A TMS study of temporal aspect of the posterior parietal cortex involved in visual search

Akira Matsuoka, Sheng Ge, Shoogo Ueno, Keiji Iramina

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Transcranial magnetic stimulation (TMS) is applied as an important method to investigate human cognitive process. In this study, we used TMS to investigate temporal aspect of the right posterior parietal cortex involved in visual search. Subjects were required to respond as quickly and as accurately as possible by pressing a mouse button to indicate the presence or absence of the target, and the reaction times were measured. Subjects received four experiments which the TMS stimulus onset asynchronies (SOA) were set as 100, 150, 200 and 250ms after visual stimulus presentation. When we examined the effects of TMS on pop-out visual search, there was a significant elevation in target-present reaction time when the TMS pluses were applied 150ms after visual stimulus presentation. However for the other SOA cases, there was no significant difference between no-TMS and TMS conditions. Therefore, we considered that the right PPC was involved in the pop-out visual search at about 150ms after visual stimulus presentation.

本文言語英語
ホスト出版物のタイトルIFMBE Proceedings
編集者Sun I. Kim, Tae Suk Suh
出版社Springer Verlag
ページ2776-2778
ページ数3
1
ISBN(印刷版)9783540368397
DOI
出版ステータス出版済み - 2007
イベント10th World Congress on Medical Physics and Biomedical Engineering, WC 2006 - Seoul, 大韓民国
継続期間: 8 27 20069 1 2006

出版物シリーズ

名前IFMBE Proceedings
番号1
14
ISSN(印刷版)1680-0737
ISSN(電子版)1433-9277

その他

その他10th World Congress on Medical Physics and Biomedical Engineering, WC 2006
国/地域大韓民国
CitySeoul
Period8/27/069/1/06

All Science Journal Classification (ASJC) codes

  • バイオエンジニアリング
  • 生体医工学

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