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Altering Visual Perception Abnormalities: A Marker for Body Image Concern.

Francesca L Beilharz1, Kelly J Atkins1, Anna J F Duncum1

  • 1School of Psychological Sciences and Monash Institute of Cognitive and Clinical Neurosciences, Monash University, Clayton, Victoria, Australia.

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|March 23, 2016
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Summary
This summary is machine-generated.

Individuals with higher body image concern show a local visual processing bias, potentially marking body dysmorphic disorder (BDD). This bias can be temporarily reversed, offering new avenues for BDD treatment.

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Area of Science:

  • Cognitive Psychology
  • Clinical Psychology
  • Neuroscience

Background:

  • Body image concern (BIC) exists on a continuum from healthy to clinical conditions like body dysmorphic disorder (BDD).
  • Individuals with BDD and high BIC often exhibit a local visual processing bias, evidenced by reduced inversion effects.
  • Understanding this bias may offer insights into BDD assessment and treatment.

Purpose of the Study:

  • To investigate if a local visual processing bias serves as a marker for BDD across the entire BIC spectrum.
  • To examine the correlation between Dysmorphic Concern Questionnaire (DCQ) scores and visual processing characteristics.
  • To determine if experimentally induced global or local processing biases alter the relationship between BIC and visual processing.

Main Methods:

  • Seventy-four participants completed the DCQ and a task discriminating upright versus inverted faces and bodies.
  • Visual processing was assessed by measuring discrimination accuracy and reaction times for inverted stimuli.
  • Navon stimuli were used to induce global or local processing biases.

Main Results:

  • A positive association was found between DCQ scores and accuracy for inverted stimuli, indicating a graded local bias with increasing BIC.
  • This graded local bias supports the use of visual processing patterns as a potential marker for BDD.
  • Inducing global processing reversed the association between BIC and inverted face accuracy, suggesting temporary modulation of the bias.

Conclusions:

  • A local visual processing bias is associated with increasing body image concern and may serve as a marker for BDD.
  • The findings have significant implications for the assessment of BDD.
  • Experimental manipulation of processing bias, such as with Navon stimuli, can alter visual processing in individuals with high BIC, suggesting potential therapeutic applications for BDD.