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Related Experiment Video

Updated: May 19, 2026

Assessment of Stress Effects on Cognitive Flexibility using an Operant Strategy Shifting Paradigm

Assessment of Stress Effects on Cognitive Flexibility using an Operant Strategy Shifting Paradigm

Published on: May 4, 2020

Stress-coping behavior during predator odor exposure is associated with differences in decision making.

Brooke N Bender¹, Madison E Hoffman¹, Caroline G Krieman¹

¹Bowles Center for Alcohol Studies.

Biorxiv : the Preprint Server for Biology

|May 18, 2026

Summary

Stress coping behaviors in rats predict future decision-making deficits and altered motivation for rewards. Active coping during stress is linked to increased impulsivity and altered reward-seeking behaviors post-stress, impacting risk for psychiatric disorders.

Keywords:

PTSD alcohol alcohol preference impulsive choice impulsivity predator odor stress

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Social Threat-Safety Test Uncovers Psychosocial Stress-Related Phenotypes

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Published on: December 15, 2023

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Last Updated: May 19, 2026

Assessment of Stress Effects on Cognitive Flexibility using an Operant Strategy Shifting Paradigm

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Published on: May 4, 2020

Social Threat-Safety Test Uncovers Psychosocial Stress-Related Phenotypes

Social Threat-Safety Test Uncovers Psychosocial Stress-Related Phenotypes

Published on: December 15, 2023

Area of Science:

Neuroscience
Behavioral Science
Psychiatry

Background:

Post-traumatic stress disorder (PTSD) and alcohol use disorder (AUD) share overlapping symptoms and risk factors, including altered motivation and impulsivity.
Stress-coping behaviors in rats, such as freezing or digging, can predict long-term behavioral and neurobiological changes.

Purpose of the Study:

To investigate the relationship between stress-coping behaviors during predator odor stressor (TMT) exposure and decision-making aspects in rats.
To assess how stress coping influences alcohol and sucrose self-administration and motivation for reinforcers.

Main Methods:

Rats were exposed to a predator odor stressor (TMT) and their coping behaviors (freezing, digging) were recorded.
Decision-making was assessed using delay discounting tasks before and after TMT exposure.
Alcohol and sucrose self-administration and motivation were evaluated using concurrent choice and progressive ratio procedures.

Main Results:

Active coping (digging) during TMT exposure correlated with increased impulsive choice post-stress.
TMT-exposed rats showed reduced sucrose seeking behaviors and motivation.
TMT exposure increased motivation for both alcohol and sucrose when offered concurrently.

Conclusions:

Behavior during stress predicts susceptibility to decision-making impairments and altered reward motivation.
Findings suggest stress coping behavior can identify individuals at higher risk for negative behavioral outcomes after trauma.
This research may inform future studies on the neurobiology of aberrant reward behaviors following traumatic events.