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Neuroscience

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Characteristics of REM Sleep

NEURO-TRG02K

There are three functional states of the brain. During a normal day, the brain will experience one state of awake and two states of sleep. The two states of sleep are REM (rapid eye movement) sleep and non-REM (non-rapid eye movement) sleep.

From the choices below, choose ALL that are characteristics of REM sleep.

A

Loss of muscle tone.

B

Alternating delta and beta activities.

C

Occasional twitching.

D

Rapid eye movement.