Cited by 17Memory and Neural MechanismsNeural and Behavioral Psychology StudiesChild and Animal Learning Development

Human hippocampus and dorsomedial prefrontal cortex infer and update latent causes during social interaction

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Mahmoodi, Ali, Luo, Shuyi, Harbison, Caroline, Piray, Payam, Rushworth, Matthew F.S.·2024·Neuron

Published version of a preprint

Abstract

Latent-cause inference is the process of identifying features of the environment that have caused an outcome. This problem is especially important in social settings where individuals may not make equal contributions to the outcomes they achieve together. Here, we designed a novel task in which participants inferred which of two characters was more likely to have been responsible for outcomes achieved by working together. Using computational modeling, univariate and multivariate analysis of human fMRI, and continuous theta-burst stimulation, we identified two brain regions that solved the task. Notably, as each outcome occurred, it was possible to decode the inference of its cause (the responsible character) from hippocampal activity. Activity in dorsomedial prefrontal cortex (dmPFC) updated estimates of association between cause-responsible character-and the outcome. Disruption of dmPFC activity impaired participants' ability to update their estimate as a function of inferred responsibility but spared their ability to infer responsibility.

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Crossref · 10.1016/j.neuron.2024.09.001

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Authors
Mahmoodi, A., Luo, S., Harbison, C., Piray, P., & Rushworth, M. F. S.
Affiliations
  • University of Oxford (GB)
  • University of Southern California (US)
Corresponding author
Mahmoodi, Ali
Venue
Neuron
Publisher
Elsevier BV
Published
2024-11
Volume
112
Issue
22
Pages
3796-3809.e9
ISSN
0896-6273 (ISSN-L)
OpenAlex
W4402966588
Cited by
17
References
87
Citations by year
2026: 9 · 2025: 7 · 2024: 1
FWCI
4.14
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nd)
  • PubMed (publishedVersion)
Funders
  • Wellcome Trust (221794/Z/20/Z)
  • National Institute of Mental Health (R21MH134217)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Social Sciences › Psychology › Developmental and Educational Psychology › Child and Animal Learning Development
Keywords
hippocampus, dorsomedial prefrontal cortex, Bayesian updating, joint action, social interaction, causal inference, theta burst stimulation, computational modeling
MeSH terms
Social Interaction, Adult, Brain Mapping, Female, Hippocampus, Humans, Magnetic Resonance Imaging, Male, Prefrontal Cortex, Young Adult

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