Discounting of food, sex, and money
Discounting of food, sex, and money
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DOI：
10.3758/s13423-013-0557-2
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发表时间：
2014-06-01
影响因子：
3.5
通讯作者：
Tiry, Andrew M.
中科院分区：
文献类型：
--
作者：
Holt, Daniel D.;Newquist, Matthew H.;Tiry, Andrew M.
折扣是理解涉及一系列延迟和概率结果(例如，金钱、食品、药品)的选择的有用框架，但相对较少的研究考察了人们如何对其他商品(例如，娱乐、性)进行折扣。使用一种新颖的贴现任务，其中一条线的长度代表结果的价值，并使用阶梯程序进行调整，我们复制了之前的发现，表明个体以双曲线类函数很好地描述的方式对延迟的和概率的结果进行贴现。此外，我们发现延迟结果的贴现率之间存在很强的正相关性，但不是概率结果。这表明，对延迟结果的贴现在不同的结果类型中可能是相对可预测的，但对概率结果的贴现可能更多地取决于特定的背景。延迟折扣的普遍性和概率折扣的潜在上下文相关性可以提供关于促成选择行为的因素的重要信息。
Discounting is a useful framework for understanding choice involving a range of delayed and probabilistic outcomes (e.g., money, food, drugs), but relatively few studies have examined how people discount other commodities (e.g., entertainment, sex). Using a novel discounting task, where the length of a line represented the value of an outcome and was adjusted using a staircase procedure, we replicated previous findings showing that individuals discount delayed and probabilistic outcomes in a manner well described by a hyperbola-like function. In addition, we found strong positive correlations between discounting rates of delayed, but not probabilistic, outcomes. This suggests that discounting of delayed outcomes may be relatively predictable across outcome types but that discounting of probabilistic outcomes may depend more on specific contexts. The generality of delay discounting and potential context dependence of probability discounting may provide important information regarding factors contributing to choice behavior.