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Japanese

Evaluation of Various Somatosensory Stimulations for Functional MRI Kazushi Hara 1 , Hiroaki Shimizu 2 , Nobukazu Nakasato 1 , Kazuo Mizoi 1 , Takashi Yoshimoto 1 1Departments of Neurosurgery, Tohoku University, School of Medicine 2Department of Neurosurgery, Kohnan Hospital Keyword: somatosensory stimulation , functional magnetic resonance imaging , human , somatosensory evoked field pp.65-68
Published Date 1997/1/1
DOI https://doi.org/10.11477/mf.1406902080
  • Abstract
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The aim of this functional magnetic resonance imaging (fMRI) study was to test detectability of activated area using various somatosensory stimu-lations. The following stimulations were performed in normal volunteers : regular or irregular electri-cal median nerve stimulation (n=5, each), tactile stimulation to the palm and fingers (n=8), pain stimulation to the index finger (n=5) or to the palm and fingers (n=5). fMRI was acquired with a spoiled gradient echo sequence at 1.5 T. Detec-tability of activated area was the highest when the pain stimulation was applied to the palm and fingers (80 %).


Copyright © 1997, 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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