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Functional neuroanatomy of hypnotic state
Maquet, Pierre; Faymonville, Marie-Elisabeth; Degueldre, Christian et al.
1999In Biological Psychiatry, 45 (3), p. 327-333
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Keywords :
Cerebral blood flow; Positron-emission tomography; Statistical parametric mapping; Hypnosis; Mental imagery
Abstract :
[en] BACKGROUND: The aim of the present study was to describe the distribution of regional cerebral blood flow during the hypnotic state (HS) in humans, using positron-emission tomography (PET) and statistical parametric mapping. METHODS: The hypnotic state relied on revivification of pleasant autobiographical memories and was compared to imaging autobiographical material in "normal alertness." A group of 9 subjects under polygraphic monitoring received six H215O infusions and was scanned in the following order: alert-HS-HS-HS with color hallucination-HS with color hallucination-alert. PET data were analyzed using statistical parametric mapping (SPM95). RESULTS: The group analysis showed that hypnotic state is related to the activation of a widespread, mainly left-sided, set of cortical areas involving occipital, parietal, precentral, premotor, and ventrolateral prefrontal cortices and a few right-sided regions: occipital and anterior cingulate cortices. CONCLUSIONS: The pattern of activation during hypnotic state differs from those induced in normal subjects by the simple evocation of autobiographical memories. It shares many similarities with mental imagery, from which it differs by the relative deactivation of precuneus.
Disciplines :
Neurosciences & behavior
Author, co-author :
Maquet, Pierre  ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Faymonville, Marie-Elisabeth ;  Université de Liège - ULiège > Services généraux (Faculté de médecine) > Relations académiques et scientifiques (Médecine)
Degueldre, Christian ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Delfiore, Guy
Franck, Georges ;  Université de Liège - ULiège > Relations académiques et scientifiques (Médecine)
Luxen, André ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie organique de synthèse - Centre de recherches du cyclotron
Lamy, Maurice ;  Université de Liège - ULiège > Département des sciences cliniques > Anesthésie et réanimation
Language :
English
Title :
Functional neuroanatomy of hypnotic state
Publication date :
01 February 1999
Journal title :
Biological Psychiatry
ISSN :
0006-3223
Publisher :
Elsevier, New York, United States - New York
Volume :
45
Issue :
3
Pages :
327-333
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 14 April 2009

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