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.
在快速眼动睡眠期发生的额外的呼吸变化，甚至比那些在非快速眼动期发生的变化还要显著。
Additional breathing changes occur during REM sleep that are even more dramatic than the changes that occur during NREM.
匹兹堡大学的艾瑞克·诺夫辛格博士说，大脑在快速眼动睡眠期和完全清醒时一样活跃，大多数最生动的梦都发生在这个时候。
The brain is as active during REM (rapid eye movement) sleep when most vivid dreams occur as it is when fully awake, says Dr. Eric Nofzinger at the University of Pittsburgh.
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