在认知灵活性任务中,通过睡眠剥夺的持续时间调节神经补偿反应
Yue Zhang1, Haofei Miao1, Chao Wang1
1School of Psychology, Beijing Sport University, Beijing, China.
Journal of sleep research
|May 2, 2025
概括
在睡眠不足 (SD) 期间的神经补偿取决于持续时间. 虽然最初的表现会下降,但持续的清醒可能会完全激活补偿机制,正如大脑活动变化所显示的那样.
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
- 睡眠研究 睡眠研究
背景情况:
- 神经补偿机制旨在保持尽管睡眠不足 (SD) 的认知表现.
- 对于SD持续时间对这些补偿神经激活的影响尚不清楚.
- 已知认知任务复杂性可以调节SD后的神经活动.
研究的目的:
- 调查SD持续时间对神经补偿的影响.
- 检查不同SD持续时间 (24h和36h) 的行为和神经变化.
- 了解持续清醒在激活补偿神经机制中的作用.
主要方法:
- 33名健康的大学生接受了36小时的睡眠剥夺协议.
- 参与者在基线进行了切换任务,在24小时 (SD-24) 和36小时 (SD-36) 的SD之后.
- 静止状态EEG数据使用标准化低分辨率电磁断层扫描 (sLORETA) 来分析.
主要成果:
- 在SD-24时,任务性能下降,但在SD-36时恢复;在SD-24和SD-36时,认知灵活性下降.
- 脑电图显示,与基线相比,SD-24和SD-36的轨道前和上前环的激活减少.
- 与SD-24相比,在SD-36观察到上顶顶叶的激活增加,这表明持续时间取决于补偿.
结论:
- 神经补偿策略受到睡眠剥夺的持续时间的影响.
- 有效的神经补偿似乎需要持续的清醒才能充分参与.
- 这些发现突显了大脑适应长时间睡眠丧失的动态性质.
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