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Related Experiment Video

Updated: May 9, 2025

Investigating Pain-Related Avoidance Behavior using a Robotic Arm-Reaching Paradigm
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Prefrontal ErbB4-positive interneurons for avoidance.

Wanpeng Cui1, Chen Shen1, Wen-Cheng Xiong2

  • 1Department of Neurosciences, School of Medicine, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA.

Cell Reports
|May 1, 2025
PubMed
Summary
This summary is machine-generated.

Researchers discovered that ErbB4-positive interneurons (B4INs) in the prefrontal cortex play a crucial role in mediating avoidance behaviors in mice. Their findings highlight B4INs

Keywords:
CP: NeuroscienceErbB4GABAergic interneuronsavoidancebasal forebrainprefrontal cortex

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Area of Science:

  • Neuroscience
  • Behavioral Biology
  • Cellular Neuroscience

Background:

  • The prefrontal cortex (PFC) is implicated in decision-making, particularly approach-avoidance behaviors.
  • The precise role of specific interneuron (IN) subtypes within the PFC in modulating these behaviors is not fully understood.
  • Understanding interneuron function is key to deciphering complex behavioral outputs.

Purpose of the Study:

  • To investigate the function of ErbB4-positive interneurons (B4INs) in the prefrontal cortex during avoidance behaviors.
  • To elucidate the neural circuitry and mechanisms by which B4INs control avoidance.
  • To determine the contribution of ErbB4 signaling to B4IN-mediated avoidance.

Main Methods:

  • Utilized in vivo calcium imaging in freely moving mice to monitor B4IN activity during avoidance tasks.
  • Employed optogenetic and chemogenetic techniques to manipulate B4IN activity and basal forebrain (BF) neuron activity.
  • Performed circuit mapping to identify B4IN inputs and outputs, and assessed the impact of ErbB4 inhibition.

Main Results:

  • B4INs exhibited increased activity during avoidance behaviors.
  • Inhibition or activation of B4INs was sufficient to modulate avoidance.
  • B4INs receive direct input from BF glutamatergic neurons and exert inhibitory control over downstream avoidance-associated neurons.

Conclusions:

  • ErbB4-positive interneurons in the PFC play a causal role in mediating avoidance behaviors.
  • B4INs function by inhibiting excitatory neurons, thereby facilitating avoidance.
  • ErbB4 kinase activity is essential for B4IN-mediated avoidance behaviors.