Question

Nightmares are to ________ as night terrors are to ________.
a. rem sleep; nrem-3 sleep
b. delta waves; alpha waves
c. nrem-3 sleep; nrem-1 sleep
d. nrem-1 sleep; rem sleep

Answer 1

Nightmares are to A. rem sleep as night terrors are to nrem-3 sleep.
Nightmares occur during the rem phase of sleeping, whereas night terrors during the nrem phase of sleep.