短期记忆能力预测了人们愿意为获得奖励而花费认知精力
Brandon J Forys1, Catharine A Winstanley2,3, Alan Kingstone2
1Department of Psychology, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada brandon.forys@psych.ubc.ca.
eNeuro
|June 12, 2024
概括
对奖励的认知努力主要是由个人的短期记忆能力预测的,而不是抑郁或压力. 更高的内存容量与选择更具挑战性,更有价值的任务相关.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 行为经济学是一种行为经济学.
背景情况:
- 决策包括平衡任务的努力与潜在的回报.
- 以前的动物研究将认知努力与奖励价值,抑郁和压力联系起来.
- 像短期记忆能力这样的因素对于人类的认知努力至关重要,但在动物中很难研究.
研究的目的:
- 为了研究短期记忆能力,抑郁症,慢性压力和奖励预期如何影响认知努力部署奖励.
- 为了确定这些因素是否预测了愿意从事认知要求高的任务以获得更大的回报.
主要方法:
- 在线视觉短期记忆任务被用于本科生参与者.
- 根据任务选择,参与者被分为高和低努力小组.
- 一个货币激励任务评估了奖励预期,随后是记忆任务试验,其中有不同的努力/奖励选项.
主要成果:
- 只有优越的短期记忆能力显著预测了更高比例的高精力选择.
- 漂移扩散建模表明,在高压力组中,对高压力试验的偏差更大.
- 抑郁症,压力和奖励预期等因素并没有预测努力的选择.
结论:
- 认知努力能力的个体差异,特别是短期记忆能力,是认知努力部署的关键决定因素.
- 这些发现强调了固有的认知能力在基于努力的决策中对压力或抑郁症等外部因素的作用.
- 未来的研究应该在更复杂的场景中探索认知能力和基于努力的选择之间的相互作用.
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