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Related Concept Videos

Post-traumatic Stress Disorder01:27

Post-traumatic Stress Disorder

264
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,...
264

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Attention allocation in posttraumatic stress disorder: an eye-tracking study.

Amit Lazarov1,2, Benjamin Suarez-Jimenez3,4, Xi Zhu4

  • 1School of Psychological, Tel-Aviv University, Tel-Aviv, Israel.

Psychological Medicine
|February 26, 2021
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Summary

Individuals with posttraumatic stress disorder (PTSD) exhibit sustained attention to threat. This study found trauma-exposed individuals, especially those with PTSD, focus longer on negative emotional faces compared to neutral ones.

Keywords:
Attention allocationPTSDeye-trackingreliabilitysustained attentiontrauma-exposure

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Area of Science:

  • Cognitive psychology
  • Neuroscience
  • Clinical psychology

Background:

  • Eye-tracking research links sustained attention to threat with posttraumatic stress disorder (PTSD).
  • Previous studies had limitations including small sample sizes, lack of diverse participant groups, and inadequate reporting of task reliability.
  • This study addresses these limitations using an established eye-tracking paradigm to investigate attention in PTSD.

Purpose of the Study:

  • To explore attention processes towards negatively-valenced cues in individuals with PTSD.
  • To compare attention patterns between PTSD patients, trauma-exposed healthy controls (TEHC), and healthy controls (HC).
  • To assess the reliability of the eye-tracking tasks and attention indices used.

Main Methods:

  • Utilized an eye-tracking paradigm with PTSD patients (n=37), TEHC (n=34), and HC (n=30).
  • Participants viewed matrices of negatively-valenced (anger, fear, sadness) and neutral faces.
  • Gaze patterns, internal consistency, and test-retest reliability were analyzed.

Main Results:

  • Trauma-exposed groups (PTSD and TEHC) fixated longer on negative faces than neutral faces; HC showed the opposite pattern.
  • The attentional bias towards negative stimuli was more pronounced in the PTSD group compared to the TEHC group.
  • Reliability analyses indicated adequate internal consistency and test-retest stability.

Conclusions:

  • Sustained attention to negatively-valenced stimuli is a characteristic of PTSD.
  • This sustained attention bias presents a potential therapeutic target for PTSD interventions.
  • Interventions could focus on redirecting attention from negative to neutral stimuli.