Delay discounting in current and never-before cigarette smokers: Similarities and differences across commodity, sign, and magnitude
Delay discounting in current and never-before cigarette smokers: Similarities and differences across commodity, sign, and magnitude
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DOI：
10.1037/0021-843x.112.3.382
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发表时间：
2003-08-01
影响因子：
4.6
通讯作者：
Bickel, WK
中科院分区：
文献类型：
--
作者：
Baker, F;Johnson, MW;Bickel, WK
研究发现，尼古丁依赖者延迟贴现货币收益的比率高于匹配的对照组。然而，延迟折扣率也被发现在受试者内变量之间存在差异，例如结果的大小（例如，10美元或1，000美元），结果是否构成收益或损失，以及被评估的商品（例如，金钱或健康）。本研究全面调查了当前吸烟者和从未吸烟者之间以及这些受试者内变量之间的延迟折扣差异。两组都表现出了数量、符号和商品效应。然而，目前吸烟者对金钱结果的延迟折扣率在所有程度和两种迹象上都高于从未吸烟者。这一趋势也被发现为延迟的健康结果，但未能达到显着性。
Research has found that nicotine-dependent individuals delay discount monetary gains at a higher rate than matched controls. Delay discount rates, however, have also been found to vary across within-subject variables such as the magnitude of the outcome (e.g., $10 or $1,000), whether the outcome constitutes a gain or a loss, and the commodity being evaluated (e.g., money or health). The present study comprehensively investigated the differences in delay discounting between current and never-before cigarette smokers and across these within-subject variables. Both groups exhibited a magnitude, sign, and commodity effect. Current smokers' delay discount rates for monetary outcomes, however, were higher than never-before smokers across all magnitudes and both signs. This trend was also found for delayed health outcomes, but failed to reach significance.