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NREM Sleep and Hypnagogic Sensations
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AP Psychology
AP.100 NREM Sleep and Hypnagogic Sensations
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A participant feels a brief falling sensation as the sleep record first moves from wakefulness to Stage 1. Later, the same record shows less time in Stages 1 through 3 during Cycle 4 than Cycle 1. Which inference is best?
A
The falling sensation proves NREM duration increased later in the night.
B
The falling sensation is unrelated to sleep onset, and the record cannot measure NREM.
C
The falling sensation is hypnagogic, and the record fits the decreasing NREM-duration pattern.
D
The falling sensation is REM, and Stage 1 should be excluded from NREM.
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