日常生活中围绕睡眠出现的较大认知波动。
Large cognitive fluctuations surrounding sleep in daily living.
作者信息
Huber Reto, Ghosh Arko
机构信息
Child Development Center, University Children's Hospital Zurich, Switzerland & Department of Child and Adolescent Psychiatry and Psychotherapy, Psychiatric Hospital University of Zurich, Switzerland.
Institute of Psychology, Cognitive Psychology Unit, Leiden University, Wassenaarseweg 52, Leiden 2333 AK, the Netherlands.
出版信息
iScience. 2021 Feb 7;24(3):102159. doi: 10.1016/j.isci.2021.102159. eCollection 2021 Mar 19.
Cognitive output and physical activity levels fluctuate surrounding sleep. The ubiquitous digitization of behavior via smartphones is a promising avenue for addressing how these fluctuations occur in daily living. Here, we logged smartphone touchscreen interactions to proxy cognitive fluctuations and contrasted these to physical activity patterns logged on wrist-worn actigraphy. We found that both cognitive and physical activities were dominated by diurnal (∼24 h) and infra-radian (∼7 days) rhythms. The proxy measures of cognitive performance-tapping speed, unlocking speed, and app locating speed-contained lower-powered diurnal rhythm than physical activity. The difference between cognitive and physical activity was vivid during bedtime as people continued to interact with their smartphones at physical rest. The cognitive performance measures in this period were worse than those in the hour before or after bedtime. We suggest that the rhythms underlying cognitive activity in the real world are distinct from those underlying physical activity, and this discord may be a hallmark of modern human behavior.
认知输出和身体活动水平在睡眠前后会发生波动。通过智能手机对行为进行普遍的数字化记录，是研究这些波动在日常生活中如何发生的一个很有前景的途径。在这里，我们记录了智能手机触摸屏交互情况来代表认知波动，并将其与手腕佩戴的活动记录仪记录的身体活动模式进行对比。我们发现，认知活动和身体活动都受昼夜（约24小时）和超日节律（约7天）的支配。认知表现的代理指标——点击速度、解锁速度和应用定位速度——所含的昼夜节律能量低于身体活动。在就寝时间，认知活动和身体活动的差异很明显，因为人们在身体休息时仍继续与智能手机互动。这一时期的认知表现指标比就寝前或就寝后的一小时更差。我们认为，现实世界中认知活动的节律与身体活动的节律不同，这种不一致可能是现代人类行为的一个标志。
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