記憶検索過程を反映する視覚陰性電位に及ぼす標的刺激の数の効果

広島大学教育学部紀要. 第一部 39 号 113-120 頁 1991-02-26 発行
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ファイル情報(添付)
タイトル ( jpn )
記憶検索過程を反映する視覚陰性電位に及ぼす標的刺激の数の効果
タイトル ( eng )
Effects of the number of targets on visual negative event-related potentials reflecting memory search.
作成者
収録物名
広島大学教育学部紀要. 第一部
Bulletin of the Faculty of Education, Hiroshima University. Part 1
39
開始ページ 113
終了ページ 120
抄録
Event-related potentials were recorded from eight subjects during simple reaction task and two visual discrimination tasks. Stimuli were horizontal arrays of five different alphabets. In two discrimination tasks, subjects were required to respond to target with one hand, and to non-target with another hand. In easy discrimination task, arrays that contained letter 'A' were designated as targets. Arrays containing any of 'A'/'B'/'C' letters were the targets in difficult discrimination task. In difference waves obtained by subtracting simple reaction ERPs from discrimination ERPs, negative deflections, which were termed NA by Ritter et al. (1983), were observed. This negativity became longer in duration when discrimination task was more difficult, but the scalp distribution of later portion of this negativity was different from those in Ritter et al. (1988)'s experiment. Prolongation of NA in the present experiment was probably caused by overlap of search negativity (Okita et al., 1985) on NA. The process which is reflected in later deflection of NA is not memory search as Ritter et al. (1988) interpreted, but is likely spatial search for multi-element displayed simultaneously.
著者キーワード
event-related potentials
memory search
NA
search negativity
NDC分類
心理学 [ 140 ]
言語
日本語
資源タイプ 紀要論文
出版者
広島大学教育学部
発行日 1991-02-26
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 0440-8705
[NCID] AN00213359