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Updated: Apr 18, 2026

Disrupting Reconsolidation of Fear Memory in Humans by a Noradrenergic β-Blocker

Disrupting Reconsolidation of Fear Memory in Humans by a Noradrenergic β-Blocker

Published on: December 18, 2014

Amygdala-prefrontal interactions in (mal)adaptive learning.

Ekaterina Likhtik¹, Rony Paz²

¹Associate Research Scientist, Department of Psychiatry, 1051 Riverside Drive, Unit 87, Kolb Annex, Room 136, New York, NY 10032, USA.

Trends in Neurosciences

|January 14, 2015

Summary

This summary is machine-generated.

Anxiety disorders involve maladaptive learning, with communication between the basolateral complex of the amygdala (BLA) and medial prefrontal cortex (mPFC) crucial for threat evaluation. Deficient mPFC-BLA interactions can cause generalized fear and anxiety.

Keywords:

amygdala generalization oscillations pavlovian learning prefrontal cortex safety

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Last Updated: Apr 18, 2026

Disrupting Reconsolidation of Fear Memory in Humans by a Noradrenergic β-Blocker

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Published on: December 18, 2014

Ex Vivo Optogenetic Dissection of Fear Circuits in Brain Slices

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Published on: April 5, 2016

Investigating the Neural Mechanisms of Aware and Unaware Fear Memory with fMRI

Investigating the Neural Mechanisms of Aware and Unaware Fear Memory with fMRI

Published on: October 6, 2011

Area of Science:

Neurobiology
Learning models of anxiety
Fear conditioning and extinction

Background:

Anxiety disorders are increasingly understood through learning models, particularly Pavlovian conditioning and extinction.
The basolateral complex of the amygdala (BLA) and medial prefrontal cortex (mPFC) are key brain regions involved in threat and safety evaluation.
Communication within the mPFC-BLA circuit is vital for adaptive learning and emotional regulation.

Purpose of the Study:

To review neural signaling patterns in the mPFC-BLA circuit during learning, expression, and extinction of adaptive behaviors.
To discuss how deficient mPFC-BLA interactions contribute to generalized fear and anxiety in both learned and innate anxiety.
To emphasize findings with cross-species validity in understanding anxiety mechanisms.

Main Methods:

Review of ongoing patterns of neural signaling within the mPFC-BLA circuit.
Discussion of mechanisms underlying deficient mPFC-BLA interactions.
Emphasis on cross-species research findings.

Main Results:

Dynamic communication between the mPFC and BLA is essential for evaluating threat and safety.
Specific neural signaling patterns in the mPFC-BLA circuit are associated with encoding, expression, and extinction of learning.
Dysfunctional mPFC-BLA interactions are implicated in the development of generalized fear and anxiety.

Conclusions:

The mPFC-BLA circuit plays a critical role in the neurobiology of anxiety disorders.
Understanding these interactions offers insights into both learned and innate forms of anxiety.
Cross-species research highlights conserved mechanisms underlying anxiety and fear.