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首页> 外文期刊>Journal of vision >Attentional bias for body-related visual stimuli in eating disorder tendency.
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Attentional bias for body-related visual stimuli in eating disorder tendency.

机译：饮食失调倾向中与身体相关的视觉刺激的注意偏见。

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It has been suggested that patients with eating disorders have a distorted body image and show an attentional bias for information related to the human body. However, little is known about the relationship between attentional properties and eating behaviors of healthy volunteers. Therefore, attentional bias for body-related information in female undergraduate participants, without eating disorders that volunteered was investigated. First, the Eating Disorders Inventory (EDI-91), a questionnaire assessing the eating disorder tendency was administered to the participants. Then, we conducted an experiment using the visual search paradigm. Participants were shown stimuli consisting of pictures of the human body and neutral stimuli not related to the body in a target, or a distractor condition using a computer display. Either four pictures in the same category (target absent trial), or three pictures in the same and one in a different category (target present trial) were presented simultaneously. Participantsa?? judged whether the four presented stimuli were the same, or included one stimulus of a different category by pressing a key. Their reaction times (RT) and electroencephalograms were recorded. Results indicated that the RTs were faster in the human body condition than in the neutral target and neutral distractor condition. Moreover, participants with high body dissatisfaction (BD) as measured by EDI-91 subscale detected human body related stimuli faster than neutral stimuli. Furthermore, the amplitude of N2 event-related potential correlated with BD in the body stimuli distractor condition. These results suggest that body stimuli facilitate an attention shift, and therefore they might cost few attentional resources in participants with a high eating disorder tendency. This attentional bias correlates with BD in various aspects of the eating disorder tendency and occurs in several levels of cognition.
机译：已经提出，饮食失调的患者的身体图像失真并且对与人体有关的信息表现出注意偏见。然而，关于健康志愿者的注意特性和饮食行为之间的关系知之甚少。因此，调查了女大学生参与者在没有自愿进食的饮食失调情况下对身体相关信息的注意偏见。首先，对饮食失调量表（EDI-91）进行评估饮食失调倾向的问卷调查。然后，我们使用视觉搜索范式进行了实验。使用计算机显示器向参与者显示由人体图片和与目标无关的中性刺激组成的刺激或分散注意力的状态。同时显示四张相同类别的图片（目标缺失试验），或三张相同类别中的图片和一幅在不同类别中（目标当前试验）。参加者？按下一个键，判断所呈现的四个刺激是否相同，或者包含一个不同类别的刺激。记录他们的反应时间（RT）和脑电图。结果表明，RTs在人体条件下比在中性靶标和中性干扰物条件下更快。此外，通过EDI-91分量表测量的具有较高身体不满（BD）的参与者比中性刺激更快地检测到与人体相关的刺激。此外，N2事件相关电位的振幅与身体刺激分散条件下的BD相关。这些结果表明，身体刺激促进注意力转移，因此，对于饮食失调倾向较高的参与者，他们可能花费很少的注意力资源。在饮食失调倾向的各个方面，这种注意力偏差与BD相关，并发生在几个认知水平上。

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