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Related Experiment Video

Updated: Jan 26, 2026

Recordings of Neural Circuit Activation in Freely Behaving Animals
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Interaction and functional specialization across a distributed neural circuit for flexible task control in macaques.

K Marche1, N Trudel2, U Schüffelgen2

  • 1Oxford Centre for Integrative Neuroimaging (OxCIN), Department of Experimental Psychology, University of Oxford, Oxford, UK. kjl.marche@gmail.com.

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|January 24, 2026
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Summary

Male macaques track latent state transitions and choice values during reversal tasks. Brain regions like the dorsomedial frontal cortex and thalamus are key, with hippocampal activity tracking reversal probabilities.

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Primate Behavior

Background:

  • Reversal tasks traditionally probe behavioral inhibition and prefrontal cortex function.
  • The role of inhibition and specific prefrontal areas in primate reversal learning is debated.

Purpose of the Study:

  • To investigate neural mechanisms underlying reversal task performance in male macaques.
  • To determine if macaques track latent state transitions beyond simple choice values.

Main Methods:

  • Whole-brain recording and transient ultrasonic disruption in male macaques.
  • Utilized two distinct reversal tasks and a computational model for latent state transition identification.

Main Results:

  • Macaques track both latent state transitions and choice values during reversal tasks.
  • Dorsomedial frontal cortex and thalamus show activity related to choice selection.
  • Hippocampal activity correlates with the probability of state reversal.

Conclusions:

  • Reversal task performance involves tracking latent state dynamics, not just behavioral inhibition.
  • A circuit including dorsomedial frontal cortex, thalamus, and hippocampus is crucial for reversal learning.
  • Disruption of these nodes differentially impairs reversal task performance.