The effects of differential sleep stage deprivation on daytime sleep onset and REM period mentation.
Item
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Title
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The effects of differential sleep stage deprivation on daytime sleep onset and REM period mentation.
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Identifier
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AAI9417443
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identifier
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9417443
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Creator
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Carroll, Paul MacGregor.
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Contributor
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Adviser: Steven J. Ellman
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Date
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1994
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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, Psychobiology
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Abstract
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This dissertation reports on an experimental sleep mentation study which examined the effects of deprivation of Rapid Eye Movement sleep and Stage 2 sleep on both nocturnal REM mentation and Daytime Sleep Onset mentation. An attempt was made to replicate findings with the Absorption in Mentation Scales (Weinstein, Schwartz & Ellman, 1988; 1991). For the present study two sets of planned, orthogonal contrasts were devised based on prior findings. These contrasts were intended to address two issues; (1) Is there greater suspension of self reflective self-representation in mentation from nocturnal REM periods following REM deprivation, (an attempt to replicate prior findings with the AIMS); (2) Is there a greater suspension of self reflective self-representation in Daytime Sleep Onset mentation following REM deprivation. Several other scales were included in the study. Foulkes "dreamlike fantasy" scale (DF) and Molinari & Foulkes Sensory scale were included to compare with the prior studies using the AIMS. Additionally, two subscales of the Psycholinguistic Coding Manual (Antrobus et al., 1977) were included to address quantitative differences. These were the Total Content Count and the Self Participation subscales.;Sixteen subjects contributed 234 mentation reports in two days and three nights in the sleep laboratory. The reports were rated by three judges blind to awakening conditions. Intraclass correlation coefficients were calculated to establish interrater reliabilities. Thirteen scales were subjected to repeated measures analysis which provided the mean squares values for the planned contrasts and post hoc comparisons. The overwhelming outcomes of these comparisons were not significant leading to the conclusion that the Daytime Sleep Onset mentation does not show a greater suspension of reflective self-representation following REM deprivation. Furthermore, the attempts to replicate the findings of Weinstein, Schwartz & Ellman were unsuccessful. However, methodological difficulties prevent strong generalizations from being drawn about the validity of the present study as an adequate replication of these studies. Two sets of post hoc analyses were conducted. One post hoc analysis examined nocturnal reports alone and compared first and second nights of deprivation; a comparison was also made of recovery nights between REM and Stage 2 deprived subjects. No significant findings were obtained for these comparisons. A second set of post hoc comparisons were made in which Daytime Sleep Onset mentation was compared to Nocturnal REM period mentation with significant findings on several of the AIM scales and the Self Participation subscale of the Psycholinguistic Coding Manual. There was no significant differences found on Total Content Count for the post hoc comparison of Daytime Sleep Onset vs Nocturnal REM reports. (Abstract shortened by UMI.).
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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.
