School of Psychology, Flinders University, Adelaide, Australia.
Appetite. 2010 Apr;54(2):309-13. doi: 10.1016/j.appet.2009.12.005. Epub 2009 Dec 11.
The study aimed to investigate attentional bias for food cues among restrained eaters. In particular, the roles of speeded detection (enhanced orientation of attention toward food stimuli) and slowed disengagement (trouble disengaging attention from food stimuli) were examined. Participants were 78 female undergraduate students aged 18-25 years, classified as restrained (N=38) or unrestrained eaters (N=40). Attentional bias was assessed by a visual search task which required participants to locate the position of an odd-one-out target word in a matrix of 19 distractor words. Restrained eaters were disproportionately faster than unrestrained eaters to detect a food word within a neutral matrix compared to a neutral word within a neutral distractor matrix. Restrained eaters were also disproportionately faster, rather than slower, than unrestrained eaters to detect a neutral word within a food matrix compared to a neutral word within a neutral distractor matrix. Thus restrained eaters show a heightened vigilance for food cues, but no slower disengagement from such cues.
本研究旨在调查节食者对食物线索的注意力偏向。具体来说，研究了快速检测（增强对食物刺激的注意力定向）和缓慢脱离（难以将注意力从食物刺激中脱离）的作用。参与者为 78 名年龄在 18 至 25 岁之间的女性本科学生，分为节食者（n=38）和非节食者（n=40）。通过视觉搜索任务评估注意力偏向，要求参与者在 19 个干扰词矩阵中找到一个异类目标词的位置。与在中性干扰词矩阵中检测中性词相比，节食者在中性矩阵中检测到食物词的速度不成比例地更快。与在中性干扰词矩阵中检测中性词相比，节食者在食物矩阵中检测到中性词的速度也不成比例地更快，而不是更慢。因此，节食者对食物线索表现出更高的警惕性，但对这些线索的脱离速度没有变慢。
