Linking Grazing to Inhibition and Goal-Directed Behaviour in Obesity With and Without Eating Disorder Features

IF 1.5 4区 心理学 Q3 PSYCHOLOGY, CLINICAL Behaviour Change Pub Date : 2020-09-28 DOI:10.1017/BEC.2020.12
Andreea I. Heriseanu, P. Hay, S. Touyz
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Abstract

Recent models of obesity and eating behaviour have implicated both automatic responding to food-related cues and executive functioning in driving dietary choice. This study aimed to relate grazing severity to high weight with and without significant eating disorder features via the effects of inhibition and degree of goal-directed behaviour, in persons with obesity with and without significant eating disorder features compared to healthy controls. Forty-four participants with obesity (43.1% endorsing marked eating disorder features), and 43 healthy-weight age- and sex-matched participants (N = 87; 67.8% female, age = 28.57 (8.70; 18.18–58.34) years, BMI = 29.18 (7.80; 18.65–51.95) kg/m2) completed demographic and eating disorder-related questionnaires, a neuropsychological task of inhibition and an instrumental decision-making task. Bootstrapped serial mediation analyses were performed to examine the effect of group on grazing via goal-directed behaviour and inhibition. While significant differences existed between the groups in terms of inhibition, goal-directed behaviour and grazing severity, the effect of group on grazing severity was not found to be mediated by the degree of behavioural goal-directedness and inhibition. Therefore, :in persons with obesity with or without eating disorder symptoms, putative relationships between a reduced inhibitory profile and/or behaviour that is less flexible and goal-directed and eating behaviours such as grazing, remain unclear.
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在有或没有饮食失调特征的肥胖中,将放牧与抑制和目标导向行为联系起来
最近的肥胖和饮食行为模型表明,对食物相关线索的自动反应和驱动饮食选择的执行功能。与健康对照组相比,本研究旨在通过抑制和目标导向行为的程度,将具有和不具有显著饮食障碍特征的肥胖者的放牧严重程度与具有和不存在显著饮食障碍特点的高体重联系起来。44名肥胖参与者(43.1%的人支持明显的饮食障碍特征)和43名健康体重、年龄和性别匹配的参与者(N=87;67.8%的女性,年龄=28.57(8.70;18.18-58.34)岁,BMI=29.18(7.80;18.65-51.95)kg/m2)完成了人口统计学和饮食障碍相关问卷、抑制的神经心理学任务和工具性决策任务。进行自举系列中介分析,通过目标导向行为和抑制来检验群体对放牧的影响。虽然两组在抑制、目标导向行为和放牧严重程度方面存在显著差异,但未发现行为目标导向和抑制程度介导了组对放牧严重程度的影响。因此,在有或没有饮食障碍症状的肥胖者中,抑制性特征和/或不那么灵活和目标导向的行为与放牧等饮食行为之间的假定关系仍不清楚。
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来源期刊
Behaviour Change
Behaviour Change PSYCHOLOGY, CLINICAL-
CiteScore
2.70
自引率
0.00%
发文量
24
期刊介绍: Behaviour Change is the journal of the Australian Association for Cognitive and Behavioural Therapy and has long been considered a leader in its field. It is a quarterly journal that publishes research involving the application of behavioural and cognitive-behavioural principles and techniques to the assessment and treatment of various problems. Features of Behaviour Change include: original empirical studies using either single subject or group comparison methodologies review articles case studies brief technical and clinical notes book reviews special issues dealing with particular topics in depth.
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