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Related Experiment Videos

Avoidant encoding in acute stress disorder: a prospective study.

Michelle L Moulds1, Richard A Bryant

  • 1School of Psychology, The University of New South Wales, Sydney, Australia. m.moulds@unsw.edu.au

Depression and Anxiety
|October 16, 2007
PubMed
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Individuals with acute stress disorder (ASD) show altered memory encoding, particularly for positive information, suggesting a trait-like processing style. This impacts their posttraumatic adjustment and recall abilities.

Area of Science:

  • Psychology
  • Cognitive Neuroscience
  • Trauma Studies

Background:

  • Posttraumatic adjustment is complex, influenced by cognitive processes.
  • Encoding style, how individuals process information, may play a role in trauma recovery.
  • Acute stress disorder (ASD) is a precursor to PTSD, offering a window into early trauma responses.

Purpose of the Study:

  • To investigate the relationship between posttraumatic adjustment and encoding style.
  • To examine how individuals with ASD and healthy controls process different types of information (trauma-related, positive, neutral).
  • To assess changes in encoding style over one year in relation to trauma exposure.

Main Methods:

  • Utilized the item method of directed forgetting paradigm.
  • Included participants with acute stress disorder (ASD) and non-traumatized controls.

Related Experiment Videos

  • Assessed memory encoding for trauma-related, positive, and neutral words at two time points (Time 1 and Time 2, one year apart).

    • Main Results:

    • At Time 1, ASD participants showed directed forgetting for trauma and neutral words, while controls did for all word types.
    • At Time 2, controls maintained directed forgetting across all word types.
    • ASD participants only showed directed forgetting for neutral words at Time 2, with absent effects for positive words.

    Conclusions:

    • Individuals with ASD may possess a trait-like encoding style for positive material, differing from controls.
    • This altered processing of positive information might influence ongoing posttraumatic adjustment.
    • Encoding style differences could be a key factor in understanding the trajectory of trauma recovery.