Social structure learning in human anterior insula

Humans form social coalitions in every society, yet we know little about how we learn and represent social group boundaries. Here we derive predictions from a computational model of latent structure learning to move beyond explicit category labels and interpersonal, or dyadic, similarity as the sole...

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Main Authors: Tatiana Lau, Samuel J Gershman, Mina Cikara
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2020-02-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/53162
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author Tatiana Lau
Samuel J Gershman
Mina Cikara
author_facet Tatiana Lau
Samuel J Gershman
Mina Cikara
author_sort Tatiana Lau
collection DOAJ
description Humans form social coalitions in every society, yet we know little about how we learn and represent social group boundaries. Here we derive predictions from a computational model of latent structure learning to move beyond explicit category labels and interpersonal, or dyadic, similarity as the sole inputs to social group representations. Using a model-based analysis of functional neuroimaging data, we find that separate areas correlate with dyadic similarity and latent structure learning. Trial-by-trial estimates of ‘allyship’ based on dyadic similarity between participants and each agent recruited medial prefrontal cortex/pregenual anterior cingulate (pgACC). Latent social group structure-based allyship estimates, in contrast, recruited right anterior insula (rAI). Variability in the brain signal from rAI improved prediction of variability in ally-choice behavior, whereas variability from the pgACC did not. These results provide novel insights into the psychological and neural mechanisms by which people learn to distinguish ‘us’ from ‘them.’
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spelling doaj.art-f0a30cdb4eee45f6baf97e0bb86a12372022-12-22T03:24:42ZengeLife Sciences Publications LtdeLife2050-084X2020-02-01910.7554/eLife.53162Social structure learning in human anterior insulaTatiana Lau0https://orcid.org/0000-0002-0681-7295Samuel J Gershman1https://orcid.org/0000-0002-6546-3298Mina Cikara2https://orcid.org/0000-0002-6612-4474Royal Holloway, University of London, Egham, United KingdomHarvard University, Cambridge, United StatesHarvard University, Cambridge, United StatesHumans form social coalitions in every society, yet we know little about how we learn and represent social group boundaries. Here we derive predictions from a computational model of latent structure learning to move beyond explicit category labels and interpersonal, or dyadic, similarity as the sole inputs to social group representations. Using a model-based analysis of functional neuroimaging data, we find that separate areas correlate with dyadic similarity and latent structure learning. Trial-by-trial estimates of ‘allyship’ based on dyadic similarity between participants and each agent recruited medial prefrontal cortex/pregenual anterior cingulate (pgACC). Latent social group structure-based allyship estimates, in contrast, recruited right anterior insula (rAI). Variability in the brain signal from rAI improved prediction of variability in ally-choice behavior, whereas variability from the pgACC did not. These results provide novel insights into the psychological and neural mechanisms by which people learn to distinguish ‘us’ from ‘them.’https://elifesciences.org/articles/53162social groupsstructure learningBayesian inferenceanterior insulamedial prefrontal cortexfMRI
spellingShingle Tatiana Lau
Samuel J Gershman
Mina Cikara
Social structure learning in human anterior insula
eLife
social groups
structure learning
Bayesian inference
anterior insula
medial prefrontal cortex
fMRI
title Social structure learning in human anterior insula
title_full Social structure learning in human anterior insula
title_fullStr Social structure learning in human anterior insula
title_full_unstemmed Social structure learning in human anterior insula
title_short Social structure learning in human anterior insula
title_sort social structure learning in human anterior insula
topic social groups
structure learning
Bayesian inference
anterior insula
medial prefrontal cortex
fMRI
url https://elifesciences.org/articles/53162
work_keys_str_mv AT tatianalau socialstructurelearninginhumananteriorinsula
AT samueljgershman socialstructurelearninginhumananteriorinsula
AT minacikara socialstructurelearninginhumananteriorinsula