Seo Chai Lee, Lee Jang-Han
Department of Neuropsychiatry, Seoul National University Hospital, Seoul, South Korea.
Department of Psychology, Chung-Ang University, Seoul, South Korea.
Front Psychiatry. 2021 Mar 4;12:606296. doi: 10.3389/fpsyt.2021.606296. eCollection 2021.
Individuals with high shape/weight concern (SWC) place disproportionate emphasis on shape and weight in evaluating their self-worth, making them more vulnerable to body-related cues. Binge eaters (BE), who are obsessed with devouring high-calorie foods, would show severe symptomatology, especially when they have clinically high SWC. The present study attempted to elucidate how SWC influences binging based on attentional patterns toward high-calorie food cues. A total of 120 participants were selected and divided into four groups: (1) BE with high SWC, (2) BE with low SWC, (3) healthy controls (HC) with high SWC, and (4) HC with low SWC. BE and SWC status were respectively determined using the Eating Disorder Diagnostic Scale (DSM-5) and the Eating Disorder Examination Questionnaire. All participants completed the same free-viewing task, measuring initial fixation latency and total fixation duration. BE with high SWC showed attentional bias toward high-calorie food cues in terms of significantly faster initial fixation latency and longer total fixation duration, whereas BE with low SWC and the HC groups did not show any differences. The results revealed that SWC level makes unique contributions to BE's initial orienting bias toward and difficulty disengaging from high-calorie food cues. This may indicate that BE with high SWC merely worry about eating high-calorie food in a cognitive way, but not controlling actual binging behavior. The current study of attentional bias elucidated the role of SWC as a potential maintenance factor of being concerned and binging in BE.
对体型/体重关注度高（SWC）的个体在评估自我价值时过度强调体型和体重，这使他们更容易受到与身体相关线索的影响。暴饮暴食者（BE）痴迷于吞食高热量食物，会表现出严重的症状，尤其是当他们临床上SWC较高时。本研究试图基于对高热量食物线索的注意模式，阐明SWC如何影响暴饮暴食。总共选取了120名参与者并将其分为四组：（1）高SWC的BE组，（2）低SWC的BE组，（3）高SWC的健康对照组（HC），以及（4）低SWC的HC组。分别使用饮食失调诊断量表（DSM-5）和饮食失调检查问卷来确定BE和SWC状态。所有参与者都完成了相同的自由观看任务，测量初始注视潜伏期和总注视持续时间。高SWC的BE组在初始注视潜伏期显著更快且总注视持续时间更长方面表现出对高热量食物线索的注意偏向，而低SWC的BE组和HC组则没有表现出任何差异。结果表明，SWC水平对BE组对高热量食物线索的初始定向偏向和难以脱离该线索做出了独特贡献。这可能表明，高SWC的BE组只是在认知上担心食用高热量食物，而不是控制实际的暴饮暴食行为。当前对注意偏向的研究阐明了SWC作为BE组中关注和暴饮暴食的潜在维持因素的作用。
