Body dysmorphic disorder (BDD) and anorexia nervosa (AN) are characterised by body image disturbance. It has been suggested that poor global integration in visual processing may underlie distorted body image, but empirical studies have yielded mixed results. The current study involved two meta-analyses aimed at examining the extent to which poor global processing is evident in BDD and AN. Studies were identified through a systematic literature search up to October 2020. The BDD search yielded 16 studies and the AN search yielded 18 studies. Random-effect models demonstrated a small pooled effect size for BDD (g = −0.44, 95 % CI −0.70, −0.17, p < 0.001) and a moderate pooled effect size for AN (g = −0.63, 95 % CI −0.77, −0.49, p < .001), with no evidence of significant publication bias for either. The results provide evidence that poor global processing is a transdiagnostic feature of both BDD and AN, although effects may be more pronounced in AN. Our findings highlight the possibility that interventions aimed at promoting global visual processing could prove beneficial in disorders characterised by distorted body image.

身体变形障碍（BDD）和神经性厌食症（AN）的特征是身体图像障碍。有人提出，视觉处理中的整体整合不佳可能是扭曲的人体图像的基础，但是经验研究却得出了混合的结果。当前的研究包括两项荟萃分析，旨在检验在BDD和AN中明显的不良全球加工的程度。截至2020年10月，通过系统的文献检索来鉴定研究。BDD检索产生16项研究，AN检索产生18项研究。随机效应模型表明BDD的合并效应量较小（g = -0.44，95％CI -0.70，-0.17，p <0.001），AN的合并效应量较小（g = -0.63，95％CI -0.77 ，-0.49，p <.001），没有证据表明任何一个都有明显的出版偏见。结果提供了证据，表明不良的整体加工是BDD和AN的一种转诊特征，尽管在AN中影响可能更为明显。我们的研究结果突出表明，旨在促进整体视觉处理的干预措施可能对以身体形象失真为特征的疾病有益。