Dixon Mark R, Marley Janice, Jacobs Eric A
Behavior Analysis and Therapy Program, Rehabilitation Institute, Southern Illinois University, Carbondale, IIlinois 62901, USA.
J Appl Behav Anal. 2003 Winter;36(4):449-58. doi: 10.1901/jaba.2003.36-449.
Discounting of delayed rewards by pathological gamblers was compared to discounting of delayed rewards by matched control nongambling participants. All participants completed a hypothetical choice task in which they made repeated choices between dollars 1,000 available after a delay and an equal or lesser amount of money available immediately. The delay to the large amount of money was varied from 1 week to 10 years across conditions. Indifference points between immediate money and delayed money were identified at each delay condition by varying the amount of immediate money across choice trials. For the majority of participants, indifference points decreased monotonically across delays. Overall, gamblers discounted the delayed rewards more steeply than did control participants.
将病态赌徒对延迟奖励的折扣与匹配的非赌博对照参与者对延迟奖励的折扣进行了比较。所有参与者都完成了一项假设选择任务，在该任务中，他们在延迟后可得的1000美元与立即可得的等额或较少金额之间反复做出选择。在不同条件下，大额金钱的延迟时间从1周变化到10年。通过在选择试验中改变立即可得金钱的数量，在每个延迟条件下确定立即可得金钱与延迟可得金钱之间的无差异点。对于大多数参与者来说，无差异点随着延迟时间的增加而单调下降。总体而言，赌徒对延迟奖励的折扣比对照参与者更陡峭。
