背景:特征水平的情绪调节(ER)困难与进食障碍(ED)相关。然而,很少有研究研究人内ER的波动是否纵向预测日常生活中的ED行为或ER效应的机制。调查日常ER可以帮助我们更好地理解为什么人们在给定时间经历ED行为。我们检查了适应性的日常变化(例如,认知重估)和适应不良(例如,沉思)ER纵向预测核心ED行为(暴饮暴食,吹扫,节食)以及是否影响中介效应的变化。
方法:密歇根州立大学双胞胎注册中心15-30岁的女性参与者(N=688)报告了他们的适应性和适应性不良的ER使用,负面影响(NA),积极影响(PA),暴饮暴食,吹扫,连续49天节食。使用结构方程模型,我们研究了ER的人内波动是否预测了相同的日和次日ED行为,以及ER的变化是否影响介导的纵向ER效应.
结果:适应不良的内质网预测当天暴饮暴食和第二天暴饮暴食和清除的可能性增加。适应不良的ER与第二天暴饮暴食和清除之间的关联是由第二天NA增加介导的。相比之下,节食与PA的变化更密切相关。适应性ER不能预测任何ED行为的可能性降低。
结论:适应不良的内质网可能通过扩大NA纵向增加暴饮暴食和清除的风险。专注于减少适应不良的ER和随后的NA的干预措施可能有助于破坏暴饮暴食-清除周期。相反,结果增加了PA波动可能在维持限制性行为方面发挥独特作用的证据。
■关于情绪调节的日常变化如何影响饮食失调,人们知之甚少。我们发现适应不良的情绪调节(例如,沉思)与第二天暴饮暴食和清除的可能性更高有关,因为它预测第二天的负面影响会增加。相比之下,节食与积极情绪的波动更密切相关。针对日常情绪调节和情感过程可能有助于破坏饮食紊乱的周期。
BACKGROUND: Trait-level emotion regulation (ER) difficulties are associated with eating disorders (EDs) transdiagnostically. However, little research has examined whether within-person fluctuations in ER longitudinally predict ED behaviors in daily life or the mechanisms of ER effects. Investigating daily ER could help us better understand why people experience ED behaviors at a given time. We examined whether day-to-day changes in adaptive (e.g., cognitive reappraisal) and maladaptive (e.g., rumination) ER longitudinally predicted core ED behaviors (binge eating, purging, dieting) and whether changes in affect mediated effects.
METHODS: Female participants (N = 688) ages 15-30 from the Michigan State University Twin Registry reported their adaptive and maladaptive ER use, negative affect (NA), positive affect (PA), binge eating,
purging, and dieting on 49 consecutive days. Using structural equation modeling, we examined whether within-person fluctuations in ER predicted same- and next-day ED behaviors and whether changes in affect mediated longitudinal ER effects.
RESULTS: Greater maladaptive ER predicted increased likelihood of same-day binge eating and next-day binge eating and
purging. The association between maladaptive ER and next-day binge eating and
purging was mediated by increased next-day NA. In contrast, dieting was more closely related to changes in PA. Adaptive ER did not predict reduced likelihood of any ED behavior.
CONCLUSIONS: Maladaptive ER may longitudinally increase risk for binge eating and
purging by amplifying NA. Interventions focused on decreasing maladaptive ER and subsequent NA might help disrupt binge eating-
purging cycles. Conversely, results add to evidence that PA fluctuations may play a unique role in maintaining restrictive behaviors.
UNASSIGNED: Little is known about how daily changes in emotion regulation may impact disordered eating. We found that maladaptive emotion regulation (e.g., rumination) was associated with a higher likelihood of binge eating and purging on the next day because it predicted increased next-day negative affect. In contrast, dieting was more closely tied to fluctuations in positive affect. Targeting daily emotion regulation and affective processes may help disrupt cycles of disordered eating.