Conceição Eva M, Moreira Célia S, de Lourdes Marta, Ramalho Sofia, Vaz Ana Rita
Psychotherapy and Psychopathology Research Unit - Psychology Research Centre, School of Psychology, University of Minho, Braga, Portugal.
Department of Mathematics and Center of Mathematics (FCUP-CMUP), University of Porto, Porto, Portugal.
Front Psychol. 2022 Feb 11;12:787558. doi: 10.3389/fpsyg.2021.787558. eCollection 2021.
Loss of control (LOC) eating has been directly related to the core aspects of the psychopathology of eating disorders and to different dimensions of emotion and behavior regulation and self-criticism. This study investigates a model representing the interplay between these dimensions to understand LOC eating among a nonclinical sample.
A total of 341 participants, recruited in a college campus (mean age 23.21, SD = 6.02), completed a set of self-report measures assessing LOC eating, weight suppression, psychopathology of eating disorders, depression, negative urgency, emotion regulation difficulties, and self-criticism. Path analysis modeling tested a hypothesized model with 3 paths for LOC eating as follows: (1) psychopathology of eating disorders; (2) emotion and behavior regulation; and (3) interplay between these paths.
We found goodness-of-fit indexes to our data: χ = 17.11, df = 10, Comparative Fit Index (CFI) = 0.99, Tucker-Lewis index (TLI) = 0.98, Root Mean Square Error Approximation (RMSEA) = 0.045, Standardized Root Mean Square Residual (SRMR) = 0.041, suggesting that: (1) participants with higher weight suppression showed higher degrees of the psychopathology of eating disorders, which was linked to higher levels of LOC eating; (2) self-criticism was a mediator between emotion regulation and depression/negative urgency; (3) self-criticism was a mediator between emotion regulation and disorder eating, which was significantly associated with LOC eating increased negative urgency.
Our model shows that LOC eating occurs for individuals with the psychopathology of higher eating disorders who experience depressive symptoms and act rashly under distress for their inability to cope adequately with negative feelings of self-devaluation. These findings point to the importance of negative self-evaluations and feelings of inadequacy or worthlessness to understand LOC eating among college students.
失控性进食与饮食失调心理病理学的核心方面、情绪与行为调节以及自我批评的不同维度直接相关。本研究调查了一个代表这些维度之间相互作用的模型，以了解非临床样本中的失控性进食情况。
在大学校园招募了341名参与者（平均年龄23.21岁，标准差 = 6.02），他们完成了一系列自我报告测量，评估失控性进食、体重抑制、饮食失调心理病理学、抑郁、消极紧迫性、情绪调节困难和自我批评。路径分析模型测试了一个关于失控性进食的假设模型，该模型有三条路径如下：（1）饮食失调心理病理学；（2）情绪与行为调节；（3）这些路径之间的相互作用。
我们发现数据的拟合优度指标如下：χ = 17.11，自由度 = 10，比较拟合指数（CFI）= 0.99，塔克 - 刘易斯指数（TLI）= 0.98，均方根误差近似值（RMSEA）= 0.045，标准化均方根残差（SRMR）= 0.041，这表明：（1）体重抑制较高的参与者饮食失调心理病理学程度较高，这与更高水平的失控性进食有关；（2）自我批评是情绪调节与抑郁/消极紧迫性之间的中介；（3）自我批评是情绪调节与饮食失调之间的中介，饮食失调与失控性进食显著相关，消极紧迫性增加。
我们的模型表明，对于患有较高饮食失调心理病理学的个体，由于他们在应对自我贬低的负面情绪时能力不足，会出现抑郁症状并在痛苦时冲动行事，从而发生失控性进食。这些发现指出了消极自我评价以及不足感或无价值感对于理解大学生失控性进食的重要性。
