We present a biologically-based mathematical model that accounts for several features of the human sleep/wake cycle. These features include the timing of sleep and wakefulness under normal, sleep-deprived and nap conditions, as well as ultradian rhythms. Additionally, if the input from the ...
We examine the effects of “spring forward” DST advances, which disrupt the human sleep cycle and economic activities, on investors’ processing of earnings news. We find a delayed price response to earnings news released during the first week following a DST advance. We also find that this ...
原因很简单,判断是否熬夜的标准并不是睡眠总时长,而是我们的入睡的时间点。 The human sleep-wake cycle is generated by a circadian process, originating from the suprachiasmatic nuclei, in interaction with a separate oscillatory process: the sleep homeostat. 《睡眠革命》一书中指出,昼夜节律是生命体24小...
Two new techniques for the analysis of the human sleep-wake cycle are presented and illustrated. The first is based on a wrist-worn solid-state activity monitor which can record movement activity for prolonged time periods. The method has been applied to document phase-shifts of the rest-activi...
The suprachiasmatic nucleus of the human brain in relation to sex, age and senile dementia. The suprachiasmatic nucleus (SCN) is considered to be the endogenous clock of the brain, essential for the ovulation cycle and the temporal organization of... DF Swaab,E Fliers,TS Partiman - 《Brain ...
The normal human daily cycle of activity is of some 7-8 hours’ sleep alternating with some 16-17 hours’ wakefulness. Broadly speaking, the sleep hours normally ( ) with the hours of darkness. 问题1选项 A. conform B. coincide C. collide D. comply 相关知识点: 试题...
We all know that the normal human daily cycle of activity is of some 748 hours" sleep alternating with some 16,417 hours" wakefulness and that, broadly speaking, the sleep normally coincides with the hours of darkness. Our present concern is with how easily and to what extent this cycle ...
Your brain cycles through the sleep cycle 4 to 6 times each night. Each cycle is comprised of the four sleep stages: non-REM 1, non-REM 2, non-REM 3, and finally, REM. (1) Out of all sleep stages, we spend most of our time (45 percent) in non-REM 2. (1) ...
Why is human biology important? Why is active transport important? Explain why hydration is so important. Why is environmental stewardship important? Why is taxonomy important? Why is limnology important? Why are minerals important to the rock cycle?
Brain imaging studies of appetite in the context of obesity and the menstrual cycle. BACKGROUND Obesity affects many aspects of health, including reproduction. Despite unrelenting warnings about the health consequences of obesity, its preva... DeanA.VanVugt - 《Human Reproduction Update》 被引量:...