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  • Print publication year: 2007
  • Online publication date: June 2012

Chapter 25 - Hunting the ghost: toward a neuroscience of consciousness

from Part II - The neuroscience of consciousness

Summary

This chapter focuses on two distinct, linguistically oriented approaches to language and consciousness taken by Ray Jackendoff and Wallace Chafe. Jackendoff identifies three basic levels of information processing. One can be conscious of both thoughts and sounds. Language provides evidence of several kinds that consciousness of thoughts has priority over consciousness of sounds in ordinary mental life. It enhances the power of thought in three ways: by allowing thought to be communicated, by making it possible to focus attention on selected aspects of thought, and by providing access to valuations of thought. Chafe distinguishes between immediate and displaced consciousness, the former engaged in direct perception and the latter in experiences that are recalled or imagined. The imagistic and the ideational components of consciousness are held to be central components of thought, as thought is ordinarily understood.

References

Allison. A. C., & Nunn, J. F. (1968). Effects of general anesthetics on microtubules. A possible mechanism of anesthesia. Lancet, 2, 1326–1329.
Alkire, M. T., Haier, R. J., Barker, S. J., Shah, N. K., Wu, J. C., & Kao, Y. J. (1995) Cerebral metabolism during propofol anesthesia in humans studied with positron emission tomography. Anesthesiology, 82, 393–400.
Alkire, M. T., Haier, R. J., & Fallon, J. H. (2000). Toward a unified theory of narcosis: Brain imaging evidence for a thalamocortical switch as the neurophysiologic basis of anesthetic-induced unconsciousness. Consciousness and Cognition, 9, 387–395.
Angel, A. (1991). The G. L. Brown lecture. Adventures in anaesthesia. Experimental Physiology, 76, 1–38.
Angel, A. (1993). Central neuronal pathways and the process of anaesthesia. British Journal of Anaesthesia, 71, 148–163.
Anis, N. A., Berry, S. C., Burton, N. R., & Lodge, D. (1983). The dissociative anaesthetics, ketamine and phencyclidine, selectively reduce excitation of central mammalian neurons by N-methyl-asparatate. British Journal of Pharmacology, 79, 565–575.
Antognini, J. F., Buonocore, M. H., Disbrow, E. A., & Carstens, E. (1997). Isoflurane anesthesia blunts cerebral responses to noxious and innocuous stimuli: A fMRI study. Life Sciences, 61, 349–354.
Aserinsky, E., & Kleitman, N. (1953). Regularly occurring periods of eye motility, and concomitant phenomena during sleep. Science, 118, 273–274.
Bachmann, T. (2000). Microgenetic approach to the conscious mind. Amsterdam: John Benjamins.
Bassetti, C., Vella, S., Donati, F., Wielapp, P., & Weder, B. (2000). SPECT during sleepwalking. Lancet, 356, 484–485.
Beck, D. M., Rees, G., Frith, C. D., & Lavie, N. (2001). Neural correlates of change detection and change blindness. Nature Neuroscience, 4, 645–650.
Blake, R., & Logothetis, N. K. (2002). Visual competition. Nature Reviews Neuroscience, 3, 13–21.
Block, N. (1995). On a confusion about a function of consciousness. Behavioral and Brain Sciences, 18, 227–287.
Block, N. (2005). Two neural correlates of consciousness. Trends in Cognitive Sciences, 9, 46–52.
Bodis-Wollner, I., Atkin, A., Raab, E., & Wolkstein, M. (1977). Visual association cortex and vision in man: Pattern-evoked occipital potentials in a blind boy. Science, 198, 629–631.
Bogen, J. E. (1995). On the neurophysiology of consciousness: Ⅰ. An overview. Consciousness and Cognition, 4, 52–62.
Boly, M., Faymonville, M.-E., Peigneux, P. et al. (2004). Auditory processing in severely brain injured patients: differences between the minimally conscious state and the persistent vegetative state. Archives of Neurology, 61, 233–238.
Bonhomme, V., Fiset, P., Meuret, P., Backman, S., Plourde, G., Paus, T., Bushnell, M. C., & Evans, A. C. (2001). Propofol anesthesia and cerebral blood flow changes elicited by vibrotactile stimulation: A positron emission tomography study. Journal of Neurophysiology, 85, 1299–1308.
Bonnebakker, A. E., Bonke, B., Klein, J., Wolters, G., Stijnen, T., Passchier, J., & Merikle, P. M. (1996). Information processing during general anesthesia: Evidence for unconscious memory. Memory and Cognition, 24, 766–776.
Born, A. P., Law, I., Lund, T. E., Rostrup, E., Hanson, L. G., Wildschi⊘dtz, G., Lou, H. C., & Paulson, O. B. (2002). Cortical deactivation induced by visual stimulation in human slow-wave sleep. Neuroimage, 17, 1325–1335.
Bosinelli, M. (1995). Mind and consciousness during sleep. Behavioral Brain Research, 69, 195–201.
Braun, A. R., Balkin, T. J., Wesensten, N. J., Carson, R. E., Varga, M., Baldwin, P., Selbie, S., Belenky, G., & Herscovitch, P. (1997). Regional cerebral blood flow throughout the sleep-wake cycle. Brain, 120, 1173–1197.
Braun, A. R., Balkin, T. J., Wesensten, N. J., Gwadry, F., Carson, R. E., Varga, M., Baldwin, P., Belenky, G., & Herscovitch, P. (1998). Dissociated pattern of activity in visual cortices and their projections during human rapid eye movement sleep. Science, 279, 91–95.
Broadbent, D. E. (1974). Division of function and integration of behavior. In F. O. Schmitt & F. G. Worden (Eds.), The neurosciences third study program (pp. 31–42). Cambridge, MA: MIT Press.
Broughton, R. et al. (1994). Homicidal somnambulism: A case report. Sleep, 17, 253–264.
Brown, R. J., & Norcia, A. M. (1997). A method for investigating binocular rivalry in real-time with the steady-state VEP. Vision Research, 37, 2401–2408.
Bruyer, R., Laterre, C., Seron, X., Feyereisen, P., Srypstein, E., Pierrard, E., & Rectern, D. (1983). A case of prosopagnosia with some preserved covert remembrance of familiar faces. Brain and Cognition, 2, 257–284.
Cariani, P. (2000). Anesthesia, neural information processing, and conscious awareness. Consciousness and Cognition, 9, 387–395.
Carrasco, M., Ling, S., & Read, S. (2004). Attention alters appearance. Nature Neuroscience, 7, 208–209.
Cavallero, C., Cicogna, P., Natale, V., Occhionero, M., & Zito, A (1992). Slow wave sleep dreaming. Sleep, 15, 562–566.
Chun, M. M., & Potter, M. C. (1995). A two-stage model for multiple target detection in rapid serial visual presentation. Journal of Expermental Psychology: Human Perception and Performance, 21, 109–127.
Cicogna, P., Natale, V., Occhionero, M., & Bosinelli, M. (2000). Slow wave and REM sleep mentation. Sleep Research Online, 3, 67–72.
Claparède, E. (1911). Recognition et moité. Archives de Psychologie, 11, 79–90.
Cohen, N. J., & Corkin, S. (1981). The amnesic patient H. M.: Learning and retention of a cognitive skill. Neuroscience Abstracts, 7, 235.
Corbetta, M., ShulmanG. L. (2002). Control of goal-directed and stimulus-driven attention in the brain. Nature Reviews Neuroscience, 3, 201–215.
Cowey, A., & Stoerig, P. (1995). Blindsight in monkeys. Nature, 373, 247–249.
Crick, F., & Koch, C. (1995). Are we aware of neural activity in primary visual cortex? Nature, 375, 121–123.
Czisch, M., Wetter, T. C., Kaufmann, C., Pollmächer, T., Holsboer, F., & Auer, D. P. (2002). Altered processing of acoustic stimuli during sleep: Reduced auditory activation and visual deactivation detected by a combined fMRI/EEG study. Neuroimage, 16, 251–258.
Dement, W., & Kleitman, N. (1957). Cyclic variations in EEG during sleep and their relation to eye movements, body motility, and dreaming. Electroencephalography and Clinical Neurophysiology, 9, 673–690.
Desimone, R., & Duncan, J. (1995). Neural mechanisms of selective attention. Annual Review of Neuroscience, 18, 193–222.
Fiset, P., Paus, T., Daloze, T., Plourde, G., Meuret, P., Bonhomme, V., Haji-Ali, N., Backman, S. B., & Evans, A. C. (1999). Brain mechanisms of propofol-induced loss of consciousness in humans: A positron emission tomography study. Journal of Neuroscience, 19, 5506–5513.
Flohr, H. (1995). An information processing theory of anaesthesia. Neuropsychologia, 33, 1169–1180.
Flohr, H., Glade, U., & Motzko, D., (1998). The role of the NMDA synapse in general anesthesia. Toxicology Letters, 100–101, 23–29.
Foulkes, D., & Schmidt, M. (1983). Temporal sequence and unit composition in dream reports from different stages of sleep. Sleep, 6, 265–80.
Foulkes, W. D. (1962). Dream reports from different stages of sleep. Journal of Abnormal and Social Psychology, 65, 14–25.
Franks, N. P., & Lieb, W. R. (1994). Molecular and cellular mechanisms of general anesthesia. Nature, 367, 607–614.
Franks, N. P., & Lieb, W. R. (1996). An anesthetic-sensitive superfamily of neurotransmitter-gated ion channels. Journal of Clinical Anesthesia, 8, S3–S7.
Giacino, J. T., Ashwal, S., Childs, N., et al. (2002). The minimally conscious state. Definition and diagnostic criteria. Neurology, 58, 349–353.
Goebel, R., Muckli, L., Zanella, F. E., Singer, W., & Stoerig, P. (2001). Sustained extrastriate cortical activation without visual awareness revealed by fMRI studies of hemianopic patients. Vision Research, 41, 1459–1474.
Grosbras, H., & Paus, T. (2003). Transcranial magnetic stimulation of the human frontal eye field facilitates visual awareness. European Journal of Neuroscience, 18, 3121–3126.
Hameroff, S. (1998). Anesthesia, consciousness and hydrophobic pockets – a unitary quantum hypothesis of anesthetic action. Toxicology Letters, 100/101, 31–39.
Hartmann, E. (1983). Two case reports: Night terrors with sleepwalking – a potentially lethal disorder. Journal of Nervous and Mental Disease, 171, 503–505.
Heywood, C. A., Cowey, A., & Newcombe, F. (1991). Chromatic discrimination in a cortically colour blind observer. European Journal of Neuroscience, 3, 802–812.
Hobson, J. A. (1989). Sleep. New York: Scientific American Library.
Hobson, J. A., Goldfrank, F., & Snyder, F. (1965). Respiration and mental activity during sleep. Journal of Psychiatric Research, 3, 79–90.
Hochstein, S., & Ahissar, M. (2002). View from the top: Hierarchies and reverse hierarchies in the visual system. Neuron, 36, 791–804.
Horton, J. C., & Hoyt, W. F. (1991). Quadrantic visual field defects. A hallmark of lesions in extrastriate (V2/V3) cortex. Brain, 114, 1703–1718.
Hubel, D. H., & Wiesel, T. N. (1968). Receptive fields and functional architecture of monkey striate cortex. Journal of Physiology (London), 195, 215–243.
Jasper, H. H. (1949). Diffuse projection systems: The integrative action of the thalamic reticular system. Electroencephalography and Clinical Neurophysiology, 1, 405–420.
Jasper, H. H. (1998). Sensory information and conscious experience. In H. H. Jasper, L. Descarries, V. F. Castellucci, & S. Rossignol (Eds), Consciousness at the frontiers of neuroscience. Advances in neurology (Vol. 77, pp. 33–48). Philadelphia, New York: Lippincott-Raven Publishers.
Jasper, H. H., & Droogleever-Fortuyn, J. (1947). Experimental studies of the functional anatomy of petit mal epilepsy. Proceedings of the association for research in nervous & mental disease, 26, 272–298.
Jennett, B. (2002). The vegetative state. Journal of Neurology, Neurosurgery, and Psychiatry, 73, 355–356.
Jennett, B., & Plum, F. (1972, April 1). Persistent vegetative state after brain damage. Lancet, 734–737.
Jouvet, M., & Delorme, F. (1965). Locus coeruleus et sommeil paradoxical. Societé de Biologie, 159, 895–899.
Jones, E. G. (1998). A new view of specific and nonspecific thalamocortical connections. In H. H. Jasper, L. Descarries, V. F. Castellucci, & S. Rossignol (Eds), Consciousness at the frontiers of neuroscience. Advances in neurology (Vol. 77, pp. 49–71). Philadelphia: Lippincott-Raven Publishers.
Kajimura, N., Uchiyama, M., Takayama, Y., Uchida, S., Uema, T., Kato, M., et al. (1999). Activity of midbrain reticular formation and neocortex during the progression of human non-rapid eye movement sleep. Journal of Neuroscience, 19, 10065–10073.
Kales, A., Hoedemaker, F. S., Jacobson, A., Kales, J. D., Paulson, M. J., & Wilson, T. E. (1967). Mentation during sleep: REM and NREM recall reports. Perceptual and Motor Skills, 24, 555–60.
Kassubek, J., Juengling, F. D., Els, T., et al. (2003). Activation of residual cortical network during painful stimulation in long-term postanoxic vegetative state: A 15O-H2O PET study. Journal of Neurological.Science, 212, 85–91.
Kastner, S., Pinsk, M. A., De Weerd, P., Desimone, R., & Ungerleider, L. G. (1999). Increased activity in human visual cortex during directed attention in the absence of visual stimulation. Neuron, 22, 751–761.
Kleitman, N. (1963). Sleep and wakefulness. Chicago: University of Chicago Press.
Koestler, A. (1968). Das Gespenst in der Maschine. Wien, Zürich, München: Molden:
Köhler, S., & Moscovitch, M. (1997) Unconscious visual processing in neuropsychological syndromes: A survey of the literature and evaluation of models of consciousness. In M. D. Rugg (Ed.), Cognitive neuroscience (pp. 305–373). Cambridge, MA: MIT Press.
Kreiman, G., Fried, I., & Koch, C. (2002) Single-neuron correlates of subjective vision in the human temporal lobe. Proceedings of the National Academy of Science USA, 99, 8378–8383.
Lamme, V. L. (2001). Blindsight: The role of feedforward and feedback corticocortical connections. Acta Psychologica (Amsterdam), 107, 209–228.
Laureys, S., Faymonville, M.-E., Luxen, A., Lamy, M., Franck, G., & Maquet, P. (2000a). Restoration of thalamocortical connectivity after recovery from persistent vegetative state. Lancet, 355, 1790–1791.
Laureys, S., FaymonvilleM.-E., Degueldre, C., et al. (2000b). Auditory processing in the vegetative state. Brain, 123, 1589–1601.
Laureys, S., Faymonville, M.-E., Peigneux, P., et al. (2002a). Cortical processing of noxious somatosensory stimuli in the persistent vegetative state. Neuroimage, 17, 732–741.
Laureys, S., Antoine, S., Boly, M., et al. (2002b). Brain function in the vegetative state. Acta Neurologica (Belgium), 102, 177–185.
Laureys, S., OwenmA. M., & Schiff, N. D. (2004). Brain function in coma, vegetative state, and related disorders. Lancet Neurology, 3, 537–546.
Leopold, D. A., & Logothetis, N. K. (1999). Multistable phenomena: Changing views in perception. Trends in Cognitive Sciences, 3, 254–264.
Leopold, D. A., Plettenberg, H. K., & Logothetis, N. K. (2003). Visual processing in the ketamine-anesthetized monkey. Optokinetic and blood oxygenation-dependent responses. Experimental Brain Research, 143, 359–372.
Levy, D. E., Sidtis, J. J., Rottenberg, D. A., Jarden, J. O., et al. (1987). Differences in cerebral blood flow and glucose utilization in vegetative versus locked-in patients. Annals of Neurology, 22, 673–682.
Logothetis, N. K. (1998). Single units and conscious vision. Philosophical Transactions of the Royal Society, London B, 353, 1801–1818.
Logothetis, N. K., Guggenberger, H., Peled, S., & Pauls, J. (1999). Functional imaging of the monkey brain. Nature Neuroscience, 2, 555–562.
Logothetis, N. K., & Schall, J. D. (1989). Neuronal correlates of subjective visual perception. Science, 245, 761–763.
Lumer, E. D., Friston, K. J., & Rees, G. (1998) Neural correlates of perceptual rivalry in the human brain. Science, 280, 1930–1934.
Madler, C., Keller, I., Schwender, D., & Pöppel, E. (1991). Sensory information processing during general anaesthesia: Effect of isoflurane on auditory evoked neuronal oscillations. British Journal of Anaesthesiology, 66, 81–87.
Madler, C., & Pöppel, E. (1987). Auditory evoked potentials indicate the loss of neuronal oscillations during general anaesthesia. Naturwissenschaften, 74, 42–43.
Mahowald, M. W., & Schenck, C. H. (2001). Evolving concepts of human state dissociation. Archives Italienne de Biologie, 139, 269–300.
Maquet, P. (2000). Functional neuroimaging of normal human sleep by positron emission tomography. Journal of Sleep Research, 9, 207–231.
Maquet, P., Péters, J.-M., Aerts, J., Delfiore, G., Degueldre, G., Luxen, A., & Franck, G. (1996). Functional neuroanatomy of human rapid-eye-movement sleep and dreaming. Nature, 383, 163–166.
Marois, R., Yi, D.-J., & Chun, M. M. (2004). The neural fate of consciously perceived and missed events in the attentional blink. Neuron, 41, 465–472.
Martin, E., Thiel, T., Joeri, P., Loenneker, T., Ekatodramis, E., Huisman, T., Hennig, J., & Marcar, V. L. (2000). Effect of pentobarbital on visual processing in man. Human Brain Mapping, 10, 132–139.
Mashour, G. A. (2004). Consciousness unbound. Toward a paradigm of general anesthesia. Anesthesiology, 100, 428–433.
Meadows, J. C. (1974). Disturbed perception of colours associated with localized cerebral lesions. Brain, 97, 615–632.
Merikle, P. M., & Daneman, M. (1996). Memory for unconsciously perceived events; evidence from anesthetized patients. Consciousness and Cognition, 5, 542–561.
Milner, A. D., & Goodale, M. A. (1995). The visual brain in action. New York: Oxford University Press.
Milner, B., Corkin, S., & Teuber, H.-L. (1968). Further analysis of the hippocampal amnesic syndrome: 14-year follow-up study of H. M. Neuropsychologia, 6, 215–234.
Moore, T., & Armstrong, K. M. (2003). Selective gating of visual signals by microstimulation of frontal cortex. Nature, 421, 370–373.
Morruzzi, G., & Magoun, W. (1949). Brain stem reticular formation and activation of the EEG. Electroencephalography and Clinical Neurophysiology, 1, 455–473.
Mozaz Garde, M., & Cowey, A. (2000). ‘Deaf hearing’: Unacknowledged detection of auditory stimuli in a patient with cerebral deafness. Cortex, 36, 71–80.
Munk, M. H. J., Roelfsema, P. R., König, P., Engel, A. K., & Singer, W. (1996). Role of reticular activation in the modulation of intracortical synchronization. Science, 272, 271–274.
Nacchache, L., Blandin, E., & Dehaene, S. (2002). Unconscious masked priming depends on temporal attention. Psychological Science, 13, 416–424.
Nielsen, T. A. (2000) A review of mentation in REM and NREM sleep: “covert” REM sleep as a possible reconciliation of tow opposing models. Behavioral and Brain Sciences, 23, 793–1121.
Nofzinger, E. A., Mintun, N. A., Wiseman, M., Kupfer, D. J., & Moore, R. Y. (1997). Forebrain activation in REM-sleep: An FDG PET study. Brain Research, 770, 192–201.
Paillard, J., Michel, F., & Stemach, G. (1983). Localization without content: A tactile analogue of blindsight. Archives of Neurology, 40, 548–551.
Pasik, P., & Pasik, T. (1982). Visual function in monkeys after total removal of visual cerebral cortex. Contributions to Sensory Physiology, 7, 147–200.
Pessoa, L., & Ungerleider, L. G. (2004). Neural correlates of change detection and change blindness in a working memory task. Cerebral Cortex, 14, 511–520.
Pins, D., & ffytche, D. (2003). The neural correlates of conscious vision. Cerebral Cortex, 13, 461–474.
Plourde, G., Baribeau, J., & Bonhomme, V. (1997). Ketamine increases the amplitude of the 40-Hz auditory steady-state response in humans. British Journal of Anaesthesia, 78, 524–529.
Plum, F., & Posner, J. B. (1982). The diagnosis of stupor and coma. Philadephia: F. A. Davis.
Plum, F., Schiff, N., Ribary, U., & Llínas, R. (1998). Coordinated expression in chronically unconscious persons. Philosophical Transactions of the Royal Society, London B: Biological Science, 353, 1929–1933.
Pöppel, E. (1997). A hierarchical model of time perception. Trends in Cognitive Sciences, 1, 56–61.
Purpura, K. P., & Schiff, N. D. (1997). The thalamic intralaminar nuclei: A role in visual awareness. The Neuroscientist, 3, 8–15.
Rechtschaffen, A., & Kales, A. A. (1968). A manual of standardized terminology, techniques and scoring system for sleep stages of human subjects. Bethesda, MD: National Institute of Neurological Diseases and Blindness.
Rees, G., Wojciulik, E., Clarke, K., Husain, M., Frith, C., & Driver, J. (2000). Unconscious activation of visual cortex in the damaged right hemisphere of a parietal patient with extinction. Brain, 123, 1624–1633.
Rensink, R. A. (2000). Seeing, sensing, scrutinizing. Vision Research, 40, 1469–1487.
Ricci, C., & Blundo, C. (1990). Perception of ambiguous figures after focal brain lesions. Neuropsychologia, 28, 1163–1173.
Riddoch, G. (1917). Dissociations of visual perception due to occipital injuries, with especial reference to appreciation of movement. Brain, 40, 15–57.
Rosenbaum, R. S., Köhler, S., Schacter, D. L., Moscovitch, M., Westmacott, R., Black, S. E., Gao, F., & Tulving, E. (2004). The case of K. C.: Contributions of a memory-impaired person to memory theory. Neuropsychologia, 43, 989–1021.
Rosenthal, D. (1986). Two concepts of consciousness. Philosophical Studies, 94, 329–359.
Rovee-Collier, C., Hayne, H., & Colombo, M. (2001). The development of implicit and explicit memory. Advances in consciousness research 24. Amsterdam: John Benjamins.
Sahraie, A., Weiskrantz, L., Barbur, J. L., Simmons, A., Williams, S., & Brammer, M. J. (1997). Pattern of neuronal activity associated with conscious and unconscious processing of visual signals. Proceedings of the National Academy of Sciences USA, 94, 9406–9411.
Schacter, D. L., Dobbins, I. G., & Schnyer, D. M. (2004). Specificity of priming: A cognitive neuroscience perspective. Nature Reviews Neuroscience, 5, 853–862.
Schenck, C. H., Bundlie, S. R., Ettinger, M. G., & Mahowald, M. W. (1986). Chronic behavioral disorders of human REM sleep: A new category of parasomnia. Sleep, 9, 293–308.
Schenck, C. H., & Mahowald, M. W. (1994). Review of nocturnal sleep-related eating disorders. International Journal of Eating Disorders, 15, 343–356.
Schenck, C. H., Milner, D. M., Hurwitz, T. D., Bundlie, S. R., & Mahowald, M. W. (1989). Dissociative disorders presenting as somnambulism: Polysomnographic, video and clinical documentation (8 cases). Dissociation, 2, 194–204.
Schiff, N. D., Ribary, U., Moreno, D. R., Beattie, B., et al. (2002). Residual cerebral activity and behavioural fragments can remain in the persistently vegetative brain. Brain, 125, 1210–1234.
Shulman, G., Fiez, J., Corbetta, M., Buckner, R. L., Miezin, F. M., Raichle, M. E., & Petersen, S. E. (1997). Common blood flow changes across visual tasks: Ⅱ. Decreases in cerebral cortex. Journal of Cognitive Neuroscience, 9, 648–663.
Simons, D. J., & Levin, D. T. (1997). Change blindness. Trends in Cognitive Sciences, 1, 261–267.
Steriade, M. (2000). Corticothalamic resonance, states of vigilance and mentation. Neuroscience, 101, 243–276.
Stoerig, P. (1996). Varieties of vision: From blind processing to conscious recognition. Trends in Neurosciences, 19, 401–406.
Stoerig, P. (1999). Blindsight. In R. Wilson & F. Keil (Eds.), The MIT encyclopedia of the cognitive sciences (pp. 88–90). Cambridge, MA: MIT Press.
Stoerig, P. (2002). Neural correlates of consciousness as state and trait. In L. Nadel (Ed.), Encyclopedia of cognitive neuroscience (pp. 233–240). London: Macmillan Press.
Stoerig, P., & Barth, E. (2001). Low-level phenomenal vision despite unilateral destruction of primary visual cortex. Consciousness and Cognition, 10, 574–587.
Stoerig, P., & Cowey, A. (1993). Blindsight and perceptual consciousness: neuropsychological aspects of striate cortical function. In B. Gulyas, D. Ottoson, & P. Roland (Eds.), Functional organisation of the human visual cortex (pp. 181–193). Oxford, New York: Pergamon Press.
Stoerig, P., & Cowey, A. (1997). Blindsight in man and monkey. Brain, 120, 535–559.
Stoerig, P., Zontanou, A., & Cowey, A. (2002). Aware or unaware? Assessment of cortical blindness in four men and a monkey. Cerebral Cortex, 12, 565–574.
Thompson, K. G., & Schall, J. D. (2000). Antecedents and correlates of visual detection and awareness in macaque prefrontal cortex. Vision Research, 40, 1523–1538.
Tononi, G., Srinivasan, R., Russell, D. P., & Edelman, G. M. (1998). Investigating neural correlates of conscious perception by frequency-tagged neuromagnetic responses. Proceedings of the National Academy of Science USA, 95, 3198–3203.
Wagner, U., Gais, S., Haider, H., Verleger, R., & Born, J. (2004). Sleep inspires insight. Nature, 427, 352–355.
Warrington, E. K., & Weiskrantz, L. (1968). New method of testing long-term retention with special reference to amnesic patients. Nature, 217, 972–972.
Weiskrantz, L. (1986). Blindsight: A case study and implications. Oxford: Oxford University Press.
Weiskrantz, L., Warrington, E. K., Sanders, M. D., & Marshall, J. (1974). Visual capacity in the hemianopic field following a restricted cortical ablation. Brain, 97, 709–728.
White, N. S., & Alkire, M. T. (2003). Impaired thalamocortical connectivity in humans during general-anesthetic-induced unconsciousness. Neuroimage, 19, 402–411.
Yamada, T., Kameyama, S., Fuchigami, Y., Nakazumi, Y., Dickins, Q. S., & Kimura, S. (1988). Changes of short latency somatosensory potential in sleep. Electroencephalography and Clinical Neurophysiology, 70, 126–136.
Zeki, S. (1990). A century of cerebral achromatopsia. Brain, 113, 1721–1777.
Zeki, S. (1991). Cerebral akinetopsia. Brain, 114, 811–824.
Zeki, S. (2001). Localization and globilization in conscious vision. Annual Review of Neuroscience, 24, 57–86.
Zeman, A. (1997). Persistent vegetative state. Lancet, 350, 795–798.