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.

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。

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Healthy people rotate between three states of vigilance: wakefulness, rapid eye-movement (REM) sleep and non-REM sleep.

健康人群会在三种警戒状态下转换：觉醒，快速动眼睡眠，非快速动眼睡眠。

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Then, in REM sleep (the rapid eye movement period when most dreaming occurs), it calls up bits of older memories that are somehow related, and melds them together.

然后，在快速眼动睡眠(多数梦产生时的快速眼球运动时期)中，它将唤起一些有关系的旧记忆，并将其糅合起来。

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Then REM sleep emerges, rapid eye movement sleep.

这时就进入REM快速眼动睡眠。

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The sleep test also was normal, except for a delayed onset of rapid-eye-movement sleep, with unknown medical significance.

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Leads attached next to the eyes can capture eye movement, useful for revealing when a patient is in rapid eye movement, or REM, sleep.

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Alcohol reduces how much time we spend in rapid eye movement (REM) sleep - the stage of sleep where dreams generally occur.

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