认知疲劳的神经生物学及其对基于努力的选择的影响
Grace Steward1, Vikram S Chib1,2,3
1Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD, USA.
bioRxiv : the preprint server for biology
|July 29, 2024
概括
认知疲劳是由精神劳动引起的,使人们避免为奖励而努力的选择. 大脑成像揭示了背侧前额叶皮质 (dlPFC) 的疲劳如何影响作出努力的决定.
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
- 决策科学 决策科学 决策科学
背景情况:
- 认知疲劳是一种常见的经历,是由于精神疲劳造成的.
- 关于认知疲劳如何影响基于努力的决策的神经生物学基础尚未得到充分理解.
研究的目的:
- 调查神经生物学机制,通过认知疲劳影响决策,以施加努力获得奖励.
- 检查与认知疲劳相关的大脑活动变化及其对基于努力的选择的影响.
主要方法:
- 功能磁共振成像 (fMRI) 用于测量大脑活动.
- 参与者在认知炼任务之前和之后做出了涉及努力获得奖励的选择.
主要成果:
- 认知疲劳的参与者更有可能拒绝需要更大的努力的更高奖励.
- 在背侧前额皮层 (dlPFC) 中的大脑活动与改变的努力值计算有关,由岛屿介导.
- 这种机制会影响人们在疲劳时做出努力的决定.
结论:
- 认知疲劳显著影响基于努力的决策.
- 在认知状态,大脑活动 (dlPFC和insula) 和倾向于施加努力之间存在机械联系.
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