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Reputation in an economic game modulates premotor cortex activity during action observation

Reputation in an economic game modulates premotor cortex activity during action observation

Farmer, Harry ORCID: 0000-0002-3684-0605, Apps, Matthew and Tsakiris, Manos (2016) Reputation in an economic game modulates premotor cortex activity during action observation. European Journal of Neuroscience, 44 (5). pp. 2191-2201. ISSN 0953-816X (Print), 1460-9568 (Online) (doi:

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Our interactions with other people – and our processing of their actions – are shaped by their reputation. Research has identified an Action Observation Network (AON) which is engaged when observing other people's actions. Yet, little is known about how the processing of others’ actions is influenced by another's reputation. Is the response of the AON modulated by the reputation of the actor? We developed a variant of the ultimatum game in which participants watched either the visible or occluded actions of two ‘proposers’. These actions were tied to decisions of how to split a pot of money although the proposers’ decisions on each trial were not known to participants when observing the actions. One proposer made fair offers on the majority of trials, establishing a positive reputation, whereas the other made predominantly, unfair offers resulting in a negative reputation. We found significant activations in two regions of the left dorsal premotor cortex (dPMC). The first of these showed a main effect of reputation with greater activation for the negative reputation proposer than the positive reputation proposer. Furthermore individual differences in trust ratings of the two proposers covaried with activation in the right primary motor cortex (M1). The second showed an interaction between visibility and reputation driven by a greater effect of reputation when participants were observing an occluded action. Our findings show that the processing of others’ actions in the AON is modulated by an actor's reputation, and suggest a predictive role for the PMC during action observation.

Item Type: Article
Uncontrolled Keywords: social decision making, functional MRI, motor system, trust, mirror neurons
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Faculty / Department / Research Group: Faculty of Education, Health & Human Sciences
Faculty of Education, Health & Human Sciences > Department of Psychology, Social Work & Counselling
Last Modified: 30 Apr 2020 18:11
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
Selected for REF2021: REF 3

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