Department of Psychology, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
Department of Psychology, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
Eat Behav. 2021 Jan;40:101471. doi: 10.1016/j.eatbeh.2020.101471. Epub 2020 Dec 24.
This study aimed to investigate differences in attentional processes in response to food cues and body shape concerns according to an individual's level of weight suppression. Among 470 women in their 20s, nonobese participants (body mass index [BMI] <25 kg/m) were divided into two groups according to weight history. If the difference between their highest weight ever and current weight was greater than 10%, they were assigned to the high level of weight suppression (H-WS) group (n = 24); if it was less than 5%, they were assigned to the low level of weight suppression (L-WS) group (n = 29). Self-reported body shape concerns and bulimia nervosa symptoms were assessed. Visual attentional processes were recorded using an eye tracker while participants completed a free-viewing task composed of pairs of high- and low-calorie food cues. After controlling for current BMI, the H-WS group reported higher body shape concerns and higher levels of bulimia nervosa symptoms than did the L-WS group. In the free-viewing task, after controlling for current BMI, body shape concerns, and bulimia nervosa symptoms, the H-WS group had a significantly longer dwell time for high-calorie compared with low-calorie food cues than did the L-WS group, and this difference was observed for the first 1000 ms. Compared with individuals with low weight suppression, the vulnerability to bulimia nervosa symptoms observed in individuals with high weight suppression may be associated with a higher automatic approach tendency toward high-calorie foods after adjusting for body shape concerns.
本研究旨在探讨个体体重抑制水平不同时,对食物线索和身体形象关注的注意力过程的差异。在 470 名 20 多岁的女性中,非肥胖参与者(体重指数 [BMI] <25 kg/m)根据体重史分为两组。如果他们的最高体重与当前体重之间的差异大于 10%,则将其分配到高水平体重抑制(H-WS)组(n = 24);如果差异小于 5%,则将其分配到低水平体重抑制(L-WS)组(n = 29)。评估自我报告的身体形象关注和神经性贪食症症状。使用眼动仪记录视觉注意力过程,同时参与者完成由高热量和低热量食物线索组成的自由观看任务。在控制当前 BMI 后,H-WS 组报告的身体形象关注和神经性贪食症症状比 L-WS 组更高。在自由观看任务中,在控制当前 BMI、身体形象关注和神经性贪食症症状后,与低热量食物线索相比,H-WS 组对高热量食物的注视时间明显更长,而 L-WS 组则更长。与体重抑制水平较低的个体相比,体重抑制水平较高的个体观察到的神经性贪食症症状的脆弱性可能与调整身体形象关注后对高热量食物的更高自动接近倾向有关。