Unexplained neurologic symptoms: an fMRI study of sensory conversion disorder.

Neurology. 2006 Dec 12;67(11):2036-8. Related Articles, Links
 
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Unexplained neurologic symptoms: an fMRI study of sensory conversion disorder.

Ghaffar O, Staines WR, Feinstein A.

Neuropsychiatry Division, Department of Psychiatry, Sunnybrook Health Sciences Centre, FG08-2075 Bayview Avenue, Toronto, ON M4N 3M5, Canada.

We investigated three subjects with unexplained sensory loss meeting criteria for conversion disorder using brain fMRI during unilateral and bilateral vibrotactile stimulation. In each subject, stimulation of the affected limb did not produce activation of the contralateral primary somatosensory (S1) region, whereas bilateral limb stimulation did. These findings implicate selective alterations in primary sensorimotor cortex activity in conversion disorder, and may also reconcile the discordant results of previous studies.

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PMID: 17159115 [PubMed – indexed for MEDLINE]

Maurice Preter, MD

About Maurice Preter MD

Maurice Preter, MD is a European and U.S. educated psychiatrist, psychotherapist, psychopharmacologist, neurologist, and medical-legal expert in private practice in Manhattan. He is also the principal of Fifth Avenue Concierge Medicine, PLLC, a medical concierge service and health advisory for select individuals and families.
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