Sleep Stages & REM

In a sleep study, sleep researchers measure:

• brain waves
• left and right eye movements
• muscle tension
• all of these

We spend ____ of our lives sleeping.

• 1/4
• 1/3
• 1/2
• none of these

By the end of the night you spend half of your sleep time in this stage.

• NREM 1
• NREM 2
• NREM 3
• REM

If you were awakened during this sleep stage you might insist you were not asleep.

• NREM 1
• NREM 2
• NREM 3
• REM

You sleep most deeply during this stage, which is characterized by delta waves or slow waves.

• NREM 1
• NREM 2
• NREM 3
• REM

What happens just before you enter REM sleep? You:

• cycle back up through NREM 2 & NREM 1
• stay in NREM 3 for another 30 minutes
• go directly from NREM 3 to REM
• wake up, but you won't remember it the next day

Who coined the term REM?

• Sigmund Freud
• Wilhelm Wundt
• Elizabeth Loftus
• William Dement

During REM, your brainwave patterns are similar to:

• NREM 1
• NREM 2
• NREM 3
• When you're awake

Why is REM sleep considered paradoxical?

• Internally aroused
• Externally paralyzed
• Brainstem blocking messages from motor cortex
• all of these