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  Computations Underlying Social Hierarchy Learning: Distinct Neural Mechanisms for Updating and Representing Self-Relevant Information

Kumaran, D., Banino, A., Blundell, C., Hassabis, D., & Dayan, P. (2016). Computations Underlying Social Hierarchy Learning: Distinct Neural Mechanisms for Updating and Representing Self-Relevant Information. Neuron, 92(5), 1135-1147. doi:10.1016/j.neuron.2016.10.052.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-C304-D Version Permalink: http://hdl.handle.net/21.11116/0000-0002-C305-C
Genre: Journal Article

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Kumaran, D, Author
Banino, A, Author
Blundell, C, Author
Hassabis, D, Author
Dayan, P1, Author              
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1External Organizations, ou_persistent22              

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 Abstract: Knowledge about social hierarchies organizes human behavior, yet we understand little about the underlying computations. Here we show that a Bayesian inference scheme, which tracks the power of individuals, better captures behavioral and neural data compared with a reinforcement learning model inspired by rating systems used in games such as chess. We provide evidence that the medial prefrontal cortex (MPFC) selectively mediates the updating of knowledge about one’s own hierarchy, as opposed to that of another individual, a process that underpinned successful performance and involved functional interactions with the amygdala and hippocampus. In contrast, we observed domain-general coding of rank in the amygdala and hippocampus, even when the task did not require it. Our findings reveal the computations underlying a core aspect of social cognition and provide new evidence that self-relevant information may indeed be afforded a unique representational status in the brain.

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 Dates: 2016-12
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: DOI: 10.1016/j.neuron.2016.10.052
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Title: Neuron
Source Genre: Journal
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Publ. Info: Cambridge, Mass. : Cell Press
Pages: - Volume / Issue: 92 (5) Sequence Number: - Start / End Page: 1135 - 1147 Identifier: ISSN: 0896-6273
CoNE: https://pure.mpg.de/cone/journals/resource/954925560565