Center for Weight Eating and Lifestyle Science (WELL Center), Drexel University, Philadelphia, PA, USA.
Department of Psychology, Drexel University, Philadelphia, PA, USA.
Eat Weight Disord. 2021 Oct;26(7):2413-2420. doi: 10.1007/s40519-020-01082-4. Epub 2021 Jan 3.
Ecological momentary assessment (EMA) studies preliminarily support the transactional model of emotion regulation in eating disorders, such that heightened stress appraisal (i.e., the cognitive evaluation of an event's demands) results in increased negative affect (NA) and subsequent binge eating (BE). However, the temporal relationships between these variables and the magnitude of stress appraisal that is clinically significant require clarification. The current study aimed to extend previous research by (1) examining the temporal relationship between stress appraisal, changes in NA, and BE using three timepoints, (2) exploring what magnitude of momentary stress appraisal results in clinically significant increases in NA and BE, and (3) characterizing what stressors are associated with clinically significant stress appraisal.
37 adult females completed an EMA protocol assessing momentary stressors, stress appraisal, NA, and BE over 2 week duration. Multilevel mediation models were used to test the study aims.
Momentary increases in stress appraisal significantly predicted binge eating through increases in NA. Stress appraisal ratings of 0.50 SD higher relative to one's average stress appraisal began to significantly predict the likelihood of BE through increases in NA, and the likelihood of BE occurrence increased with every 0.25 increments in momentary stress appraisal. Work/school stressors and interpersonal stressors were the most commonly endorsed stressors of clinically significant stress appraisal.
The current study supported the transactional model of emotion dysregulation in a binge eating sample and supports the use of momentary interventions at times of clinically significant stress appraisal to reduce BE risk.
Level II, controlled trial without randomization.
生态瞬时评估（EMA）研究初步支持情绪调节的交易模型在进食障碍中，例如，增加压力评估（即对事件需求的认知评估）导致负面情绪（NA）增加，随后暴食（BE）。然而，这些变量之间的时间关系以及临床显著的压力评估的幅度需要澄清。本研究旨在通过（1）使用三个时间点检查压力评估、NA 变化和 BE 之间的时间关系，（2）探讨什么样的瞬时压力评估幅度会导致 NA 和 BE 临床显著增加，以及（3）描述哪些压力源与临床显著的压力评估有关，来扩展先前的研究。
37 名成年女性在 2 周的时间内完成了一项 EMA 协议，评估了瞬时压力源、压力评估、NA 和 BE。使用多层次中介模型来检验研究目的。
瞬时压力评估的增加通过 NA 的增加显著预测了暴食。相对于一个人的平均压力评估，压力评估评分高出 0.50 个标准差，开始通过增加 NA 显著预测 BE 的可能性，并且随着瞬时压力评估的每 0.25 个增量，BE 的可能性增加。工作/学校压力源和人际压力源是临床显著压力评估中最常被认可的压力源。
本研究在暴食样本中支持情绪失调的交易模型，并支持在临床显著压力评估时使用瞬时干预来降低 BE 风险。
二级，无随机对照试验。
