THE EFFECTS OF SELECTIVE SLEEP-STAGE RESTRICTION ON DAYTIME SLEEPINESS IN YOUNG ADULTS.
Item
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Title
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THE EFFECTS OF SELECTIVE SLEEP-STAGE RESTRICTION ON DAYTIME SLEEPINESS IN YOUNG ADULTS.
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Identifier
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AAI8611343
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identifier
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8611343
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Creator
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GLOVINSKY, PAUL BENJAMIN.
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Contributor
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Benjamin Glovinsky
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Date
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1986
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Language
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English
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Publisher
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City University of New York.
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Subject
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Psychology, Physiological
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Abstract
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When sleep in normals is chronically restricted, some REM and NREM Stage 2 sleep is lost whereas slow wave sleep is preserved. Restriction of nocturnal sleep also results in increased daytime sleep tendency. The present study was designed to determine whether this increased sleepiness is due specifically to the loss of either REM or Stage 2 sleep, or to a nonspecific loss of sleep.;Sixteen subjects were assigned to either a REM (7F, 1M, mean age = 26.9 years) or Stage 2 (5F, 3M, mean age = 24.5 years) awakening condition. After one week of stabilized bedtimes at home, subjects entered a sleep laboratory for a pre-treatment Multiple Sleep Latency Test (MSLT), two nights of either REM or Stage 2 awakenings and a posttreatment MSLT. REM awakenings were made each time there was polygraphic indication of REM sleep. Stage 2 awakenings were matched for frequency and time of night to the averages of the REM awakening group.;There was no significant difference in the mean reduction of sleep latency following treatment nights between the REM (-3.4 minutes) and Stage 2 (-4.4 minutes) awakening groups. A previously reported association between basal sleepiness and the number of REM-onset awakenings necessary to accomplish REM deprivation was confirmed (Night one r = -0.58, p < .07; Night two r = -0.85, p < .01).;These results suggest that sleepiness may result from the interruption of both REM and NREM processes. The observed association between basal sleepiness and REM recurrence during the deprivation procedure may reflect a pre-existing sleep (and REM) deprived state. An alternative hypothesis is that there are individual differences in the ability to deter the recurrence of REM sleep, or disengage the REM process once it has begun. These differences may in turn give rise to differing capacities to recover lost sleep.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
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Program
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Psychology
