EFFECT OF THE INCUBATOR ENVIRONMENT ON SLEEP ORGANIZATION IN PREMATURE INFANTS.
Item
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Title
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EFFECT OF THE INCUBATOR ENVIRONMENT ON SLEEP ORGANIZATION IN PREMATURE INFANTS.
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Identifier
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AAI8708315
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identifier
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8708315
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Creator
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PLATT, MEREDITH M.
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Contributor
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Gerald Turkewitz
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Date
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1987
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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, Developmental
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Abstract
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Many individuals who were prematurely born show psychological and physiological problems that are difficult to relate to earlier pre- or post-natal insults. One possible source of insult is the time the infant spends in the intensive care unit. The purpose of this study was to explore the influence of the environment of the intensive care unit on sleep organization in premature infants by examining responses to change in the incubator environment. A full sleep period was recorded under two conditions in 17 healthy premature infants at the time of weaning from incubator to crib: On, in which the motor of the incubator was on, and Off, in which the motor was turned off, portholes opened and infants loosely swaddled. That portion of the sleep record containing the EEG pattern known as trace alternant was identified as evidence of a state of arousal similar to quiet sleep in the full-term infant. Only those epochs of the record were further analyzed. Components of sleep state and correlations of these components were assessed using Pearson product moment correlations and MANOVA. Degree of organization of quiet sleep state was assessed in each condition in terms of the correlations.;The results show that the first phase of the usual transition from incubator to crib has an impact on sleep organization. Respiration rate and variability were significantly lower in the Off condition than in the On condition with nearly all of the infants responding in a similar manner. The effect of the change in the incubator environment on other components of sleep were more dependent upon the infants' prior developmental and environmental history. For example, correlation between heart rate variability and respiration variability was positively related to estimated gestational age at birth and negatively related to the number of days in the incubator. Results show that the infant's environmental and developmental history influence the rate of occurrence of the individual sleep components, the organization of these components, and their response to environmental change.
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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
