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Related Experiment Video

Updated: May 26, 2026

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice

Published on: June 29, 2018

Population coding and neural rhythmicity in the orbitofrontal cortex.

Cyriel M A Pennartz¹, Marijn van Wingerden, Martin Vinck

¹Cognitive and Systems Neuroscience, Center for Neuroscience, Swammerdam Institute for Life Sciences, Faculty of Science, University of Amsterdam, Amsterdam, the Netherlands. c.m.a.pennartz@uva.nl

Annals of the New York Academy of Sciences

|December 8, 2011

Summary

This summary is machine-generated.

The orbitofrontal cortex uses population coding for reward probability, with theta and gamma rhythms structuring neural activity during outcome prediction. This reveals how the brain anticipates rewards based on environmental cues.

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Published on: July 31, 2019

Related Experiment Videos

Last Updated: May 26, 2026

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice

Published on: June 29, 2018

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Evaluation of Hemisphere Lateralization with Bilateral Local Field Potential Recording in Secondary Motor Cortex of Mice

Published on: July 31, 2019

Area of Science:

Neuroscience
Computational Neuroscience

Background:

The orbitofrontal cortex (OFC) is crucial for predicting valuable outcomes from environmental cues.
Understanding population-level coding and temporal structuring of outcome-predictive information in the OFC is limited.

Purpose of the Study:

Investigate population coding of probabilistic reward in the OFC.
Examine the role of orbitofrontal theta and gamma rhythms in representing outcome-predictive information.

Main Methods:

Rats learned odor-food associations with variable reward likelihood.
Recorded single-cell and population activity in the OFC.
Analyzed neural firing patterns in relation to theta and gamma band oscillations.

Main Results:

OFC exhibits population coding for reward probability, not uncertainty.
Reward anticipation correlated with theta-band locked neural activity.
Gamma-band activity was linked to suppressed firing in movement-related neurons.

Conclusions:

Orbitofrontal cortex dynamically codes outcome-relevant parameters across behavioral task phases.
Neural representations are distributed and temporally structured by multiple oscillatory rhythms.
OFC plays a key role in reward prediction and temporal organization of behavior.