Cognitive bias in acute stress disorder

Area of Science:

• Psychology
• Trauma Studies
• Cognitive Science

Background:

• Motor vehicle accidents are a common cause of trauma.
• Acute stress disorder (ASD) is a potential consequence of traumatic events.
• Cognitive biases may play a role in the development and maintenance of posttraumatic stress.

Purpose of the Study:

• To investigate cognitive bias in motor vehicle accident survivors.
• To compare cognitive bias between survivors with and without acute stress disorder (ASD).
• To identify predictors of cognitive bias in this population.

Main Methods:

• Participants: 34 motor vehicle accident survivors (17 with ASD, 17 without ASD).
• Measures: Acute Stress Disorder Interview, Beck Depression Inventory, Beck Anxiety Inventory, Impact of Event Scale (IES), Probability Questionnaire (PQ), Cost Questionnaire (CQ).
• Data Collection: Within four weeks of the accident.

Main Results:

• ASD participants exhibited significantly greater exaggeration of negative event probability (PQ scores) and adverse event cost (CQ scores) compared to non-ASD participants.
• Impact of Event Scale-Avoidance scores were the sole significant predictors for both PQ and CQ scores.
• These findings suggest a link between avoidance behaviors and cognitive biases in trauma survivors.

Conclusions:

• Cognitive biases, specifically the exaggeration of negative event probability and cost, are more pronounced in motor vehicle accident survivors with acute stress disorder.
• Avoidance symptoms are key indicators of cognitive bias in the context of posttraumatic adjustment.
• Understanding these cognitive errors is crucial for developing effective interventions for posttraumatic adjustment.