Placanica Jennifer L, Faunce Gavin J, Soames Job R F
Department of Psychology, University of Sydney, NSW, 2006, Australia.
Int J Eat Disord. 2002 Jul;32(1):79-90. doi: 10.1002/eat.10066.
To assess attentional biases associated with food and body shape/weight words in fasted and nonfasted high and low Eating Disorder Inventory-2 (EDI-2) scorers.
Subjects were 56 female first-year undergraduate psychology students, aged 17-24 years, participating for course credit. High and low scorers on the Drive for Thinness and Body Dissatisfaction subscales of the EDI-2 completed alternative modified dot probe tasks containing food words, body shape/weight words, and control words, under fasted and nonfasted conditions.
Fasting increased attentional bias toward high-calorie food words across all subjects. High EDI-2 scorers also showed an attentional bias toward low-calorie words, but only when nonfasted.
Food-related attentional biases, commonly observed in eating disorder patients, may reflect a pervasive concern with food-related stimuli as opposed to being simply a product of chronic hunger. That is, with increasing hunger, high EDI-2 scorers shift their focus away from low-calorie foods to high-calorie foods. This result suggests an attentional bias basis for the cycle of high-calorie binging when hungry and low-calorie food selections when less hungry.
评估在禁食和非禁食状态下,饮食失调量表-2(EDI-2)得分高和低的受试者对食物及体型/体重相关词汇的注意偏向。
研究对象为56名年龄在17 - 24岁的女性本科一年级心理学专业学生,她们参与研究以获取课程学分。EDI-2中追求瘦身和身体不满分量表得分高和低的受试者,在禁食和非禁食条件下,完成包含食物词汇、体型/体重词汇和控制词汇的替代修改版点探测任务。
禁食增加了所有受试者对高热量食物词汇的注意偏向。EDI-2得分高的受试者在非禁食时也表现出对低热量词汇的注意偏向。
饮食失调患者中常见的与食物相关的注意偏向,可能反映了对与食物相关刺激的普遍关注,而非仅仅是长期饥饿的产物。也就是说,随着饥饿感增加,EDI-2得分高的受试者将注意力从低热量食物转移到高热量食物上。这一结果表明,饥饿时高热量暴饮暴食以及饥饿感较低时选择低热量食物这一循环存在注意偏向基础。