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Executive function in body dysmorphic disorder.

J Dunai1, I Labuschagne, D J Castle

  • 1School of Behavioural Science, Department of Psychology, University of Melbourne, Melbourne, Australia.

Psychological Medicine
|December 3, 2009
PubMed
Summary
This summary is machine-generated.

Individuals with Body Dysmorphic Disorder (BDD) exhibit executive function deficits, particularly in information manipulation and planning. These findings suggest potential frontal lobe dysfunction in BDD patients.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Cognitive Psychology

Background:

  • Body Dysmorphic Disorder (BDD) is characterized by preoccupation with perceived flaws.
  • Neuropsychological studies in BDD are limited, with prior research suggesting executive dysfunction.
  • This study aimed to further delineate executive deficits in BDD.

Purpose of the Study:

  • To investigate executive function (EF) in individuals with Body Dysmorphic Disorder (BDD).
  • To identify specific cognitive deficits related to information processing, planning, and spatial memory in BDD.
  • To explore potential links between executive dysfunction and frontal lobe activity in BDD.

Main Methods:

  • 14 DSM-IV BDD patients and 14 matched controls participated.
  • Participants completed executive function tests: Spatial Span (SS), Spatial Working Memory (SWM), Stockings of Cambridge (SOC).
  • Visual memory was assessed using the Pattern Recognition (PR) test.

Main Results:

  • BDD participants showed increased errors in Spatial Working Memory (SWM), indicating difficulties in information maintenance and manipulation.
  • Slower planning times were observed in BDD participants on the Stockings of Cambridge (SOC) task.
  • No significant differences were found in Spatial Span (SS) or Pattern Recognition (PR) scores between groups.

Conclusions:

  • BDD patients exhibit specific executive function deficits in information manipulation, planning, and organization.
  • Cognitive functions such as spatial memory capacity, motor speed, and visual memory appear to be intact.
  • Findings suggest potential frontal lobe dysfunction in Body Dysmorphic Disorder, consistent with neuroimaging evidence.