ABSTRACT

Anhedonia is theorized as being relevant to binge eating spectrum disorders (BESDs) by palatable foods substituting the pleasure typically obtained from day-to-day activities. The current study examined whether anhedonia is associated with eating pathology at baseline and whether it predicts cognitive behavioral therapy (CBT) outcomes alone and when controlling for non-anhedonia depression symptoms. Ninety-three individuals from two randomized controlled trials completed the Eating Disorder Examination and Beck Depression Inventory-II at pre-, mid-, and post-treatment. Results showed that anhedonia was positively associated with global eating pathology at baseline, and larger pre- to mid-treatment anhedonia and non-anhedonia reductions predicted larger pre- to post-treatment global eating pathology reductions, though the anhedonia association was no longer significant when controlling for non-anhedonia depression. Anhedonia appears to be related to global eating pathology in CBT for BESDs, but not loss of control eating. Further research is needed to elucidate the relationship between anhedonia and BESDs.

摘要

理论上，快感缺失与暴食谱系障碍 (BESD) 有关，因为可口的食物取代了通常从日常活动中获得的快乐。目前的研究检查了快感缺乏是否与基线饮食病理学相关，以及它是否可以单独预测认知行为疗法（CBT）的结果以及在控制非快感缺乏抑郁症状时的结果。来自两项随机对照试验的 93 名受试者在治疗前、治疗中和治疗后完成了饮食失调检查和贝克抑郁量表 II。结果表明，在基线时，快感缺乏与整体饮食病理学呈正相关，治疗前至中期的快感缺乏和非快感缺乏减少幅度较大，预示着治疗前后整体饮食病理学的较大减少。尽管在控制非快感缺乏抑郁症时，快感缺乏关联不再显着。快感缺乏似乎与 BESD 认知行为治疗中的整体饮食病理学有关，但与饮食失控无关。需要进一步的研究来阐明快感缺失和 BESD 之间的关系。