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Updated: Jul 17, 2025
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Extinction Training During the Reconsolidation Window Prevents Recovery of Fear
Published on: August 24, 2012
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Mindfulness training and exercise differentially impact fear extinction neurocircuitry
Shaked E Leibovitz1, Gunes Sevinc2, Jonathan Greenberg2
1College of Faculty of Arts and Sciences, Harvard University, Cambridge, MA 02138, USA.
Psychological Medicine
|September 1, 2023
Summary
Mindfulness training enhances fear extinction learning by increasing attention to aversive stimuli, leading to reduced distress and improved memory reappraisal. This contrasts with exercise programs, highlighting mindfulness's unique brain effects.
Area of Science:
- Neuroscience
- Psychology
- Cognitive Science
Background:
- Fear extinction is vital for emotional health and resilience.
- Mindfulness training's impact on fear extinction learning remains unclear.
- Understanding these mechanisms can benefit emotional processing.
Purpose of the Study:
- To investigate the effects of mindfulness training on brain mechanisms of fear extinction learning.
- To compare mindfulness-based stress reduction (MBSR) with an exercise-based program.
Main Methods:
- Investigated BOLD activations during fear extinction before and after an 8-week MBSR program (n=49) or exercise program (n=27).
- Used a fear-inducing cue within an extinction paradigm.
- Measured brain activity in response to the cue.
Main Results:
- Both groups showed similar stress reductions.
- The MBSR group demonstrated unique increases in salience network node activation.
- The MBSR group showed enhanced hippocampal engagement.
Conclusions:
- Mindfulness training enhances attention to aversive stimuli.
- This increased attention facilitates reduced subjective distress.
- Mindfulness promotes enhanced reappraisal of fear memories.
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