雑誌文献を検索します。書籍を検索する際には「書籍検索」を選択してください。

検索

書誌情報 詳細検索 by 医中誌

Japanese

Event related potential in the frontal cortex and EEG vs. MEG studies. Kazuo SASAKI 1,2 1Department of Integrative Brain Science, Faculty of Medicine, Kyoto University 2Department of Integrative Physiology, National Institute for Physiological Science, Okazaki National Research Institute pp.72-81
Published Date 1993/2/10
DOI https://doi.org/10.11477/mf.1431900310
  • Abstract
  • Look Inside

 A few examples of event related potentials in the frontal cortex, especially in the prefrontal association areas, were presented with direct recordings from the cerebral cortex of monkeys and with EEG and MEG recordings over the scalp of human subjects, and functional significances of the potentials were discussed.

 CNV (contingent negative variation) recorded from the human scalp on warning-imperative (W-I) stimuli was interpreted as being due mainly to sustained EPSP currents generated in the superficial parts of apical dentrites of pyramidal neurones in wide areas of the frontal cortex according to the direct recording in monkey experiments. The sustained EPSP currents were recorded from the prefrontal, premotor and supplementary motor cortices on both cerebral hemispheres, whereas gradually increasing EPSP currents toward the I stimulus were from the motor and somatosensory cortices contralateral to the operant hand. The W-I task enables the human and the monkey to respond to an external I stimulus at very short latent time as experienced in 'ready-go' start in athletics and swimming. Functional implication of the cerebro-cerebellar interaction which shortens reaction times on stimulus triggered movement ('cerebellarization') was discussed in relation to the sustained excitation of the frontal association cortices on W-I stimuli ('prefrontalization').


Copyright © 1993, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

関連文献

もっと見る

文献を共有