EEG Dynamics Related with Eexpertise; Rapid, Knowledge-Guided Perception in Shogi Task

カテゴリ: 部門大会

論文No: TC5-3

グループ名: 【C】平成20年電気学会電子・情報・システム部門大会講演論文集

発行日: 2008/08/20

タイトル(英語): EEG Dynamics Related with Eexpertise; Rapid, Knowledge-Guided Perception in Shogi Task

著者名: 中谷 裕教(理化学研究所),山口 陽子(理化学研究所)

著者名(英語): Nakatani Hironori(RIKEN Brain Science Institute),Yamaguchi Youko(RIKEN Brain Science Institute)

キーワード: 脳波活動のダイナミクス|知識を活用した瞬時の知覚|熟練|位相のリセット|将棋|EEG dynamics|rapid| knowledge-guided perception|expertise|phase resetting|shogi

要約(日本語): Rapid, knowledge-guided perception of complex stimuli is one of forms of expertise. We aim to elucidate brain dynamics for the rapid, knowledge-guided perception with shogi tasks. The expertise of shogi is considered to enable rapid perception of the meaningful patterns such as castles or attacking formations. The present study compared individuals with high versus low playing strength by investigating human scalp electroencephalogram (EEG). Meaningful and nonsense shogi patterns were presented to 19 amateur shogi players. Regardless of types of shogi patterns, when patterns were presented, all players showed transient period of delta band activity in parietal area 300 ms after the stimulus presentation. This activity might reflect recognition of the presented pattern. Importantly, when a pattern was meaningful, only experienced players showed phase resetting in parietal alpha band 150 ms after the stimulus presentation. Thus, this early phase resetting at parietal area might reflect expertise in shogi. Our results indicate that expertise can be characterized by distinct neural dynamics in the brain.

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