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    Infant wake after sleep onset serves as a marker for different trajectories in cognitive development

    Pisch, Manuela and Wiesemann, F. and Karmiloff-Smith, Annette (2018) Infant wake after sleep onset serves as a marker for different trajectories in cognitive development. Journal of Child Psychology and Psychiatry 60 (2), pp. 189-198. ISSN 0021-9630.

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    Background: Sleep variables have been linked to improved functioning of learning and memory throughout life, with most studies focusing on older children and adults. Since infancy is a time of outstanding plasticity, sleep variables could be particularly important for cognitive development in that age group. Methods: This is a longitudinal study collecting data from 40 infants at four different time points of 4, 6, 8 and 10 months. Sleep variables were assessed using actigraphy for a week, as well as a sleep questionnaire. Eye‐tracking was employed to examine developmental cognitive trajectories. Infants had to remember the location of a toy that had previously been linked to a sound and an eye‐tracker recorded whether they were searching the correct location upon hearing the sound. Results: Based on their trajectories between 4 and 10 months, infants were divided into two groups who shifted their response strategies at different time points. Those two groups also differed in other aspects of their looking patterns and scored increasingly differently in the Ages & Stages Questionnaire over time. Time spent awake in the night early in life was reduced in the group who changed their strategy earlier. Conclusions; While previous research examined the relation of infant sleep and cognitive functioning measured once, this paper provides first evidence that night wake time can serve as a marker for different cognitive trajectories.


    Item Type: Article
    Additional Information: Annette Karmiloff-Smith passed away December 19, 2016
    Keyword(s) / Subject(s): Sleep, working memory, infancy, longitudinal studies
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences
    Research Centres and Institutes: Brain and Cognitive Development, Centre for (CBCD)
    Depositing User: Administrator
    Date Deposited: 03 Apr 2019 09:01
    Last Modified: 02 Aug 2023 17:50


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