Manasse Stephanie M, Espel Hallie M, Forman Evan M, Ruocco Anthony C, Juarascio Adrienne S, Butryn Meghan L, Zhang Fengqing, Lowe Michael R
Department of Psychology, Drexel University, Stratton Hall, 3141 Chestnut Street, Suite 119, Philadelphia, PA 19104, USA.
Department of Psychology, Drexel University, Stratton Hall, 3141 Chestnut Street, Suite 119, Philadelphia, PA 19104, USA.
Appetite. 2015 Jun;89:16-21. doi: 10.1016/j.appet.2015.01.013. Epub 2015 Jan 19.
Poor executive function (EF; pre-frontal cognitive control processes governing goal-directed behavior) and elevated hedonic hunger (i.e., preoccupation with palatable foods in the absence of physiological hunger) are theoretical risk and maintenance factors for binge eating (BE) distinct from general obesity. Recent theoretical models posit that dysregulated behavior such as BE may result from a combination of elevated appetitive drive (e.g., hedonic hunger) and decreased EF (e.g., inhibitory control and delayed discounting). The present study sought to test this model in distinguishing BE from general obesity by examining the independent and interactive associations of EF and hedonic hunger with BE group status (i.e., odds of categorization in BE group versus non-BE group). Treatment-seeking overweight and obese women with BE (n = 31) and without BE (OW group; n = 43) were assessed on measures of hedonic hunger and EF (inhibitory control and delay discounting). Elevated hedonic hunger increased the likelihood of categorization in the BE group, regardless of EF. When hedonic hunger was low, poor EF increased the likelihood of categorization in the BE group. Results indicate that the interplay of increased appetitive drives and decreased cognitive function may distinguish BE from overweight/obesity. Future longitudinal investigations of the combinatory effect of hedonic hunger and EF in increasing risk for developing BE are warranted, and may inform future treatment development to target these factors.
执行功能障碍（EF；即前额叶认知控制过程，负责调控目标导向行为）和享乐性饥饿增强（即，在无生理饥饿时对美味食物的过度关注）是理论上区别于一般肥胖的暴饮暴食（BE）的风险因素及维持因素。近期的理论模型假定，诸如暴饮暴食这类行为失调可能是由食欲驱动增强（如享乐性饥饿）和执行功能障碍（如抑制控制和延迟折扣）共同导致的。本研究旨在通过检验执行功能和享乐性饥饿与暴饮暴食组状态（即，被归类为暴饮暴食组而非非暴饮暴食组的几率）的独立及交互关联，来验证该模型能否区分暴饮暴食和一般肥胖。对寻求治疗的患有暴饮暴食的超重及肥胖女性（n = 31）和未患暴饮暴食的女性（超重/肥胖组；n = 43）进行享乐性饥饿和执行功能（抑制控制和延迟折扣）测量。无论执行功能如何，享乐性饥饿增强都会增加被归类为暴饮暴食组的可能性。当享乐性饥饿程度较低时，执行功能障碍会增加被归类为暴饮暴食组的可能性。结果表明，食欲驱动增强与认知功能下降之间的相互作用可能是区分暴饮暴食与超重/肥胖的关键。未来有必要对享乐性饥饿和执行功能在增加患暴饮暴食风险方面的联合效应进行纵向研究，这可能为针对这些因素制定未来的治疗方案提供参考。
