Stages and Function of Sleep

In which sleep stage does our eyes move around quickly?

• Non-Rapid Eye Movement (NREM)

• Rapid Eye Movement (REM)

REM sleep has 4 stages. True or False

• True

• False

Dreaming occurs during...

• NREM Stage 1

• NREM Stage 2

• NREM Stage 3

• NREM Stage 4

• REM sleep

Which researchers discovered that people tend to report dreaming when woken from REM sleep?

• Dement & Kleitman (1957)

• Murdock (1962)

• Repacholi & Gopnik (1997)

• Gunderson et al. (2013)

Which two are true about Stage 1 (sleep onset)?

• Your brain waves are slower (mostly theta waves)

• You can easily be awoken

• Mostly alpha waves (idling) and theta waves

• Body temperature starts to drop

Which two are true about the brain waves Stage 2 (late night stage)?

• Your brain waves are slower (mostly theta waves)

• Occasional beta waves

• Mostly alpha waves (idling) and theta waves

• Occasional sleep spindles (bursts of activity)

Which two things happens to your body in Stage 2 (late night stage)

• Muscles tense and contract

• Heart rate slows

• Body temperature drops

• Digestion increases

Stage 3 and 4 are sometimes merged when explaining sleep. (True or False)

• True

• False

Which two are true about Stage 3?

• Slow delta waves and some faster waves

• It is the stage between light and deep sleep

• Some sleep spindles (bursts of activity)

Which one is NOT true about Stage 4 (deep sleep)?

• Hard to wake and feel disoriented if woken

• No eye movements

• Mostly slow delta waves

• Heart rate and breathing increase