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Agent-specific responses in the cingulate cortex during economic exchanges.

Damon Tomlin·M Amin Kayali·Brooks King-Casas·Cedric Anen·Colin F Camerer·Steven R Quartz·P Read Montague
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Abstract

Interactions with other responsive agents lie at the core of all social exchange. During a social exchange with a partner, one fundamental variable that must be computed correctly is who gets credit for a shared outcome; this assignment is crucial for deciding on an optimal level of cooperation that avoids simple exploitation. We carried out an iterated, two-person economic exchange and made simultaneous hemodynamic measurements from each player's brain. These joint measurements revealed agent-specific responses in the social domain ("me" and "not me") arranged in a systematic spatial pattern along the cingulate cortex. This systematic response pattern did not depend on metrical aspects of the exchange, and it disappeared completely in the absence of a responding partner.

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Brain MappingEconomicsGames, ExperimentalGyrus CinguliHumansInterpersonal RelationsTrustJournal ArticleResearch Support, N.I.H., ExtramuralResearch Support, Non-U.S. Gov't

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Damon Tomlin, M Amin Kayali, Brooks King-Casas, Cedric Anen, Colin F Camerer, Steven R Quartz, P Read Montague. 2006-05-19. Agent-specific responses in the cingulate cortex during economic exchanges.. https://doi.org/10.1126/science.1125596

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