Florida State University, Clinical Psychology, Tallahassee, FL, USA.
Behav Res Ther. 2010 Jul;48(7):607-13. doi: 10.1016/j.brat.2010.03.012. Epub 2010 Mar 20.
Affective lability has been linked to several maladaptive behaviors (Anestis et al., 2009; Coccaro, 1991). Methodology for measuring affective lability varies and includes retrospective self-report and ecological momentary assessment (EMA). In this study, we sought to test these methodologies by examining which better predicted binge eating episodes and general eating disorder symptoms in a sample (n = 131) of women diagnosed with bulimia nervosa (BN). We hypothesized that, while the two forms of measurement would be correlated with one another and predict binge eating episodes, EMA affective lability would be the stronger predictor. Results supported several hypotheses. Specifically, both EMA affective lability and retrospective self-report affective lability significantly predicted global eating disorder symptoms, even when controlling for depression, age, body mass index, and level of education, EMA affective lability exhibited a significantly stronger correlation with binge eating episodes than did retrospective self-report affective lability, and EMA affective lability predicted number of binge eating episodes on any given day controlling for the same list of covariates. Limitations include the use of a clinical sample that may limit the generalizability of our findings. Findings highlight the importance of affect in such behavior.
情绪不稳定性与多种适应不良行为有关（Anestis 等人，2009；Coccaro，1991）。衡量情绪不稳定性的方法多种多样，包括回顾性自我报告和生态瞬时评估（EMA）。在这项研究中，我们试图通过检查哪种方法更能预测患有神经性贪食症（BN）的女性样本（n=131）中的暴食发作和一般饮食障碍症状，来检验这些方法。我们假设，虽然这两种测量方法彼此相关并能预测暴食发作，但 EMA 情绪不稳定性的预测作用更强。结果支持了几个假设。具体来说，即使在控制抑郁、年龄、体重指数和教育程度的情况下，EMA 情绪不稳定性和回顾性自我报告情绪不稳定性都显著预测了整体饮食障碍症状，EMA 情绪不稳定性与暴食发作的相关性显著强于回顾性自我报告情绪不稳定性，并且 EMA 情绪不稳定性可以预测在任何一天的暴食发作次数，同时控制上述相同的协变量列表。局限性包括使用临床样本，这可能限制我们研究结果的普遍性。研究结果强调了情绪在这种行为中的重要性。
