脊侧前额叶皮质在处理保留在工作记忆中的时间异常方面的作用
Pierandrea Mirino1,2, Alessandro Quaglieri3, Gabriele Scozia1
1Department of Psychology, Sapienza University of Rome, Rome, Italy.
Frontiers in behavioral neuroscience
|November 26, 2024
概括
背侧前额皮层 (DLPFC) 在时间处理任务期间被激活. 有趣的是,当检测到时间异常时,DLPFC会停用,这表明当时间不相关时,认知负载降低.
科学领域:
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
- 人类行为人类行为.
背景情况:
- 时间感知是一种基本的认知功能.
- 工作记忆 (WM) 对于处理时间信息至关重要.
- 背侧前额皮层 (DLPFC) 参与时间处理.
研究的目的:
- 通过使用fNIRS. 调查DLPFC在时间处理中的作用.
- 检查DLPFC如何响应时间序列的固定和可变持续时间.
主要方法:
- 功能近红外光谱学 (fNIRS) 用于测量DLPFC活动.
- 一个经过修改的"时正方形序列" (TSS) 任务评估了参与者匹配时间序列的能力.
- 刺激包括固定或可变持续时间的正方形序列.
主要成果:
- 当需要在线维护时间信息以进行比较时,观察到DLPFC激活.
- 在检测到时间异常时发生了DLPFC的显著停用.
- 这种禁用表明,当时间方面与任务目标无关时,认知资源需求减少.
结论:
- DLPFC在维护认知任务的时间信息方面发挥着至关重要的作用.
- 时间异常可能导致DLPFC失活,突出表明隐性时间干扰的作用.
- 这项研究建立了时间,工作记忆和执行功能之间的联系.
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