侵入性意象在大学生身体不满意和进食障碍风险关系中的中介作用和情绪策略的调节作用  

The mediation role of intrusive imagery and the moderating effect of emotion regulation strategies in the relationship between body dissatisfaction and risk of eating disorders

作　　者：杨发辉 刘诗雨 齐乐 曹琦棵 吕卓澜 唐蔓 周哲晗 刘莹 徐木子 胡雯 Yang Fahui;Liu Shiyu;Qi Le;Cao Qike;Lyu Zhuolan;Tang Man;Zhou Zhehan;Liu Ying;Xu Muzi;Hu Wen(Faculty of Psychology,Southwest University,Chongqing 400715,China;School of Gerenal Education,Chongqing City Management College,Chongqing 401331,China;Department of Applied Psychology,Mindrun Educational Technology Co.,Ltd.,Shenzhen 518101,China)

机构地区：[1]西南大学心理学部,重庆400715 [2]重庆城市管理职业学院通识教育学院,重庆401331 [3]深圳爱有方教育科技有限公司,深圳518101

出　　处：《中华精神科杂志》2022年第6期436-444,共9页Chinese Journal of Psychiatry

摘　　要：目的探讨大学生群体中侵入性意象对于身体不满意与进食障碍风险之间可能的中介途径,以及情绪调节在其中的作用。方法采用方便抽样法,通过网络平台在线发放心理评估工具,包括身体部位的满意度和不满意量表(Satisfaction and Dissatisfaction with Body Parts Scale)、侵入性意象量表(Intrusive Visual Imagery Questionnaire,IVIQ)、进食障碍调查问卷(Eating Disorder Inventory,EDI)和情绪调节问卷(Emotion Regulation Questionnaire,ERQ),对4座城市的5746名大学生身体不满意程度、侵入性意象倾向水平、进食障碍风险、情绪调节策略使用频率进行问卷调查。通过有调节的中介模型分析侵入性意象在身体不满意与进食障碍风险之间可能的中介作用,以及认知重评和表达抑制的调节作用,并采用简单斜率进一步分析。结果中介效应检验结果显示,身体不满意与进食障碍风险之间存在显著的正向效应(β=0.19,t=13.03,P<0.01),且放入中介变量侵入性意象后,该正向效应仍然显著(β=0.09,t=7.00,P<0.01)。认知重评和表达抑制的调节效应检验结果显示,这两种情绪调节策略对身体不满意与侵入性意象以及身体不满意与进食障碍风险的正向效应都有显著的调节作用。简单斜率分析结果显示,认知重评使用倾向较高的被试者较使用倾向较低的被试者,身体不满意与侵入性意象的正向效应更高(简单斜率分别为0.28和0.24,P<0.01),身体不满意与进食障碍风险间的正向效应也更高(简单斜率分别为0.29和0.23,P<0.01)。同样表达抑制使用倾向较高的被试者较使用倾向较低的被试者,身体不满意与侵入性意象的正向效应更高(简单斜率分别为0.27和0.21,P<0.01),身体不满意与进食障碍风险间的正向效应也更高(简单斜率分别为0.25和0.17,P<0.01)。结论侵入性意象在身体不满意和进食障碍风险的相关性中起中介作用。同时认知重评和表达抑制两种Objective The present study aims to determine the potential mediating role of intrusive imagery in the correlation between body dissatisfaction and the risk of eating disorders in college students.The effects of cognitive reappraisal and expressive suppression were also investigated.Methods Using convenient sampling method,a total of 5746 participants from four cities in China completed on line the Satisfaction and Dissatisfaction with Body Parts Scale,Intrusive Visual Imagery Questionnaire,Eating Disorder Inventory,and Emotion Regulation Questionnaire to investigate the level of body dissatisfaction,the level of intrusive imagery,the risk of eating disorders,and the utilization of emotion regulation strategies in college students.Mediational analysis with multiple regression were conducted to reveal the potential roles of intrusive imagery as a mediation factor and the two emotion regulation strategies as moderators.Results Body dissatisfaction was positively related to the risk of eating disorders(β=0.19,t=13.03,P<0.01).This correlation remained significant when intrusive imagery was introduced as a mediating factor(β=0.09,t=7.00,P<0.01).Both cognitive reappraisal and expressive suppression could moderate the relationship of body dissatisfaction and intrusive imagery,as well as the relationship of body dissatisfaction and the risk of eating disorders.Simple slope analysis showed that higher tendency of using cognitive reappraisal was associated with enhanced impact of body dissatisfaction on invasive imagery(simple slope=0.28 and 0.24,for high score cognitive-reappraisal individuals and low-score ones,respectively,P<0.01)and on the risk of eating disorders(simple slope=0.29 and 0.23,for high-score and low-score individuals,respectively,P<0.01).Similarly,higher tendency of using expressive suppression was associated with enhanced impact of body dissatisfaction on invasive imagery(simple slope=0.27 and 0.21,for high score expressive-suppression individuals and low-score ones,respectively,P<0.01)and on the risk

关 键 词：进食障碍 身体不满意 侵入性意象 认知重评 表达抑制 

分 类 号：G444[哲学宗教—心理学]