APFIVE REM Sleep and Dream Recall
A sleep study participant is awakened during the final hour of an 8-hour sleep period and reports vivid, story-like dreams. Compared to being awakened during the first hour, this increased dream recall is most likely due to:
A
Reduced slow-wave sleep in the final hours
B
Increased REM sleep duration in later sleep cycles
C
Heightened sensory awareness before waking
D
Decreased melatonin levels near morning
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