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Visual Perceptual Processing Abnormalities in Body Dysmorphic Disorder
Joel P Diaz-Fong1,2, Jamie D Feusner3,4,5,6
1Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada.
Current Topics in Behavioral Neurosciences
|May 1, 2024
Summary
Individuals with body dysmorphic disorder (BDD) exhibit altered visual perception, focusing on details rather than the whole picture. This may explain appearance concerns and social misinterpretations, guiding new treatment approaches.
Area of Science:
- Neuroscience
- Psychology
- Ophthalmology
Background:
- Body dysmorphic disorder (BDD) is associated with distorted self-perception.
- Existing research suggests abnormalities in visual processing in BDD patients.
Purpose of the Study:
- To explore the model of aberrant visual perception in BDD.
- To identify how visual processing deficits contribute to BDD symptoms.
- To inform the development of novel therapeutic interventions for BDD.
Main Methods:
- Phenomenological observations in individuals with BDD.
- Review of neuropsychological, psychophysical, and neuroimaging studies.
- Analysis of visual processing characteristics: global/holistic vs. detail/local processing, and visual-attentional biases.
Main Results:
- BDD is characterized by deficient global/holistic visual processing and enhanced detail/local processing.
- Selective visual-attentional biases are observed in individuals with BDD.
- These visual processing alterations may underlie distorted appearance perception and misinterpretation of social cues.
Conclusions:
- Aberrant visual perception is a key feature of BDD.
- Understanding these visual deficits can guide the development of interventions like perceptual retraining.
- Further research using high-temporal-resolution neuroimaging and multisensory integration studies is needed to fully understand visual perception in BDD.
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