Bauer Lance O
University of Connecticut School of Medicine, Farmington, CT 06030-2103, USA.
Appetite. 2015 Dec;95:310-6. doi: 10.1016/j.appet.2015.07.029. Epub 2015 Jul 29.
The Delboeuf concentric circle illusion is frequently invoked as an explanation for the hypothesized association between dinner plate size and overeating. We examined its association with adiposity among 162 girls, aged 14-18 years. We also examined the association of adiposity with neural and behavioral responses during a separate visual discrimination task. The analysis showed that girls with a body mass index percentile ≥ 85, or with greater triceps skinfold thickness, exhibited less sensitivity to the Delboeuf illusion than girls with normal adiposity. The excess adiposity group also exhibited significantly smaller electroencephalographic responses and more errors during the separate visual discrimination task. In combination, the findings from the two tasks suggest that girls with an elevated body mass are less sensitive to visual cues in their environment. The implications of these findings for weight loss education should be considered.
德尔波夫同心圆错觉常被用来解释餐盘大小与暴饮暴食之间的假设关联。我们研究了162名14至18岁女孩中这种错觉与肥胖的关系。我们还在另一项视觉辨别任务中研究了肥胖与神经及行为反应的关系。分析表明，体重指数百分位≥85或肱三头肌皮褶厚度更大的女孩，对比正常肥胖女孩，对德尔波夫错觉的敏感度更低。在单独的视觉辨别任务中，肥胖过度组的脑电图反应也明显更小，错误更多。综合来看，两项任务的结果表明，体重较高的女孩对周围环境中的视觉线索敏感度较低。应考虑这些发现对减肥教育的启示。
