完全睡眠剥夺对工作记忆的影响:来自扩散模型的证据
Jiahui Li1,2, Yixuan Cao1,2, Simei Ou1,2
1Philosophy and Social Science Laboratory of Reading and Development in Children and Adolescents (South China Normal University), Ministry of Education, Guangzhou 510631, China.
Sleep
|January 5, 2024
概括
睡眠不足会影响工作记忆,影响信息处理,特别是减缓信息积累和增加可变性. 这会影响诸如注意力和决策等认知功能.
科学领域:
- 认知神经科学 认知神经科学
- 睡眠科学 睡眠科学
背景情况:
- 工作记忆对于日常运作至关重要,对睡眠丧失敏感.
- 了解睡眠不足如何影响认知过程至关重要.
研究的目的:
- 从信息处理的角度来研究总睡眠不足 (TSD) 对工作记忆的影响.
- 为了确定睡眠不足是否会影响工作记忆中的信息处理.
主要方法:
- 37名健康的成年人接受了正常睡眠和完全睡眠剥夺 (TSD) 在一个平衡的设计.
- 工作记忆和持续的注意力通过N-back和精神运动警觉任务 (PVT) 进行了评估.
- 用响应时间分布和漂移-扩散模型分析认知过程的变化.
主要成果:
- 总睡眠剥夺 (TSD) 增加了N-back任务中的精度加载效应,但没有增加响应时间加载效应.
- TSD减缓了信息积累,增加了它的可变性,并提高了决策值,特别是在1回任务中.
- 无论是PVT还是N-back任务,都显示TSD后反应缓慢受损,主要是由于信息积累变化增加.
结论:
- 响应时间分布和漂移-扩散模型为行为性能分析提供了新的见解.
- 睡眠不足显著影响了基础工作记忆的多个认知过程,对信息积累产生了显著影响.
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