Conditioning task switching behavior
Conditioning task switching behavior
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DOI：
10.1016/j.cognition.2017.05.037
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发表时间：
2017-09-01
期刊：
影响因子：
3.4
通讯作者：
Braem, Senne
中科院分区：
文献类型：
--
作者：
Braem, Senne
大多数奖励研究集中在简单任务或刺激反应规则的强化上。然而，最近的理论（重新）强调，认知控制表征应该遵循与更基本的刺激和反应表征相同的强化学习原则。本研究以不同任务之间的转换行为为研究对象，考察了线索任务转换范式中奖励性任务交替或重复对后续自愿任务转换行为（即，当参与者可以选择执行哪个任务时）。实验结果表明，任务交替获得更多奖励的被试（相对于重复获得更多奖励的被试）表现出更多的任务转换行为。此外，这种增加的任务切换行为也带来了成本，参与者因为任务重复而获得更多奖励，表现出更好的任务专注力（即，更小的任务规则一致性效应）。这些结果表明，奖励可以加强更抽象的控制表征，超越低水平的刺激或反应表征。(C)2017爱思唯尔B.V.保留所有权利。
Most reward studies focus on the reinforcement of simple tasks or stimulus-response rules. However, recent theories (re)emphasized that cognitive control representations should adhere to the same reinforcement learning principles as do more basic stimulus and response representations. This study focused on the act of switching between different tasks, and investigated the effects of disproportionally rewarding task alternations or repetitions in a cued task switching paradigm on subsequent voluntary task switching behavior (i.e., when participants could choose which task to perform). The results show that subjects who were more rewarded for task alternations (relative to those more rewarded for repetitions) showed more task switching behavior. Moreover, this increased task switching behavior also came with a cost, with participants more rewarded for task repetitions showing a better task focus (i.e., smaller task rule congruency effects). These results demonstrate that reward can reinforce more abstract control representations, beyond low-level stimulus or response representations. (C) 2017 Elsevier B.V. All rights reserved.