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Updated: Sep 15, 2025
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Using the Threat Probability Task to Assess Anxiety and Fear During Uncertain and Certain Threat
Published on: September 12, 2014
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Anhedonia influences threat avoidance and relief: A conceptual replication
Lu Leng1,2, Tom Beckers1,2, Bram Vervliet3,2
1Center for the Psychology of Learning and Experimental Psychopathology, KU Leuven, Belgium.
Journal of Mood and Anxiety Disorders
|July 14, 2025
Summary
Anhedonia, a reduced ability to experience pleasure, may lead to insufficient threat avoidance. This study suggests impaired relief from avoiding threats in anhedonia reduces future avoidance behaviors.
Area of Science:
- Psychology
- Neuroscience
- Behavioral Science
Background:
- Active threat avoidance is adaptive but can become maladaptive.
- Excessive avoidance in anxiety disorders is well-studied.
- Insufficient avoidance in genuine threat situations is less understood.
Purpose of the Study:
- To investigate the link between anhedonia and insufficient active threat avoidance.
- To test if anhedonia impairs the relief experienced after successful threat avoidance.
- To determine if reduced relief impacts future avoidance responses.
Main Methods:
- Utilized an avoidance learning paradigm with 40 participants.
- Participants learned to avoid electrical stimulation signaled by threat cues.
- Measured self-reported relief after threat omissions and recorded avoidance actions.
Main Results:
- Higher anhedonia scores correlated with weaker self-reported relief after threat omissions.
- Individuals with higher anhedonia performed fewer avoidance actions for avoidable threats.
- Anhedonia appears to attenuate the pleasant experience of relief from threat omission.
Conclusions:
- Anhedonia may undermine the reinforcing effects of successful threat avoidance.
- This impairment in relief could lead to reduced future adaptive avoidance behaviors.
- Findings suggest a novel mechanism linking anhedonia to potentially maladaptive threat responses.
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