J, O'Carroll, C, Seal, ML, Giampietro, V, Brammer, M, Zuardi, AW, Atakan, Z, McGuire, PK (2012
b). Induction of psychosis by Δ9-tetrahydrocannabinol reflects modulation of prefrontal and striatal function during attentional salience processing. Archives of General Psychiatry
Casadio, P, Fernandes, C, Murray, RM, Di Forti, M (2011). Cannabis use in young people: the risk for schizophrenia. Neuroscience and Biobehavioural Reviews
Caspi, A, Moffitt, TE, Cannon, M, McClay, J, Murray, R, Harrington, H, Taylor, A, Arseneault, L, Williams, B, Braithwaite, A, Poulton, R, Craig, IW (2005). Moderation of the effect of adolescent-onset cannabis use on adult psychosis by a functional polymorphism in the catechol-O-methyltransferase gene: longitudinal evidence of a gene x environment interaction. Biological Psychiatry
Chadwick, B, Miller, ML, Hurd, YL (2013). Cannabis use during adolescent development: susceptibility to psychiatric illness. Frontiers in Psychiatry
Corcoran, CM, Kimhy, D, Stanford, A, Khan, S, Walsh, J, Thompson, J, Schobel, S, Harkavy-Friedman, J, Goetz, R, Colibazzi, T, Cressman, V, Malaspina, D (2008). Temporal association of cannabis use with symptoms in individuals at clinical high risk for psychosis. Schizophrenia Research
Di Forti, M, Iyegbe, C, Sallis, H, Kolliakou, A, Falcone, MA, Paparelli, A, Sirianni, M, La Cascia, C, Stilo, SA, Marques, TR, Handley, R, Mondelli, V, Dazzan, P, Pariante, C, David, AS, Morgan, C, Powell, J, Murray, RM (2012). Confirmation that the AKT1 (rs2494732) genotype influences the risk of psychosis in cannabis users. Biological Psychiatry
Di Forti, M, Morgan, C, Dazzan, P, Pariante, C, Mondelli, V, Marques, TR, Handley, R, Luzi, S, Russo, M, Paparelli, A, Butt, A, Stilo, SA, Wiffen, B, Powell, J, Murray, RM (2009). High-potency cannabis and the risk of psychosis. British Journal of Psychiatry
European Monitoring Centre for Drugs and Drug Addiction (EMCDDA) (2013). National Report 2012: United Kingdom. EMCDDA: Lisbon.
Fusar-Poli, P, Bonoldi, I, Yung, AR, Borgwardt, S, Kempton, MJ, Valmaggia, LR, Barale, F, Caverzasi, E, McGuire, PK (2012). Predicting psychosis: meta-analysis of transition outcomes in individuals at high clinical risk. Archives of General Psychiatry
Gage, SH, Zammit, S, Hickman, M (2013). Stronger evidence is needed before accepting that cannabis plays an important role in the aetiology of schizophrenia in the population. F1000 Medicine Reports
Gill, KE, Poe, L, Azimov, N, Ben-David, S, Vadhan, NP, Girgis, R, Moore, H, Cressman, V, Corcoran, CM (2013). Reasons for cannabis use among youths at ultra high risk for psychosis. Early Intervention in Psychiatry. Published online
. doi: 10.1111/eip.12112.
Gonzalez-Pinto, A, Alberich, S, Barbeito, S, Gutierrez, M, Vega, P, Ibanez, B, Haidar, MK, Vieta, E, Arango, C (2011). Cannabis and first-episode psychosis: different long-term outcomes depending on continued or discontinued use. Schizophrenia Bulletin
Grech, A, van Os, J, Jones, PB, Lewis, SW, Murray, RM (2005). Cannabis use and outcome of recent onset psychosis. European Psychiatry
Hall, W, Degenhardt, L (2000). Cannabis use and psychosis: a review of clinical and epidemiological evidence. Australian and New Zealand Journal of Psychiatry
Henquet, C, Krabbendam, L, Spauwen, J, Kaplan, C, Lieb, R, Wittchen, H-U, van Os, J (2005). Prospective cohort study of cannabis use, predisposition for psychosis, and psychotic symptoms in young people. BMJ
Hermann, D, Schneider, M (2012). Potential protective effects of cannabidiol on neuroanatomical alterations in cannabis users and psychosis: a critical review. Current Pharmaceutical Design
Jonsson, F, Freeman, J, Hinton, M, Towle, L, O'Donnell, J, Power, P (2004). Cannabis and psychosis: a clinical audit of the prevalence and persistence of cannabis use in first-episode psychosis patients attending the Lambeth Early Onset (LEO) service in London. Schizophrenia Research
70 (Suppl. 1), 72.
Konings, M, Henquet, C, Maharajh, HD, Hutchinson, G, van Os, J (2008). Early exposure to cannabis and risk for psychosis in young adolescents in Trinidad. Acta Psychiatrica Scandinavica
Kristensen, K, Cadenhead, KS (2007). Cannabis abuse and risk for psychosis in a prodromal sample. Psychiatry Research
Lappin, JM, Morgan, KD, Valmaggia, LR, Broome, MR, Woolley, JB, Johns, LC, Tabraham, P, Bramon, E, McGuire, PK (2007). Insight in individuals with an at risk mental state. Schizophrenia Research
Macleod, J, Oakes, R, Copello, A, Crome, I, Egger, M, Hickman, M, Oppenkowski, T, Stokes-Lampard, H, Davey Smith, G (2004). Psychological and social sequelae of cannabis and other illicit drug use by young people: a systematic review of longitudinal, general population studies. Lancet
Miller, P, Lawrie, SM, Hodges, A, Clafferty, R, Cosway, R, Johnstone, EC (2001). Genetic liability, illicit drug use, life stress and psychotic symptoms: preliminary findings from the Edinburgh Study of People at High Risk for Schizophrenia. Social Psychiatry and Psychiatric Epidemiology
Moore, THM, Zammit, S, Lingford-Hughes, A, Barnes, TRE, Jones, PB, Burke, M, Lewis, G (2007). Cannabis use and risk of psychotic or affective mental health outcomes: a systematic review. Lancet
Phillips, LJ, Curry, C, Yung, AR, Yuen, HP, Adlard, S, McGorry, PD (2002). Cannabis use is not associated with the development of psychosis in an ‘ultra’ high-risk group. Australian and New Zealand Journal of Psychiatry
Rapp, C, Bugra, H, Riecher-Rossler, A, Tamagni, C, Borgwardt, S (2012). Effects of cannabis use on human brain structure in psychosis: a systematic review combining in vivo structural neuroimaging and post mortem studies. Current Pharmaceutical Design
Rebgetz, S, Conus, P, Hides, L, Kavanagh, DJ, Cotton, S, Schimmelmann, BG, McGorry, PD, Lambert, M (2013). Predictors of substance use reduction in an epidemiological first-episode psychosis cohort. Early Intervention in Psychiatry. Published online
. doi: 10.1111/eip.12067.
Rocchetti, M, Crescini, A, Borgwardt, S, Caverzasi, E, Politi, P, Atakan, Z, Fusar-Poli, P (2013). Is cannabis neurotoxic for the healthy brain? A meta-analytical review of structural brain alterations in non-psychotic users. Psychiatry and Clinical Neurosciences
Rubino, T, Parolaro, D (2013). Cannabis abuse in adolescence and the risk of psychosis: a brief review of the preclinical evidence. Progress in Neuropsychopharmacology and Biological Psychiatry. Published online
. doi: 10.1016/j.pnpbp.2013.07.020.
Stefanis, NC, Dragovic, M, Power, BD, Jablensky, A, Castle, D, Morgan, VA (2013). Age at initiation of cannabis use predicts age at onset of psychosis: the 7- to 8-year trend. Schizophrenia Bulletin
Stone, JM, Fisher, HL, Major, B, Chisholm, B, Woolley, J, Lawrence, J, Rahaman, N, Joyce, J, Hinton, M, Johnson, S, Young, AH (2014). Cannabis use and first-episode psychosis: relationship with manic and psychotic symptoms, and with age at presentation. Psychological Medicine
Stowkowy, J, Addington, J (2013). Predictors of a clinical high risk status among individuals with a family history of psychosis. Schizophrenia Research
Tosato, S, Lasalvia, A, Bonetto, C, Mazzoncini, R, Cristofalo, D, De Santi, K, Bertani, M, Bissoli, S, Lazzarotto, L, Marrella, G, Lamonaca, D, Riolo, R, Gardellin, F, Urbani, A, Tansella, M, Ruggeri, M; PICOS-VENETO Group (2013). The impact of cannabis use on age of onset and clinical characteristics in first-episode psychotic patients. Data from the Psychosis Incident Cohort Outcome Study (PICOS). Journal of Psychiatric Research
Valmaggia, LR, Stahl, D, Yung, AR, Nelson, B, Fusar-Poli, P, McGorry, PD, McGuire, PK (2013). Negative psychotic symptoms and impaired role functioning predict transition outcomes in the at-risk mental state: a latent class cluster analysis study. Psychological Medicine
van der Meer, FJ, Velthorst, E, Meijer, CJ, Machielsen, MW, de Haan, L (2012). Cannabis use in patients at clinical high risk of psychosis: impact on prodromal symptoms and transition to psychosis. Current Pharmaceutical Design
van Nierop, M, Janssens, M; Genetic Risk and Outcome of Psychosis (GROUP) Investigators, Bruggeman, R, Cahn, W, de Haan, L, Kahn, RS, Meijer, CJ, Myin-Germeys, I, van Os, J, Wiersma, D (2013). Evidence that transition from health to psychotic disorder can be traced to semi-ubiquitous environmental effects operating against background genetic risk. PLOS ONE
van Os, J, Bak, M, Hanssen, M, Bijl, RV, de Graaf, R, Verdoux, H (2002). Cannabis use and psychosis: a longitudinal population-based study. American Journal of Epidemiology
van Winkel, R, Esquivel, G, Kenis, G, Wichers, M, Collip, D, Peerbooms, O, Rutten, B, Myin-Germeys, I, van Os, J (2010). Review: genome-wide findings in schizophrenia and the role of gene–environment interplay. CNS Neuroscience and Therapeutics
van Winkel, R; Genetic Risk and OUtcome of Psychosis (GROUP) Investigators (2011). Family-based analysis of genetic variation underlying psychosis-inducing effects of cannabis: sibling analysis and proband follow-up. Archives of General Psychiatry
Yung, AR, Phillips, LJ, McGorry, PD, McFarlane, CA, Francey, S, Harrigan, S, Patton, GC, Jackson, HJ (1998). Prediction of psychosis. A step towards indicated prevention of schizophrenia. British Journal of Psychiatry Supplement