特质自我控制对食物线索注意偏向的影响及干预:来自眼动的证据  

Effect of Self-Control Trait on Attentional Bias of Food Cues and Its Intervention: Evidence from Eye Movements

作　　者：高晓雷[1] 李天贽 白学军[2] 高蕾[1] Gao Xiaolei;Li Tianzhi;Bai Xuejun;Gao Lei(Plateau Brain Science Research Center,Tibet University,Lhasa,850000;Faculty of Psychology,Tianjin Normal University,Tianjin,300387)

机构地区：[1]西藏大学高原脑科学研究中心,拉萨850000 [2]天津师范大学心理学部,天津300387

出　　处：《心理科学》2023年第1期25-33,共9页Journal of Psychological Science

基　　金：国家自然科学基金项目(32260204);西藏自治区自然科学基金项目(XZ2019ZRG-22);西藏大学培育基金项目(ZDTSJH21-04);西藏大学2020年度中央支持地方高校改革发展资金(00060607)的资助。

摘　　要：为探讨特质自我控制对食物线索注意偏向的影响及干预,本研究采用眼动技术,设计了两个实验。实验1通过经典点探测任务考察特质自我控制对食物线索注意偏向的影响,实验2通过修改的点探测任务考察注意偏向训练的干预效果。结果发现,对于高热量食物线索,低特质自我控制水平女性表现出了更强的注意偏向;注意偏向训练有效降低了低特质自我控制水平女性对高热量食物线索注意偏向的强度。上述结果表明,特质自我控制影响个体对食物线索的注意偏向,注意偏向训练能有效改变个体对食物线索注意偏向的强度。Attentional bias is the individual’s selective attention to the information outside. Some studies have found that the excessive attentional bias to high-calorie food cues is one of the important reasons for the generation and maintenance of irrational eating behaviors. Therefore, it is of great significance to explore the attentional bias of individuals to food cues and intervene in the process of attentional bias for maintaining a reasonable diet and healthy weight.In this study, the eye-movement tracking technology and the dot-probe task were used to investigate the attentional bias of individuals with different self-control levels towards food cues and the intervention effect of modified point detection task on changing the intensity of attentional bias.To this end, a 2(self-control level: high, low) ×2(image type: image of high-calorie foods, image of low-calorie foods) mixed design was used in Experiment 1. The image type was the within-subjects factor, and the self-control level was the between-subjects factor. The images(images of high-calorie foods, images of low-calorie foods and neutral images) were used as materials to explore the differences in attentional bias to food cues between high and low self-controllers. A total of 60 participants(30 high self-controllers, and 30 low self-controllers) took part in Experiment 1. The materials were presented in the form of picture pairs, and the participants were required to respond to the location of the detection points. EyeLink 1000 Plus eye-movement recorder was used in this experiment. The eye tracker recorded the orientation of the participants’ first fixation, the time to first fixation,the first fixation duration and the total fixation duration. We found that participants with low self-control had a stronger attentional bias to high-calorie food cues. Specifically, participants with high self-control showed the attentional vigilance, early attentional maintenance, and general attentional avoidance in response to high-calorie food cues. Participants

关 键 词：特质自我控制 注意偏向 注意偏向训练 眼动 

分 类 号：B842.3[哲学宗教—基础心理学]