Cognitive and emotional processes during dreaming: a neuroimaging view.

[en] Dream is a state of consciousness characterized by internally-generated sensory, cognitive and emotional experiences occurring during sleep. Dream reports tend to be particularly abundant, with complex, emotional, and perceptually vivid experiences after awakenings from rapid eye movement (REM) sleep. This is why our current knowledge of the cerebral correlates of dreaming, mainly derives from studies of REM sleep. Neuroimaging results show that REM sleep is characterized by a specific pattern of regional brain activity. We demonstrate that this heterogeneous distribution of brain activity during sleep explains many typical features in dreams. Reciprocally, specific dream characteristics suggest the activation of selective brain regions during sleep. Such an integration of neuroimaging data of human sleep, mental imagery, and the content of dreams is critical for current models of dreaming; it also provides neurobiological support for an implication of sleep and dreaming in some important functions such as emotional regulation.

Disciplines :

Neurology

Author, co-author :

Desseilles, Martin ; Université de Liège - ULiège > Département des sciences cliniques > Psychiatrie et psychologie médicale

Dang Vu, Thien Thanh ; Université de Liège - ULiège > Département des sciences cliniques > Neurologie

Sterpenich, Virginie

Schwartz, Sophie

Language :

English

Title :

Cognitive and emotional processes during dreaming: a neuroimaging view.

Publication date :

2011

Journal title :

Consciousness and Cognition

ISSN :

1053-8100

eISSN :

1090-2376

Publisher :

Academic Press, San Diego, United States - California

Volume :

Issue :

Pages :

998-1008

Peer reviewed :

Peer Reviewed verified by ORBi

Commentary :

Available on ORBi :

since 06 December 2011

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Bibliography

Aserinsky E., Kleitman N. Regularly occurring periods of eye motility, and concomitant phenomena, during sleep. Science 1953, 118(3062):273-274.
Atienza M., Cantero J.L., Escera C. Auditory information processing during human sleep as revealed by event-related brain potentials. Clinical Neurophysiology 2001, 112(11):2031-2045.
Barbera J. Sleep and dreaming in Greek and Roman philosophy. Sleep Medicine 2008, 9(8):906-910.
Bertini M., De Gennaro L., Ferrara M., Curcio G., Romei V., Fratello F., et al. Reduction of transcallosal inhibition upon awakening from REM sleep in humans as assessed by transcranial magnetic stimulation. Sleep 2004, 27(5):875-882.
Brass M., Derrfuss J., Forstmann B., von Cramon D.Y. The role of the inferior frontal junction area in cognitive control. Trends in Cognitive Sciences 2005, 9(7):314-316.
Braun A.R., Balkin T.J., Wesensten N.J., Gwadry F., Carson R.E., Varga M., et al. Dissociated pattern of activity in visual cortices and their projections during human rapid eye movement sleep. Science 1998, 279(5347):91-95.
Braun A.R., Balkin T.J., Wesenten N.J., Carson R.E., Varga M., Baldwin P., et al. Regional cerebral blood flow throughout the sleep-wake cycle. An H2(15)O PET study. Brain 1997, 120(Pt 7):1173-1197.
Burton S.A., Harsh J.R., Badia P. Cognitive activity in sleep and responsiveness to external stimuli. Sleep 1988, 11(1):61-68.
Cabeza R., Nyberg L. Neural bases of learning and memory: Functional neuroimaging evidence. Current Opinion in Neurology 2000, 13(4):415-421.
Calkins M.W. Statistics of dreams. American Journal of Psychology 1893, 5:311-343.
Callaway C.W., Lydic R., Baghdoyan H.A., Hobson J.A. Pontogeniculooccipital waves: Spontaneous visual system activity during rapid eye movement sleep. Cellular and Molecular Neurobiology 1987, 7(2):105-149.
Cartwright R., Agargun M.Y., Kirkby J., Friedman J.K. Relation of dreams to waking concerns. Psychiatry Research 2006, 141(3):261-270.
Cartwright R.D., Kravitz H.M., Eastman C.I., Wood E. REM latency and the recovery from depression: getting over divorce. American Journal of Psychiatry 1991, 148(11):1530-1535.
Cartwright R.D., Lloyd S., Knight S., Trenholme I. Broken dreams: A study of the effects of divorce and depression on dream content. Psychiatry 1984, 47(3):251-259.
Cartwright R., Luten A., Young M., Mercer P., Bears M. Role of REM sleep and dream affect in overnight mood regulation: A study of normal volunteers. Psychiatry Research 1998, 81(1):1-8.
Cavallero C., Cicogna P., Natale V., Occhionero M., et al. Slow wave sleep dreaming. Sleep 1992, 15(6):562-566.
Cavanna A.E., Trimble M.R. The precuneus: A review of its functional anatomy and behavioural correlates. Brain 2006, 129(Pt 3):564-583.
Cicogna P.C., Bosinelli M. Consciousness during dreams. Consciousness and Cognition 2001, 10(1):26-41.
Cipolli C., Fagioli I., Mazzetti M., Tuozzi G. Incorporation of presleep stimuli into dream contents: Evidence for a consolidation effect on declarative knowledge during REM sleep?. Journal of Sleep Research 2004, 13(4):317-326.
Corbetta M., Shulman G.L. Control of goal-directed and stimulus-driven attention in the brain. Nature Reviews Neuroscience 2002, 3(3):201-215.
Crick F., Mitchison G. The function of dream sleep. Nature 1983, 304(5922):111-114.
Crick F., Mitchison G. REM sleep and neural nets. Behavioural Brain Research 1995, 69(1-2):147-155.
Czisch M., Wetter T.C., Kaufmann C., Pollmacher T., Holsboer F., Auer D.P. Altered processing of acoustic stimuli during sleep: Reduced auditory activation and visual deactivation detected by a combined fMRI/EEG study. Neuroimage 2002, 16(1):251-258.
Dang-Vu T.T., Desseilles M., Peigneux P., Maquet P. A role for sleep in brain plasticity. Pediatric Rehabilitation 2006, 9(2):98-118.
Daselaar S.M., Porat Y., Huijbers W., Pennartz C.M. Modality-specific and modality-independent components of the human imagery system. Neuroimage 2010, 52(2):677-685.
Datta S. Neuronal activity in the peribrachial area: Relationship to behavioral state control. Neuroscience and Biobehavioral Reviews 1995, 19(1):67-84.
Datta S. PGO wave generation: Mechanism and functional significance. Rapid eye movement sleep 1999, 91-106. Narosa Publishing House, New Delhi. B.N. Mallick, S. Inoue (Eds.).
Delboeuf J.R.L. Le sommeil et les rêves et autres textes 1885/1993, Fayard, Paris.
Dement W., Kleitman N. Cyclic variations in EEG during sleep and their relation to eye movements, body motility, and dreaming. Electroencephalography and Clinical Neurophysiology 1957, 9(4):673-690.
Diekelmann S., Born J. The memory function of sleep. Nature Reviews Neuroscience 2010, 11(2):114-126.
Farrer C., Franck N., Georgieff N., Frith C.D., Decety J., Jeannerod M. Modulating the experience of agency: A positron emission tomography study. Neuroimage 2003, 18(2):324-333.
Fell J., Fernandez G., Lutz M.T., Kockelmann E., Burr W., Schaller C., et al. Rhinal-hippocampal connectivity determines memory formation during sleep. Brain 2006, 129(Pt 1):108-114.
Ffytche D.H., Zeki S. Brain activity related to the perception of illusory contours. Neuroimage 1996, 3(2):104-108.
Fosse M.J., Fosse R., Hobson J.A., Stickgold R.J. Dreaming and episodic memory: A functional dissociation?. Journal of Cognitive Neuroscience 2003, 15(1):1-9.
Fosse R., Stickgold R., Hobson J.A. Brain-mind states: Reciprocal variation in thoughts and hallucinations. Psychological Science 2001, 12(1):30-36.
Fosse R., Stickgold R., Hobson J.A. Thinking and hallucinating: Reciprocal changes in sleep. Psychophysiology 2004, 41(2):298-305.
Foulkes D. The psychology of sleep 1966, Charles Scribner's Sons, New York.
Foulkes D. Dream research: 1953-1993. Sleep 1996, 19(8):609-624.
Frank M.G., Benington J.H. The role of sleep in memory consolidation and brain plasticity: Dream or reality?. Neuroscientist 2006, 12(6):477-488.
Franklin M.S., Zyphur M.J. The role of dreams in the evolution of the human mind. Evolutionary Psychology 2005, 3:59-78.
Freud S. The interpretation of dreams (J. Strachey, Trans.) 1955/1900, Basic Books, New York.
Frith U., Frith C.D. Development and neurophysiology of mentalizing. Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 2003, 358(1431):459-473.
Fu J., Li P., Ouyang X., Gu C., Song Z., Gao J., et al. Rapid eye movement sleep deprivation selectively impairs recall of fear extinction in hippocampus-independent tasks in rats. Neuroscience 2007, 144(4):1186-1192.
Greenberg R., Pearlman C., Fingar R., Kantrowitz J., Kawliche S. The effects of dream deprivation: Implications for a theory of the psychological function of dreaming. British Journal of Medical Psychology 1970, 43(1):1-11.
Hall C.S. The meaning of dreams 1953/1966, McGraw-Hill, New York.
Hall C.S., Van De Castle R.L. The content analysis of dreams 1966, Appleton-Century-Crofts, New York.
Hervey de Saint-Denys M.-J.-L. Les Rêves et les moyens de les diriger 1867/1977, Editions D'Aujourd'hui, Paris.
Hirsch J., DeLaPaz R.L., Relkin N.R., Victor J., Kim K., Li T., et al. Illusory contours activate specific regions in human visual cortex: Evidence from functional magnetic resonance imaging. Proceedings of the National Academy of Sciences of the United States of America 1995, 92(14):6469-6473.
Hobson J.A., McCarley R.W. The brain as a dream state generator: An activation-synthesis hypothesis of the dream process. American Journal of Psychiatry 1977, 134(12):1335-1348.
Hobson J.A., Pace-Schott E.F., Stickgold R. Dreaming and the brain: Toward a cognitive neuroscience of conscious states. Behavioral and Brain Sciences 2000, 23(6):793-842. (discussion 904-1121).
Hobson J.A., Stickgold R., Pace-Schott E.F. The neuropsychology of REM sleep dreaming. NeuroReport 1998, 9(3):R1-14.
Hu P., Stylos-Allan M., Walker M.P. Sleep facilitates consolidation of emotional declarative memory. Psychological Science 2006, 17(10):891-898.
Inoue S., Saha U., Musha T. Spatio-temporal distribution of neuronal activities and REM sleep. Rapid eye movement sleep 1999, 214-230. Narosa Publishing House, New Delhi. B.N. Mallick, S. Inoue (Eds.).
Johnson M.K., Kahan T.L., Raye C.L. Dreams and reality monitoring. Journal of Experimental Psychology: General 1984, 113(3):329-344.
Jones B.E. Paradoxical sleep and its chemical/structural substrates in the brain. Neuroscience 1991, 40(3):637-656.
Jouvet M. Paradoxical sleep mechanisms. Sleep 1994, 17(Suppl. 8):S77-83.
Jouvet M. Paradoxical sleep as a programming system. Journal of Sleep Research 1998, 7(Suppl. 1):1-5.
Kahn D., Hobson J.A. State-dependent thinking: A comparison of waking and dreaming thought. Consciousness and Cognition 2005, 14(3):429-438.
Kosslyn S.M., Thompson W.L. When is early visual cortex activated during visual mental imagery?. Psychological Bulletin 2003, 129(5):723-746.
Kruse N.W. The process of Aristotelian Catharsis: A reidentification. Theatre Journal 1979, 31(2):162-171.
Lavie P., Hobson J.A. Origin of dreams: Anticipation of modern theories in the philosophy and physiology of the eighteenth and nineteenth centuries. Psychological Bulletin 1986, 100(2):229-240.
Llinas R., Ribary U. Coherent 40-Hz oscillation characterizes dream state in humans. Proceedings of the National Academy of Sciences of the United States of America 1993, 90(5):2078-2081.
Macario, M. M. A. (1857/1978). Du sommeil, des rêves et du somnambulisme dans l'état de santé et de maladie. Nendeln, Liechtenstein: Krans Reprint.
Madsen P.L., Holm S., Vorstrup S., Friberg L., Lassen N.A., Wildschiodtz G. Human regional cerebral blood flow during rapid-eye-movement sleep. Journal of Cerebral Blood Flow and Metabolism 1991, 11(3):502-507.
Madsen P.L., Schmidt J.F., Wildschiodtz G., Friberg L., Holm S., Vorstrup S., et al. Cerebral O2 metabolism and cerebral blood flow in humans during deep and rapid-eye-movement sleep. Journal of Applied Physiology 1991, 70(6):2597-2601.
Madsen P.L., Vorstrup S. Cerebral blood flow and metabolism during sleep. Cerebrovascular and Brain Metabolism Reviews 1991, 3(4):281-296.
Mancia M. The dream between neuroscience and psychoanalysis. Schweizer Archiv für Neurologie und Psychiatrie 2005, 156(8):471-479.
Maquet P. Functional neuroimaging of normal human sleep by positron emission tomography. Journal of Sleep Research 2000, 9(3):207-231.
Maquet P. Current status of brain imaging in sleep medicine. Sleep Medicine Reviews 2005, 9(3):155-156.
Maquet P., Dive D., Salmon E., Sadzot B., Franco G., Poirrier R., et al. Cerebral glucose utilization during sleep-wake cycle in man determined by positron emission tomography and [18F]2-fluoro-2-deoxy-d-glucose method. Brain Research 1990, 513(1):136-143.
Maquet P., Laureys S., Peigneux P., Fuchs S., Petiau C., Phillips C., et al. Experience-dependent changes in cerebral activation during human REM sleep. Nature Neuroscience 2000, 3(8):831-836.
Maquet P., Peters J., Aerts J., Delfiore G., Degueldre C., Luxen A., et al. Functional neuroanatomy of human rapid-eye-movement sleep and dreaming. Nature 1996, 383(6596):163-166.
Maquet P., Phillips C. Functional brain imaging of human sleep. Journal of Sleep Research 1998, 7(Suppl. 1):42-47.
Maquet P., Ruby P., Maudoux A., Albouy G., Sterpenich V., Dang-Vu T., et al. Human cognition during REM sleep and the activity profile within frontal and parietal cortices: A reappraisal of functional neuroimaging data. Progress in Brain Research 2005, 150:219-227.
Marini G., Gritti I., Mancia M. Enhancement of tonic and phasic events of rapid eye movement sleep following bilateral ibotenic acid injections into centralis lateralis thalamic nucleus of cats. Neuroscience 1992, 48(4):877-888.
Massimini M., Ferrarelli F., Huber R., Esser S.K., Singh H., Tononi G. Breakdown of cortical effective connectivity during sleep. Science 2005, 309(5744):2228-2232.
Maury A. Le sommeil et les rêves: Etudes psychologiques sur ces phénomènes et les divers états qui s'y rattachent 1862, Didier, Paris. 2nd ed.
Miyauchi S., Misaki M., Kan S., Fukunaga T., Koike T. Human brain activity time-locked to rapid eye movements during REM sleep. Experimental Brain Research 2009, 192(4):657-667.
Nee D.E., Wager T.D., Jonides J. Interference resolution: Insights from a meta-analysis of neuroimaging tasks. Cognitive, Affective & Behavioral Neuroscience 2007, 7(1):1-17.
Nielsen T.A. Chronobiological features of dream production. Sleep Medicine Reviews 2004, 8(5):403-424.
Nielsen T., Levin R. Nightmares: A new neurocognitive model. Sleep Medicine Reviews 2007, 11(4):295-310.
Nishida M., Pearsall J., Buckner R.L., Walker M.P. REM sleep, prefrontal theta, and the consolidation of human emotional memory. Cerebral Cortex 2009, 19(5):1158-1166.
Nofzinger E.A., Mintun M.A., Wiseman M., Kupfer D.J., Moore R.Y. Forebrain activation in REM sleep: An FDG PET study. Brain Research 1997, 770(1-2):192-201.
Ogawa K., Abe T., Nittono H., Yamazaki K., Hori T. Phasic brain activity related to the onset of rapid eye movements during rapid eye movement sleep: Study of event-related potentials and standardized low-resolution brain electromagnetic tomography. Journal of Sleep Research 2010, 19(3):407-414.
Oudiette D., De Cock V.C., Lavault S., Leu S., Vidailhet M., Arnulf I. Nonviolent elaborate behaviors may also occur in REM sleep behavior disorder. Neurology 2009, 72(6):551-557.
Pace-Schott E.F., Milad M.R., Orr S.P., Rauch S.L., Stickgold R., Pitman R.K. Sleep promotes generalization of extinction of conditioned fear. Sleep 2009, 32(1):19-26.
Peigneux P., Laureys S., Fuchs S., Delbeuck X., Degueldre C., Aerts J., et al. Generation of rapid eye movements during paradoxical sleep in humans. Neuroimage 2001, 14(3):701-708.
Perrin F., Garcia-Larrea L., Mauguiere F., Bastuji H. A differential brain response to the subject's own name persists during sleep. Clinical Neurophysiology 1999, 110(12):2153-2164.
Pillar G., Malhotra A., Lavie P. Post-traumatic stress disorder and sleep - What a nightmare!. Sleep Medicine Reviews 2000, 4(2):183-200.
Portas C.M., Krakow K., Allen P., Josephs O., Armony J.L., Frith C.D. Auditory processing across the sleep-wake cycle: Simultaneous EEG and fMRI monitoring in humans. Neuron 2000, 28(3):991-999.
Raichle M.E., MacLeod A.M., Snyder A.Z., Powers W.J., Gusnard D.A., Shulman G.L. A default mode of brain function. Proceedings of the National Academy of Sciences of the United States of America 2001, 98(2):676-682.
Raichle M.E., Snyder A.Z. A default mode of brain function: A brief history of an evolving idea. Neuroimage 2007, 37(4):1083-1090. (discussion 1097-1089).
Rasch B., Buchel C., Gais S., Born J. Odor cues during slow-wave sleep prompt declarative memory consolidation. Science 2007, 315(5817):1426-1429.
Revonsuo A. The reinterpretation of dreams: An evolutionary hypothesis of the function of dreaming. Behavioral and Brain Sciences 2000, 23(6):877-901. (discussion 904-1121).
Revonsuo A., Salmivalli C. A content analysis of bizarre elements in dreams. Dreaming 1995, 5(3):169-187.
Roland P.E., Gulyas B. Visual memory, visual imagery, and visual recognition of large field patterns by the human brain: Functional anatomy by positron emission tomography. Cerebral Cortex 1995, 5(1):79-93.
Ruby P., Decety J. How would you feel versus how do you think she would feel? A neuroimaging study of perspective-taking with social emotions. Journal of Cognitive Neuroscience 2004, 16(6):988-999.
Saint-Denys H. Les Rêves et les moyens de les diriger 1867/1977, Editions D'Aujourd'hui, Paris.
Salzarule P., Liary G.C., Bancaud J., Munari C., Barros Ferreira M.D., JP C.H., et al. Direct depth recording of the striate cortex during REM sleep in man: are there PGO potentials?. Electroencephalography and Clinical Neurophysiology 1975, 38(2):199-202.
Schenck C.H., Bundlie S.R., Ettinger M.G., Mahowald M.W. Chronic behavioral disorders of human REM sleep: A new category of parasomnia. Sleep 1986, 9(2):293-308.
Schneider, A., & Domhoff, G. W. (2009). The quantitative study of dreams. http://www.dreamresearch.net/.
Schredl M., Erlacher D. Self-reported effects of dreams on waking-life creativity: An empirical study. Journal of Psychology 2007, 141(1):35-46.
Schwartz S. A historical loop of one hundred years: Similarities between 19th century and contemporary dream research. Dreaming 2000, 10(1):55-66.
Schwartz S. Are life episodes replayed during dreaming?. Trends in Cognitive Sciences 2003, 7(8):325-327.
Schwartz S. What dreaming can reveal about cognitive and brain functions during sleep: A lexico-statistical analysis of dream reports. Psychological Belgica 2004, 44(1/2):5-42.
Schwartz S. Life goes on in dreams. Sleep 2010, 33(1):15-16.
Schwartz S., Maquet P. Sleep imaging and the neuro-psychological assessment of dreams. Trends in Cognitive Sciences 2002, 6(1):23-30.
Silvestri A.J. REM sleep deprivation affects extinction of cued but not contextual fear conditioning. Physiology & Behavior 2005, 84(3):343-349.
Solms M. The neuropsychology of dreams: A clinico-anatomical study 1997, Erlbaum, Mahwah, NJ.
Solms M. What is consciousness?. Journal of the American Psychoanalytic Association 1997, 45(3):681-703. (discussion 704-678).
Steriade M., McCarley R.W. Brainstem control of wakefulness and sleep 1990, Plenum Press, New York.
Steriade M., McCarley R.W. Brain control of wakefulness and sleep 2005, Springer, New York.
Sterpenich V., Albouy G., Boly M., Vandewalle G., Darsaud A., Balteau E., et al. Sleep-related hippocampo-cortical interplay during emotional memory recollection. PLoS Biology 2007, 5(11):e282.
Sterpenich V., Albouy G., Darsaud A., Schmidt C., Vandewalle G., Dang Vu., et al. Sleep promotes the neural reorganization of remote emotional memory. Journal of Neuroscience 2009, 29(16):5143-5152.
Stickgold R., Hobson J.A., Fosse R., Fosse M. Sleep, learning, and dreams: Off-line memory reprocessing. Science 2001, 294(5544):1052-1057.
Stickgold R., Malia A., Fosse R., Propper R., Hobson J.A. Brain-mind states: I. Longitudinal field study of sleep/wake factors influencing mentation report length. Sleep 2001, 24(2):171-179.
Strauch I., Meier B., Foulkes D. In search of dreams: Results of experimental dream research 1996, State University of New York Press, Albany, NY.
Trenholme I., Cartwright R.D., Greenberg G. Dream dimension differences during a life change. Psychiatry Research 1984, 12(1):35-45.
Valli K., Revonsuo A. The threat simulation theory in light of recent empirical evidence: A review. American Journal of Psychology 2009, 122(1):17-38.
Valli K., Revonsuo A., Palkas O., Ismail K.H., Ali K.J., Punamaki R.L. The threat simulation theory of the evolutionary function of dreaming: Evidence from dreams of traumatized children. Consciousness and Cognition 2005, 14(1):188-218.
Voss U., Holzmann R., Tuin I., Hobson J.A. Lucid dreaming: A state of consciousness with features of both waking and non-lucid dreaming. Sleep 2009, 32(9):1191-1200.
Vuilleumier P. How brains beware: Neural mechanisms of emotional attention. Trends in Cognitive Sciences 2005, 9(12):585-594.
Wagner U., Gais S., Born J. Emotional memory formation is enhanced across sleep intervals with high amounts of rapid eye movement sleep. Learning & Memory 2001, 8(2):112-119.
Wagner U., Gais S., Haider H., Verleger R., Born J. Sleep inspires insight. Nature 2004, 427(6972):352-355.
Wagner U., Hallschmid M., Rasch B., Born J. Brief sleep after learning keeps emotional memories alive for years. Biological Psychiatry 2006, 60(7):788-790.
Walker M.P. The role of sleep in cognition and emotion. Annals of the New York Academy of Sciences 2009, 1156:168-197.
Wamsley E.J., Antrobus J.S. The expression of trace conditioning during non-REM sleep and its relation to subjective experience. Neurobiology of Learning and Memory 2009.
Wamsley E.J., Perry K., Djonlagic I., Reaven L.B., Stickgold R. Cognitive replay of visuomotor learning at sleep onset: Temporal dynamics and relationship to task performance. Sleep 2010, 33(1):59-68.
Wamsley E.J., Tucker M., Payne J.D., Benavides J.A., Stickgold R. Dreaming of a learning task is associated with enhanced sleep-dependent memory consolidation. Current Biology 2010, 20(9):850-855.
Wehrle R., Czisch M., Kaufmann C., Wetter T.C., Holsboer F., Auer D.P., et al. Rapid eye movement-related brain activation in human sleep: A functional magnetic resonance imaging study. NeuroReport 2005, 16(8):853-857.
Wehrle R., Kaufmann C., Wetter T.C., Holsboer F., Auer D.P., Pollmacher T., et al. Functional microstates within human REM sleep: First evidence from fMRI of a thalamocortical network specific for phasic REM periods. European Journal of Neuroscience 2007, 25(3):863-871.
Wittmann L., Schredl M., Kramer M. Dreaming in posttraumatic stress disorder: A critical review of phenomenology, psychophysiology and treatment. Psychotherapy and Psychosomatics 2007, 76(1):25-39.
Zeki S., Watson J.D., Frackowiak R.S. Going beyond the information given: the relation of illusory visual motion to brain activity. Proceedings: Biological Sciences 1993, 252(1335):215-222.