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Related Experiment Video

Updated: Jul 12, 2026

Recording Spatially Restricted Oscillations in the Hippocampus of Behaving Mice
07:10

Recording Spatially Restricted Oscillations in the Hippocampus of Behaving Mice

Published on: July 1, 2018

Distinct goal location beta frequency dynamics in hippocampus and prefrontal cortex across learning.

Glingna Wang, Nan Zhou, Zachary M Leveroni

    Biorxiv : the Preprint Server for Biology
    |July 10, 2026
    PubMed
    Summary

    Neural oscillations, including beta oscillations (15-30 Hz), are crucial for learning and reward processing. This study reveals how beta oscillations in the hippocampus and prefrontal cortex coordinate during goal-directed navigation and learning in rats.

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    Dual Extracellular Recordings in the Mouse Hippocampus and Prefrontal Cortex
    04:44

    Dual Extracellular Recordings in the Mouse Hippocampus and Prefrontal Cortex

    Published on: February 16, 2024

    Related Experiment Videos

    Last Updated: Jul 12, 2026

    Recording Spatially Restricted Oscillations in the Hippocampus of Behaving Mice
    07:10

    Recording Spatially Restricted Oscillations in the Hippocampus of Behaving Mice

    Published on: July 1, 2018

    Dual Extracellular Recordings in the Mouse Hippocampus and Prefrontal Cortex
    04:44

    Dual Extracellular Recordings in the Mouse Hippocampus and Prefrontal Cortex

    Published on: February 16, 2024

    Area of Science:

    • Neuroscience
    • Cognitive Science
    • Computational Neuroscience

    Background:

    • Neural activity at goal locations provides feedback for action success, engaging neocortical and hippocampal networks.
    • Beta oscillations (15-30 Hz) are a neocortical signature for reward feedback, potentially coordinating distributed neural processes.
    • The role of beta oscillations in coordinating hippocampal-neocortical networks during learning remains unclear.

    Purpose of the Study:

    • To investigate the presence and dynamics of beta oscillations in the hippocampus and prefrontal cortex during goal-directed spatial navigation in rats.
    • To determine how beta oscillations in these regions relate to learning and memory formation.
    • To explore the coordination between hippocampal and neocortical networks at the beta frequency during outcome processing.

    Main Methods:

    • Electrophysiological recordings in the hippocampal CA1 region and prefrontal cortex (PFC) of rats performing spatial navigation tasks.
    • Analysis of beta oscillation power, spectral, and temporal properties in relation to goal approach and learning.
    • Investigation of the relationship between beta oscillations, hippocampal sharp wave-ripples (SWRs), and neuronal firing patterns.

    Main Results:

    • Beta oscillations were detected in both hippocampal CA1 and PFC upon reaching goal locations.
    • Distinct spectral and temporal properties of beta activity in CA1 and PFC suggest weak hippocampal-neocortical coupling at this frequency.
    • PFC beta power increased while CA1 beta power decreased across learning, showing an inverse relationship.
    • PFC beta burst properties were inversely related to hippocampal SWRs, a key learning process.
    • A subset of PFC neurons exhibited modulation by both beta oscillations and SWRs, with distinct task-related firing.

    Conclusions:

    • The hippocampus and prefrontal cortex are locally modulated by beta oscillations during outcome processing at goal locations.
    • Coordination for memory-related processes, particularly during SWRs, emerges after initial beta-frequency modulation.
    • These findings elucidate the distinct yet coordinated roles of hippocampal and neocortical beta oscillations in spatial learning and reward.