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Extinction Training During the Reconsolidation Window Prevents Recovery of Fear
11:17

Extinction Training During the Reconsolidation Window Prevents Recovery of Fear

Published on: August 24, 2012

Erasing fear memories with extinction training.

Gregory J Quirk1, Denis Paré, Rick Richardson

  • 1Department of Psychiatry, University of Puerto Rico School of Medicine, San Juan 00936-5067, Puerto Rico. gjquirk@yahoo.com

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|November 12, 2010
PubMed
Summary
This summary is machine-generated.

Extinction training can erase fear memories by targeting specific timing, especially during memory reconsolidation. This approach updates fear associations to safety, preventing fear recurrence in both rats and humans.

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Published on: February 23, 2015

Area of Science:

  • Neuroscience
  • Behavioral Psychology
  • Memory Research

Background:

  • Classical conditioning establishes fear memories resistant to extinction.
  • Research traditionally focused on inhibition, not erasure, of fear memories.
  • Recent discoveries reveal mechanisms for fear memory destabilization and erasure.

Purpose of the Study:

  • To explore novel extinction protocols for erasing fear memories.
  • To investigate the role of timing in extinction-induced fear memory erasure.
  • To examine how developmental factors and memory reconsolidation influence extinction efficacy.

Main Methods:

  • Studies in young and adult rats to assess developmental effects on extinction.
  • Extinction training during memory reconsolidation phase.
  • Behavioral assessments of fear memory and its updating to safety.
  • Exploration of pharmacological strategies complementing extinction.

Main Results:

  • Extinction erases fear in very young rats, a capacity lost with amygdala perineuronal net development.
  • Extinction during reconsolidation updates fear memories to safety, preventing fear return.
  • This reconsolidation-based extinction is effective in both rats and humans.

Conclusions:

  • Fear memory erasure is possible through precisely timed extinction protocols.
  • Developmental changes, like perineuronal nets, impact extinction effectiveness.
  • Targeting memory reconsolidation offers a promising strategy for treating fear-related disorders.