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Related Experiment Video

Updated: Jul 15, 2026

Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses
06:42

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Published on: September 28, 2018

The prelimbic cortex arbitrates memory-guided conflict resolution.

Albit Caban-Murillo1, Michelle Surets2, Celine Chien2

  • 1Graduate Program for Neuroscience, Boston University, Boston, MA 02215, USA.

Current Biology : CB
|July 13, 2026
PubMed
Summary

Mice flexibly balance reward and avoidance during conflict resolution by utilizing the prelimbic cortex (PL). This brain region integrates cues to guide behavior, and its function is supported by ventral tegmental area (VTA) projections.

Keywords:
approach-avoidanceavoidanceconflictengramnetworksprefrontal cortexprelimbic cortexreward-seekingventral tegmental areawhole brain

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Area of Science:

  • Neuroscience
  • Behavioral Neuroscience
  • Systems Neuroscience

Background:

  • Adaptive behavior requires balancing competing motivations, such as reward-seeking and threat avoidance.
  • Understanding the neural mechanisms of conflict resolution is crucial for addressing behavioral inflexibility.

Purpose of the Study:

  • To investigate how mice resolve conflict between reward-seeking and avoidance behaviors.
  • To identify the neural circuits involved in memory-guided conflict resolution.
  • To elucidate the role of the prelimbic cortex (PL) in behavioral flexibility.

Main Methods:

  • Mice were trained on a task involving simultaneous reward and foot shock cues.
  • Whole-brain tissue clearing and calcium imaging (bulk and single-cell) were used to assess neural activity.
  • Optogenetic silencing of specific neuronal populations (PL and VTA-PL projections) was performed.

Main Results:

  • Mice successfully learned to balance reward maximization and foot shock avoidance.
  • The prelimbic cortex (PL) was identified as a central hub, with its activity predicting successful conflict resolution.
  • Silencing PL engrams impaired behavioral flexibility, while VTA-PL silencing revealed a novel role in supporting PL function.

Conclusions:

  • The PL plays a critical mechanistic role in guiding behavioral flexibility during memory-guided conflict resolution.
  • Distinct functional network patterns within the PL integrate valence-specific information.
  • Ventral tegmental area (VTA) projections to the PL are essential for supporting this conflict resolution process.