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J Neuropsychiatry Clin Neurosci. 2009 Fall;21(4):455-62. doi: 10.1176/appi.neuropsych.21.4.455.

Magnetoencephalographic characteristics of psychosis in temporal lobe epilepsy.

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1
Department of Neuropsychiatry, Graduate School of Medicine, Kyoto University, 54 Shôgoin-kawahara-chô, Sakyo-ku, Kyoto City 606-8507, Japan. fukao@kuhp.kyoto-u.ac.jp

Abstract

To test the hypothesis that some particular magnetoencephalographic findings characterize psychosis manifesting in temporal lobe epilepsy (TLE) patients, the authors performed statistical analyses on the correlation between a history of psychosis and four magnetoencephalographic spike-dipole patterns, namely, left and right inferotemporal-horizontal (IH) and superotemporal-vertical (SV) types. Fifty-seven patients with TLE were studied, 16 of whom had a history of psychosis. Of the four types of spike-dipoles, only left SV type showed a strong correlation with psychosis, suggesting that dysfunction of the left temporal neocortex specifically contributes to the manifestation of psychotic symptoms in TLE patients.

PMID:
19996255
DOI:
10.1176/jnp.2009.21.4.455
[Indexed for MEDLINE]
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