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身体不满和对瘦体的注意偏向。

Body dissatisfaction and attentional bias to thin bodies.

机构信息

School of Psychology, University of Western Australia, Perth, Australia.

出版信息

Int J Eat Disord. 2010 Jan;43(1):42-9. doi: 10.1002/eat.20663.

Abstract

OBJECTIVE

Evidence for attentional biases to weight- and shape-related information in women with eating concerns is inconclusive.

METHOD

We investigated whether body dissatisfaction is associated with an attentional bias toward thin bodies using a modified dot probe task.

RESULTS

In three studies, we found that undergraduate females were faster to discriminate the direction of an arrow cue when it appeared in the location previously occupied by a thin than a fat body. This attentional bias toward thin bodies was found using extreme stimuli (thin and fat bodies) presented for 500 ms (Experiment 1), extreme stimuli presented for 150 ms (Experiment 2), and less extreme stimuli that were equated for perceived extremity, presented for 150 ms (Experiment 3). When the stimuli were equated on perceptual extremity, the more dissatisfied a woman was with her body, and the larger her own BMI, the less of an attentional bias she showed toward thin bodies.

DISCUSSION

Our results indicate that women have an attentional bias to thin bodies, which appears to be automatic. Contrary to prediction, this bias was weaker in women with greater BMI and body dissatisfaction. This result offers no support for the view that selective attention to thin bodies is causally related to body dissatisfaction.

摘要

目的

有关进食问题女性对体重和体型相关信息存在注意力偏差的证据尚无定论。

方法

我们使用改良的点探测任务来研究身体不满是否与对瘦体型的注意力偏向有关。

结果

在三项研究中,我们发现,当箭头提示出现在之前呈现过瘦体型而非胖体型的位置时,本科女性能更快地辨别箭头的方向。这种对瘦体型的注意力偏向在使用呈现 500 毫秒的极端刺激(瘦和胖体型)(实验 1)、呈现 150 毫秒的极端刺激(实验 2)以及感知极端程度相等、呈现 150 毫秒的不那么极端的刺激(实验 3)时都能发现。当刺激在感知极端程度上相等时,女性对自己身体的不满程度越大,BMI 越大,对瘦体型的注意力偏向越小。

讨论

我们的结果表明,女性对瘦体型存在注意力偏向,这种偏向似乎是自动的。与预测相反,BMI 和身体不满程度较高的女性的这种偏差较弱。该结果不支持选择性注意瘦体型与身体不满有关的观点。

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