Effects of value and reward magnitude on feedback negativity and P300

Atsushi Sato, Asako Yasuda, Hideki Ohira, Kaori Miyawaki, Masami Nishikawa, Hiroaki Kumano, Tomifusa Kuboki

研究成果: Article査読

227 被引用数 (Scopus)

抄録

Feedback negativity is a negative component of the event-related brain potential observed 250-300 ms after feedback stimuli. The present study investigated the effects of value (correct or incorrect) and reward magnitude (no, small or large) on feedback negativity and P300. Feedback negativity was larger after incorrect feedback than after correct feedback, irrespective of reward magnitude. In contrast, P300 amplitude increased with reward magnitude, irrespective of value. The amplitude of feedback negativity was correlated with a trait score of negative affect and not positive affect, whereas P300 amplitude was correlated with positive affect and not negative affect. These results suggest that value and reward magnitude are processed separately in the brain.

本文言語English
ページ(範囲)407-411
ページ数5
ジャーナルNeuroReport
16
4
DOI
出版ステータスPublished - 2005 3 15
外部発表はい

ASJC Scopus subject areas

  • 神経科学(全般)

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