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Characteristic Event-related Potentials Evoked by Somatosensory Tasks in a Patient with Right-Left Disorientation and Finger Agnosia Yasoichi Nakajima 1 , Mitsuaki Sekiya 2 , Keigo Goto 1 , Hiroshi Miyasaka 1 , Yoshikuni Mizuno 1 1Department of Neurology, Juntendo University 2Department of Internal Medicine, Juntendo University Keyword: ERP , P300 , right-left disorientation , finger agnosia , Gerstmann's syndrome pp.873-878
Published Date 1994/9/1
DOI https://doi.org/10.11477/mf.1406900687
  • Abstract
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Event-related brain potentials associated with both somatosensory and auditory detection tasks were recorded from the scalp in a 63-year-old man with finger agnosia and right-left disorientation resulted from cerebral infarction located around the region of the left angular gyrus. In a somatosensory oddball paradigm for discrimination between the right index finger (target, P=0.2) and the left index finger (non-target, P=0.8), early cognitive compo-nents P100, N140 and processing negativity were observed both in the target responses and non-tar-get responses, however, no P300 component was recorded in both paradigms.


Copyright © 1994, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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