Context-dependent representation of reinforcement in monkey amygdala

Daichi Hirai, Takayuki Hosokawa, Masato Inoue, Shigehiro Miyachi, Akichika Mikami

    研究成果: Article査読

    5 被引用数 (Scopus)

    抄録

    It has been reported that neurons in the amygdala respond to visual cues that predict reward and aversive outcomes. However, it remains unclear whether the representation of reinforcement in the amygdala depends on the relative preference for an outcome compared with another simultaneously available outcome. In this study, we introduced three reinforcements (juice, water, and electrical stimulus) and used two of them in one experimental block. Of 52 neurons that showed cue responses reflecting the outcome information, 23% of amygdala neurons coded preferred outcomes, whereas only one neuron coded nonpreferred outcomes. These proportions of amygdala were significantly different from those of the orbitofrontal cortex, which had both types of neurons.

    本文言語English
    ページ(範囲)558-562
    ページ数5
    ジャーナルNeuroReport
    20
    6
    DOI
    出版ステータスPublished - 2009 4 22

    ASJC Scopus subject areas

    • 神経科学(全般)

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