Stereotyped goal-directed manifold dynamics in the insular cortex

Itay Talpir, Yoav Livneh

Research output: Contribution to journalArticlepeer-review

Abstract

The insular cortex is involved in diverse processes, including bodily homeostasis, emotions, and cognition. However, we lack a comprehensive understanding of how it processes information at the level of neuronal populations. We leveraged recent advances in unsupervised machine learning to study insular cortex population activity patterns (i.e., neuronal manifold) in mice performing goal-directed behaviors. We find that the insular cortex activity manifold is remarkably consistent across different animals and under different motivational states. Activity dynamics within the neuronal manifold are highly stereotyped during rewarded trials, enabling robust prediction of single-trial outcomes across different mice and across various natural and artificial motivational states. Comparing goal-directed behavior with self-paced free consumption, we find that the stereotyped activity patterns reflect task-dependent goal-directed reward anticipation, and not licking, taste, or positive valence. These findings reveal a core computation in insular cortex that could explain its involvement in pathologies involving aberrant motivations.
Original languageEnglish
Article number114027
Number of pages21
JournalCell Reports
Volume43
Issue number4
Early online date2 Apr 2024
DOIs
StatePublished - 23 Apr 2024

All Science Journal Classification (ASJC) codes

  • General Biochemistry,Genetics and Molecular Biology

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