School of Psychology, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
School of Psychology, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
Behav Processes. 2022 Aug;200:104696. doi: 10.1016/j.beproc.2022.104696. Epub 2022 Jul 5.
Delay discounting occurs when the present, subjective value of a reward decreases as a function of delay. Delay discounting is steeper when individuals must wait during the delay, and delay discounting rates for decisions about waiting are not strongly correlated with those for decisions about postponing without waiting. We examined whether changes in delay discounting in choices about waiting are linked to changes in subjective time perception. In Experiment 1, participants completed an experiential waiting task twice. We established that delay discounting was steeper later in the session. In Experiment 2 participants again completed the delay discounting task twice, and we also tracked time perception across the session using the temporal bisection task. Once again, participants demonstrated steeper discounting during the second discounting task, but time perception did not differ significantly. Additionally, discounting rates were not correlated with subjective time perception. Changes in delay discounting across the session might be understood in terms of context or reference effects.
当奖励的当前主观价值随着延迟而减少时，就会发生延迟折扣。当个体在延迟期间必须等待时，延迟折扣会更陡峭，等待决策的延迟折扣率与没有等待的推迟决策的延迟折扣率没有很强的相关性。我们研究了等待决策中的延迟折扣变化是否与主观时间感知的变化有关。在实验 1 中，参与者两次完成体验等待任务。我们确定在会议后期，延迟折扣更加陡峭。在实验 2 中，参与者再次两次完成延迟折扣任务，我们还使用时间二分任务在整个会议期间跟踪时间感知。再次，参与者在第二次折扣任务中表现出更陡峭的折扣，但时间感知没有显著差异。此外，折扣率与主观时间感知无关。整个会议期间延迟折扣的变化可以根据上下文或参考效应来理解。
