2015年3月1日日曜日

Neuronal Prediction of Opponent’s Behavior during Cooperative Social Interchange in Primates

Keren Haroush, Ziv M. Williams
Cell
Available online 26 February 2015

サルで繰り返し囚人のジレンマ+電気生理。
サルも「しっぺ返し戦略」を採用。
dACCの別々の神経細胞群が「自己の協力行動」と「相手の行動の予測」をコード。
電気刺激でdACCの活動を阻害すると、「相手に協力してもらった後の協力」の頻度のみが減少。

A cornerstone of successful social interchange is the ability to anticipate each other’s intentions or actions. While generating these internal predictions is essential for constructive social behavior, their single neuronal basis and causal underpinnings are unknown. Here, we discover specific neurons in the primate dorsal anterior cingulate that selectively predict an opponent’s yet unknown decision to invest in their common good or defect and distinct neurons that encode the monkey’s own current decision based on prior outcomes. Mixed population predictions of the other was remarkably near optimal compared to behavioral decoders. Moreover, disrupting cingulate activity selectively biased mutually beneficial interactions between the monkeys but, surprisingly, had no influence on their decisions when no net-positive outcome was possible. These findings identify a group of other-predictive neurons in the primate anterior cingulate essential for enacting cooperative interactions and may pave a way toward the targeted treatment of social behavioral disorders.

0 件のコメント:

コメントを投稿