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The near point of vision decreases with increasing age.
Hypnagogic Sensations
Vivid sensory phenomena that occur during the onset of sleep, including visual, auditory, or tactile hallucinations.
REM Rebound
The increase in REM sleep that occurs after a period of REM sleep deprivation.
Selective Attention
The mental process of concentrating on one particular piece of information while disregarding other data that can be sensed.
Circadian Rhythms
Biological processes that follow a roughly 24-hour cycle, regulating sleep, wakefulness, and numerous physiological functions in living organisms.
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