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Titolo:
THE FUNCTIONAL-ANATOMY OF A HYSTERICAL PARALYSIS
Autore:
MARSHALL JC; HALLIGAN PW; FINK GR; WADE DT; FRACKOWIAK RSJ;
Indirizzi:
RADCLIFFE INFIRM,DEPT CLIN NEUROL,NEUROPSYCHOL UNIT OXFORD OX2 6HE ENGLAND RIVERMEAD REHABIL CTR OXFORD OX1 4XD ENGLAND INST NEUROL,WELLCOME DEPT COGNIT NEUROL LONDON WC1N 3BG ENGLAND
Titolo Testata:
Cognition
fascicolo: 1, volume: 64, anno: 1997,
pagine: 1 - 8
SICI:
0010-0277(1997)64:1<1:TFOAHP>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON EMISSION TOMOGRAPHY; ANTERIOR CINGULATE CORTEX; ATTENTION;
Keywords:
HYSTERICAL PARALYSIS; FUNCTIONAL BRAIN IMAGING; ORBITOFRONTAL CORTEX; ANTERIOR CINGULATE; NEGATIVE MOTOR AREAS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
J.C. Marshall et al., "THE FUNCTIONAL-ANATOMY OF A HYSTERICAL PARALYSIS", Cognition, 64(1), 1997, pp. 1-8

Abstract

The concept of a conversion disorder (such as hysterical paralysis) has always been controversial (Ron, M.A. (1996). Somatization and conversion disorders. In: B.S. Fogel, R.B. Schiffer & S.M. Rao (Eds.), Neuropsychiatry. Williams and Wilkins, Baltimore, MD). Although the diagnosis is recognised by current psychiatric taxonomies, many physicians still regard such disorders either as feigned or as failure to find theresponsible organic cause for the patient's symptoms. We report a woman with left sided paralysis (and without somatosensory loss) in whom no organic disease or structural lesion could be found. By contrast, psychological trauma was associated with the onset and recurrent exacerbation of her hemiparalysis. We recorded brain activity when the patient prepared to move and tried to move her paralysed (left) leg and when she prepared to move and did move her good (right) leg. Preparing tomove or moving her good leg, and also preparing to move her paralysedleg, activated motor and/or premotor areas previously described with movement preparation and execution. The attempt to move the paralysed leg failed to activate right primary motor cortex. Instead, the right orbito-frontal and right anterior cingulate cortex were significantly activated. We suggest that these two areas inhibit prefrontal (willed)effects on the right primary motor cortex when the patient tries to move her left leg. (C) 1997 Elsevier Science B.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/01/20 alle ore 10:50:38