最后，对呼吸道刺激物的咳嗽反射不会导致人们在睡眠期咳嗽，而会造成呼吸暂停。
Finally, the coughing reflex in reaction to irritants in the airway produces not a cough during sleep but a cessation of breathing.
在非快速眼动睡眠期，完全没有这种反射性的调整。
This reflexive adjustment is totally absent during NREM sleep.
许多研究发现，一种被称为条件反射的基本学习形式可以在睡眠中发生。
Many studies have found that a basic form of learning called conditioning can happen during sleep.
安德里隆和他的团队成员发现，在睡眠中学习也可以超越简单的条件反射。
Andrillon and his team members have found that learning in sleep can also go beyond simple conditioning.
由于睡眠时神经反射活动减弱，咽喉肌肉松弛，食物容易滑入气管，是非常危险的。
Because of the nervous reflex activity in sleep, the muscles of the throat relax, the food is easy to slide into the trachea, is very dangerous.
这些因素与睡眠建立了十分牢固的条件反射，稍有改变就会影响睡眠，所以有的人换一个地方就难以入睡。
These factors and sleep established very strong conditioned reflex, slightly change will affect sleep, so some people change a place it will be difficult to fall asleep.
方法：以翻正反射消失为睡眠开始的指标，至翻正反射恢复作为睡眠时间。
Methods: the absence of the righting reflex was considered as the sleep onset and the duration of the loss of the righting reflex was recorded as the sleeping time.
以翻正反射为指标研究褪黑素对小鼠睡眠及其昼夜节律的影响。
METHODS:To determine the sleep time and circadian sleep rhythm by observing the loss of the righting reflex method in mice.
以翻正反射为指标研究褪黑素对小鼠睡眠及其昼夜节律的影响。
METHODS:To determine the sleep time and circadian sleep rhythm by observing the loss of the righting reflex method in mice.
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