意味活性の時間経過における半球差 : ──事象関連電位による検討──

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概要

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• To investigate hemispheric differences of semantic activation, event-related potentials were recorded when two pairs of words were successively presented with a SOA of 200 ms or 800 ms. Each word pair was simultaneously exposed to the left (LVF) and right (RVF) visual fields. Participants were required to attend one visual field and make a judgment whether the words (prime-target) presented at the attended visual field were semantically related or not. A priming effect on reaction time was observed for RVF targets with SOA 200 ms, and for both LVF and RVF targets with SOA 800 ms, consistent with the idea that semantic activation is faster in the left than the right hemisphere. In contrast, the priming effect on N400 amplitude was not affected by the SOA and visual field, and the onset latency was shorter for RVF than for LVF targets, irrespective of SOA. The N400 priming effects were interpreted to be associated with task-induced semantic processing.

• 公益社団法人 日本心理学会の論文

著者

• 沖田 庸嵩

  愛知淑徳大学

• 加藤 公子

  国立長寿医療センター研究所

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• 意味活性の時間経過における半球差 : ──事象関連電位による検討──
• 視野内視野間意味プライミング──事象関連脳電位を用いた研究──

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