The role of negative reinforcement eating expectancies in the relation between experiential avoidance and disinhibition.
The role of negative reinforcement eating expectancies in the relation between experiential avoidance and disinhibition.
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DOI：
10.1016/j.eatbeh.2016.01.003
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发表时间：
2016-04
期刊：
影响因子：
2.8
通讯作者：
Butryn ML
中科院分区：
文献类型：
--
作者：
Schaumberg K;Schumacher LM;Rosenbaum DL;Kase CA;Piers AD;Lowe MR;Forman EM;Butryn ML
与进食相关的去抑制(即对各种刺激的暴饮暴食的倾向)与体重增加和较差的长期减肥成功有关。从理论上讲，经验回避(即希望或试图避免不舒服的内在体验)可能会使个人倾向于产生负面的强化进食预期(即相信进食有助于缓解痛苦)，这反过来又会促进去抑制。这种关系与后天准备模型是一致的，该模型假定性格会影响学习和随后的行为。根据这一框架，目前的研究首次调查了负强化进食预期、经验回避(一般和特定食物)和不限制进食之间的关系。特别是，负强化进食期望在经验回避和不限制进食之间的关系中起到了中介作用。参与者(N=107)是接受行为减肥治疗的超重和肥胖个体，他们完成了一般和食物相关的经验回避、消极强化进食预期和去抑制的措施。经验回避和负强化进食期望与去抑制显著相关。此外，经验回避和去抑制之间的关系通过负强化进食期望来调节。目前的研究支持后天的去抑制准备模型，这样，经验回避和去抑制之间的关系可以通过吃东西将缓解痛苦的期望来解释。研究结果强调了进食预期在肥胖风险模型中的潜在作用，并确定负强化进食预期作为减少去抑制的潜在治疗目标。
Eating-related disinhibition (i.e. a tendency to overeat in response to various stimuli) is associated with weight gain and poorer long-term weight loss success. Theoretically, experiential avoidance (i.e., the desire or attempts to avoid uncomfortable internal experiences), may predispose individuals to developing negative reinforcement eating expectancies (i.e., the belief that eating will help to mitigate distress), which in turn promote disinhibition. Such relationships are consistent with an acquired preparedness model, which posits that dispositions influence learning and subsequent behavior. Drawing from this framework, the current study represents the first investigation of relations between negative reinforcement eating expectancies, experiential avoidance (both general and food-specific) and disinhibited eating. In particular, the mediating role of negative reinforcement eating expectancies in the relation between experiential avoidance and disinhibited eating was examined. Participants (N = 107) were overweight and obese individuals presenting for behavioral weight loss treatment who completed measures of general and food-related experiential avoidance, negative reinforcement eating expectancies, and disinhibition. Experiential avoidance and negative reinforcement eating expectancies significantly related to disinhibition. Furthermore, the relation between experiential avoidance and disinhibition was mediated by negative reinforcement eating expectancies. The current study supports an acquired preparedness model for disinhibition, such that the relation between experiential avoidance and disinhibition is accounted for by expectations that eating will alleviate distress. Findings highlight the potential role of eating expectancies in models accounting for obesity risk, and identify negative reinforcement eating expectancies as a potential treatment target for reducing disinhibition.