Research evidence suggests that
a. sleep is not necessary or helpful for memory formation.
b. REM sleep, but not NREM sleep, appears to be essential for memory formation.
c. NREM sleep, but not REM sleep, appears to be essential for memory formation.
d. Both REM and NREM appear to play important roles in memory formation.
Question 2
Sleep deprivation is associated with
a. few, if any, serious physical effects.
b. reduced release of growth hormone and impaired healing of injuries.
c. lower metabolic rates and need for nutrients.
d. impaired immune response in children, but not in adults.