The future is now: comparing the effect of episodic future thinking on impulsivity in lean and obese individuals.
The future is now: comparing the effect of episodic future thinking on impulsivity in lean and obese individuals.
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现在的未来是：比较情节的未来思维对精益和肥胖个人冲动的影响。
DOI：
10.1016/j.appet.2013.07.010
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发表时间：
2013-12
期刊：
影响因子：
5.4
通讯作者：
Epstein, Leonard H.
中科院分区：
文献类型：
--
作者：
Daniel, Tinuke Oluyomi;Stanton, Christina M.;Epstein, Leonard H.
选择较小的即时奖励而不是较大的延迟奖励或延迟折扣，是冲动决策的一个重要方面。无法延迟满足与肥胖有关，也与其他适应不良行为有关，如药物滥用、酗酒、吸烟、病态赌博和危险的艾滋病行为。减少延迟折扣（DD）的一种方法可能是在跨期决策过程中以情景未来思维（EFT）的形式使用前瞻性意象。我们最近的研究表明，EFT可以减少肥胖个体的DD和随意能量摄入。然而，没有研究检查EFT效应的大小是否在瘦和超重/肥胖个体之间存在差异。我们进行了一项受试者内设计实验，以比较EFT与对照任务在减少瘦（N = 24）和超重/肥胖（N = 24）妇女之间DD的疗效。参与者参加了两次会议，他们在DD任务期间从事EFT或控制情景思维。我们还研究了个体差异，如特质时间洞察力，行为抑制或行为激活调节EFT对DD的影响。结果表明，EFT减少DD瘦和超重/肥胖的个人类似。EFT效应受到行为激活的调节。这表明EFT在减少肥胖个体的冲动性决策方面与瘦个体一样有效，并且可能有助于减少其他与冲动性肥胖相关的行为。
The choice of small immediate rewards as opposed to larger delayed rewards, or delay discounting, is an important dimension of impulsive decision making. The inability to delay gratification is related to obesity, as well as other maladaptive behaviors such as substance abuse, problem drinking, smoking, pathological gambling, and risky HIV behaviors. One way to reduce delay discounting (DD) may be to use prospective imagery in the form of episodic future thinking (EFT) during inter-temporal decision making. We have recently shown that EFT reduces DD and ad libitum energy intake in obese individuals. However, no studies have examined whether the magnitude of the EFT effect differs between lean and overweight/obese individuals. We conducted a within-subject design experiment to compare the efficacy of EFT versus a control task in reducing DD between lean (N = 24) and overweight/obese (N = 24) women. Participants attended two sessions in which they engaged in either EFT or control episodic thinking during a DD task. We also examined whether individual differences such as trait time perspective, behavioral inhibition or behavioral activation moderated the EFT effect on DD. Results showed EFT reduced DD similarly for lean and overweight/obese individuals. The EFT effect was moderated by behavioral activation. This suggests EFT is just as effective in reducing impulsive decision making in obese individuals as it is in lean individuals and may be useful in reducing other impulsive obesity related behaviors.
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