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Ghaffar O, Staines WR, Feinstein A. Unexplained neurologic symptoms: an fMRI study of sensory conversion disorder. Neurology. 2006;67(11):2036-8doi: 10.1212/01.wnl.0000247275.68402.fc.
Ghaffar, O., Staines, W. R., & Feinstein, A. (2006). Unexplained neurologic symptoms: an fMRI study of sensory conversion disorder. Neurology, 67(11), 2036-8. https://doi.org/10.1212/01.wnl.0000247275.68402.fc
Ghaffar, Omar, et al. "Unexplained neurologic symptoms: an fMRI study of sensory conversion disorder." Neurology vol. 67,11 (2006): 2036-8. doi: https://doi.org/10.1212/01.wnl.0000247275.68402.fc
Ghaffar O, Staines WR, Feinstein A. Unexplained neurologic symptoms: an fMRI study of sensory conversion disorder. Neurology. 2006 Dec 12;67(11):2036-8. doi: 10.1212/01.wnl.0000247275.68402.fc. PMID: 17159115.
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Neurology. 2006 Dec 12;67(11):2036-8. doi: 10.1212/01.wnl.0000247275.68402.fc.

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

Neurology

Omar Ghaffar, W Richard Staines, Anthony Feinstein

Affiliations

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

PMID: 17159115 DOI: 10.1212/01.wnl.0000247275.68402.fc

Abstract

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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