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Area of Science:

  • Neuroscience
  • Psychology

Background:

  • Cognitive deficits and dissociative symptoms in Posttraumatic Stress Disorder (PTSD) suggest potential temporal processing issues.
  • Previous research has not systematically investigated temporal processing in chronic PTSD populations.

Purpose of the Study:

  • To examine temporal processing, specifically duration estimation of supra-second visual stimuli, in individuals with PTSD compared to healthy controls.
  • To explore the association between temporal overestimation and cognitive functions like working memory and attention in PTSD.

Main Methods:

  • Utilized data from 59 participants with PTSD and 62 healthy controls from the BRID database.
  • Assessed the ability to estimate the duration of supra-second visual stimuli.

Main Results:

  • Individuals with PTSD significantly overestimated the duration of visual stimuli compared to the control group.
  • PTSD participants exhibited greater variability in their time estimations.
  • Impairments in working memory and attention were correlated with time overestimation in the PTSD group.

Conclusions:

  • Temporal overestimation is a persistent cognitive characteristic in chronic PTSD, even when processing non-emotional stimuli.
  • Time overestimation may serve as a relevant cognitive marker for assessing the neuropsychological profile of individuals with PTSD.