Abstract：
To understand the visual preponderance of perceived flaws in appearance in body dysmorphic disorder (BDD), the study of visual processing has been growing. Studies have focused on facial and other basic visual stimuli. The current literature does not provide evidence of consistent behavioural patterns, lacking an overarching body of work describing visual processing in BDD. This systematic review aims to characterise behavioural outcomes of visual processing anomalies and/or deficits in BDD. Articles were collected through online databases MEDLINE and PubMed, and were included if they comprised a clinical BDD group, and were published after 1990. Results indicate that individuals with BDD demonstrate deficits in emotional face processing, a possible overreliance on detail processing, aberrant eye-scanning behaviours, and a tendency to overvalue attractiveness. While findings consistently signal towards visual deficits in BDD, there is lack of clarity as to the type. This inconsistency may be attributed to heterogeneity within BDD samples and differences in experimental design (i.e., stimuli, tasks, conditions). There are difficulties distinguishing between BDD-associated deficits and those associated with OCD or eating disorders. A coherent framework, including sample characterisation and task design will seek to generate clear and consistent behavioural patterns to guide future treatments.
摘要：
为了了解身体畸形障碍（BDD）的外观缺陷的视觉优势，视觉处理的研究越来越多。研究集中在面部和其他基本视觉刺激上。目前的文献没有提供一致的行为模式的证据，缺乏描述BDD中视觉处理的总体工作。本系统评价旨在描述BDD中视觉处理异常和/或缺陷的行为结果。文章通过在线数据库MEDLINE和PubMed收集，如果他们包括临床BDD组，1990年后出版。结果表明，患有BDD的个体在情绪面部处理方面表现出缺陷，可能过度依赖细节处理，异常的眼睛扫描行为，以及高估吸引力的倾向。虽然研究结果一致表明BDD的视觉缺陷，缺乏明确的类型。这种不一致性可能归因于BDD样本内的异质性和实验设计的差异(即，刺激,任务,条件)。很难区分与BDD相关的缺陷和与OCD或饮食失调相关的缺陷。一个连贯的框架，包括样本表征和任务设计将寻求产生清晰和一致的行为模式，以指导未来的治疗。
