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突出和奖励对冲动控制和行动选择的影响的个体差异
I Schutte1, D J L G Schutter1, J L Kenemans1
1Department of Experimental Psychology, Helmholtz Institute, Utrecht University, Heidelberglaan 1, 3584 CS, Utrecht, The Netherlands.
概括
增强环境线索可以改善每个人的冲动控制. 然而,对于任务诱导动机较低的人来说,外部奖励最有效,这表明为更好的自我调节提供了定制方法.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
背景情况:
- 冲动控制和决策对于目标实现和社会坚持至关重要.
- 环境敏感度和任务动机的个体差异可能会影响这些功能.
研究的目的:
- 调查是否增加环境提示的突出性通过停止信号任务来改善冲动控制.
- 检查外部奖励是否提高了Go/No go任务的表现,特别是在动机较低的个体中.
主要方法:
- 使用停止信号任务评估冲动控制.
- 通过预刺激EEGalpha功率测量环境易感性.
- 评估了使用theta/beta功率比的任务动机.
- 在Go/No go任务中实施了外部奖励操纵.
主要成果:
- 停止信号的高度突出性提高了停止性能.
- 基于EEGα功率的突出性操纵反应没有显著差异.
- 低/β功率比的个体在奖励激励下显示出更高的准确性.
结论:
- 增加环境暗示的突出性可能为冲动控制提供一般的好处.
- 外部奖励操纵对于任务诱导动机较低的人来说似乎更有效.
- 研究结果表明,提示驱动的自我调节和动机驱动的自我调节有不同的神经支.
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