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Differential associations between obesity and behavioral measures of impulsivity

机译：肥急性与行为措施之间的差分协会

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A growing literature indicates that impulsivity is a fundamental behavioral process that underlies obesity. However, impulsivity is a multidimensional construct, which comprises independent patterns of decision-making that could be uniquely associated with obesity. No research to date has clarified whether obesity is differentially associated with specific behavioral aspects of impulsivity. This study examined whether obesity was differentially associated with patterns of decision-making associated with impulsivity delay discounting, probability discounting, and response inhibition. Young adults (n = 296; 443% male) age 18-30 were recruited from the community with media advertisements. Participants completed a series of standard self-report measures of health outcomes and behavioral measures of delay discounting, probability discounting, and response inhibition individually in a laboratory. Associations between body mass index (BMI) and behavioral outcomes in the whole sample indicated that BMI was associated with age, delay discounting, and probability discounting, but not response inhibition. A logistic regression that included age, sex, and substance use as covariates found that delay discounting, but neither probability discounting nor response inhibition, was associated with obesity status. Sensitivity to delay, rather than response inhibition and sensitivity to uncertainty, may be the best correlate of obesity status in adults. These findings are relevant to our understanding of the fundamental behavioral processes associated with obesity. (C) 2015 Elsevier Ltd. All rights reserved.
机译：日益增长的文献表明，冲动是一个基本的行为过程，使肥胖是肥胖的。然而，冲动是一种多维结构，其包括可以与肥胖有唯一相关的决策的独立决策模式。迄今尚未研究令人抑制肥胖是否与冲动的特定行为方面有差异。本研究检测了肥胖是否与与冲动延迟折扣，概率折扣和反应抑制相关的决策模式差异。与媒体广告的社区招募了18-30岁的年轻成年人（N = 296; 443％的男性）。与会者在实验室完成了一系列标准的自我报告措施及行为延迟折扣，概率折扣和反应抑制的行为措施。体重指数（BMI）与整个样本中的行为结果之间的关联表明，BMI与年龄，延迟折扣和概率折扣相关，但未反应抑制。包括年龄，性别和物质用作协变者的逻辑回归，发现延迟折扣，但既不概率折扣也不是反应抑制，与肥胖状态有关。延迟的敏感性，而不是反应抑制和对不确定性的敏感性，可能是成人肥胖状态的最佳相关性。这些发现与我们对与肥胖有关的基本行为过程的理解有关。 （c）2015 Elsevier Ltd.保留所有权利。

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