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Related Experiment Videos

Extinction in multiple contexts does not necessarily make extinction less vulnerable to relapse.

Mark E Bouton1, Ana García-Gutiérrez, Jessica Zilski

  • 1Department of Psychology, University of Vermont, Burlington, 05405, USA. mark.bouton@uvm.edu

Behaviour Research and Therapy
|October 4, 2005
PubMed
Summary

Extinguishing fear in multiple contexts did not reduce relapse (renewal) effects. Varying extinction contexts increased fear during extinction but did not prevent later fear renewal.

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Area of Science:

  • Behavioral neuroscience
  • Comparative psychology
  • Learning and memory

Background:

  • Fear conditioning and extinction are fundamental learning processes.
  • Context-specificity of extinction is a key factor in relapse.
  • Renewal is a phenomenon where extinguished fear returns in a different context.

Purpose of the Study:

  • To investigate the impact of extinction in multiple contexts on fear renewal.
  • To determine if varied extinction contexts affect extinction learning and subsequent relapse.
  • To analyze the relationship between extinction behavior and renewal magnitude.

Main Methods:

  • Three experiments using rat subjects were conducted.
  • Fear conditioning followed by extinction trials in single versus multiple contexts.

Related Experiment Videos

  • Testing for fear renewal in a novel or original conditioning context.

    • Main Results:

    • Rats undergoing extinction in multiple contexts showed more fear during extinction than those in a single context.
    • Extinction effectiveness was partially reduced with each context switch.
    • Extinction in multiple contexts did not decrease the magnitude of the subsequent fear renewal effect.

    Conclusions:

    • Extinction across multiple contexts does not necessarily attenuate fear renewal.
    • High levels of responding during extinction do not guarantee less context-specific extinction learning.
    • Contextual factors play a crucial role in the persistence and renewal of learned fear.