Department of Psychology, Utah State University, Logan, Utah.
Interdisciplinary Program in Neuroscience, Utah State University, Logan, Utah.
J Clin Psychol. 2019 Oct;75(10):1959-1974. doi: 10.1002/jclp.22831. Epub 2019 Jul 6.
Temporal discounting describes the devaluation of delayed rewards. Because temporal discounting is predictive of substance misuse, its clinical assessment could improve prevention (e.g., identifying at-risk youth) and treatment (e.g., predicting relapse). However, if discounting rates can be faked (e.g., to avoid treatment), their clinical utility may be limited. For the first time, we measured the influence of deception in a temporal discounting task.
We recruited 200 participants (44% female, 33) through Amazon Mechanical Turk. Participants completed a discounting assessment with instructions to (a) respond honestly, (b) fake good (i.e., simulate better versions of themselves), or (c) fake bad.
Generalized linear mixed effects analysis showed that in Experiment 1, nonclinical samples faked good ( 0.002) or bad ( 0.086) compared to the Honest group ( 0.008). In Experiment 2, cigarette smokers faked good ( 0.003) compared to the Honest group ( 0.025).
Temporal discounting transects the disciplines of psychology, biology, and behavioral economics. Before its promise as an endophenotype can be realized, assessments must be translated for clinical use. Opaquer temporal discounting tasks, or secondary measures of lying, may be required before temporal discounting can be confidently extended to clinical settings.
时间折扣描述了延迟奖励的贬值。由于时间折扣可以预测物质滥用，因此其临床评估可以改善预防（例如，识别有风险的青少年）和治疗（例如，预测复发）。然而，如果折扣率可以被伪造（例如，避免治疗），则其临床应用可能会受到限制。我们首次测量了在时间折扣任务中欺骗的影响。
我们通过亚马逊 Mechanical Turk 招募了 200 名参与者（44%为女性，33 岁）。参与者完成了折扣评估，指令为（a）如实回答，（b）假装好（即模拟更好的自己），或（c）假装差。
广义线性混合效应分析显示，在实验 1 中，非临床样本与诚实组相比，假装好（ 0.002）或假装差（ 0.086）（ 0.008）。在实验 2 中，与诚实组相比，吸烟者假装好（ 0.003）（ 0.025）。
时间折扣贯穿心理学、生物学和行为经济学等学科。在将其作为内表型的承诺得以实现之前，评估必须进行翻译以用于临床使用。在时间折扣能够被自信地扩展到临床环境之前，可能需要更不透明的时间折扣任务或说谎的次要措施。
