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Related Concept Videos

Post-traumatic Stress Disorder01:27

Post-traumatic Stress Disorder

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Post-traumatic stress disorder (PTSD) is a psychiatric condition that arises following exposure to traumatic events such as natural disasters, forced displacement, or severe accidents. It significantly impairs individuals' ability to cope with daily activities and disrupts their emotional and psychological equilibrium.
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events,...
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Avoidance Learning and Learned Helplessness01:14

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Avoidance learning and learned helplessness are critical concepts in understanding behavioral responses to negative stimuli.
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Traumatic Memory01:20

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Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual...
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Introduction to Stress and Lifestyle01:27

Introduction to Stress and Lifestyle

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Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
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Repressed Memory01:16

Repressed Memory

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Repressed memories are a psychological phenomenon where memories of traumatic events are unconsciously blocked from a person's awareness. This process occurs as a defense mechanism, protecting the mind from the emotional impact of distressing or painful experiences. For example, a person who has experienced childhood trauma may grow up with no conscious recollection of the event. In such cases, the memories are thought to be buried deep within the subconscious, inaccessible to the conscious...
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Preparedness and Phobias01:09

Preparedness and Phobias

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Human fear responses to certain stimuli, such as darkness, heights, deep water, and blood, can often arise despite the absence of direct negative experiences. This phenomenon is rooted in evolutionary psychology, which posits that humans have developed a predisposition to fear stimuli that historically posed significant survival threats. This predisposition, known as preparedness, suggests that early humans who developed a fear of potentially dangerous entities, such as venomous snakes and...
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Related Experiment Video

Updated: Sep 27, 2025

Stress-Enhanced Fear Learning, a Robust Rodent Model of Post-Traumatic Stress Disorder
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Extinction learning as pretrauma vulnerability factor of posttraumatic stress: a replication study.

Miriam J J Lommen1, Yannick Boddez2,3

  • 1Department of Clinical Psychology and Experimental Psychopathology, University of Groningen, Groningen, the Netherlands.

European Journal of Psychotraumatology
|April 15, 2022
PubMed
Summary

This study found that reduced extinction learning did not predict posttraumatic stress disorder (PTSD) symptom severity over time in firefighters. While it correlated with baseline PTSD symptoms, it wasn't a reliable predictor for future PTSD development.

Keywords:
Extinction learningconditioningposttraumatic stress disorderreplicationtrauma

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Area of Science:

  • Psychology
  • Neuroscience
  • Trauma Studies

Background:

  • Extinction learning deficits have been investigated as potential vulnerability factors for developing posttraumatic stress disorder (PTSD).
  • Previous prospective studies suggested a link between reduced extinction learning and PTSD development in high-risk professions.

Purpose of the Study:

  • To conceptually replicate earlier prospective research on extinction learning and PTSD.
  • To investigate whether pre-trauma extinction learning predicts later PTSD symptom severity in a firefighter sample.

Main Methods:

  • A cohort of 529 firefighters completed a conditioning task and PTSD symptom/neuroticism questionnaires at baseline.
  • PTSD symptom severity and stressful event exposure were assessed at 6 and 12-month follow-ups.

Main Results:

  • Reduced extinction learning was associated with higher PTSD symptom severity at baseline.
  • Extinction learning did not predict PTSD symptom severity at the 6 or 12-month follow-ups.
  • Only baseline PTSD symptom severity and stressor severity predicted follow-up PTSD symptom severity.

Conclusions:

  • The findings did not replicate earlier research suggesting pre-trauma extinction learning predicts PTSD.
  • Extinction learning may not be a universal risk factor for PTSD development across all individuals.
  • Further prospective studies incorporating multiple factors are needed to understand PTSD development.