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Sleep spindles and cognitive performance across adolescence: A meta-analytic review.

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Title: Sleep spindles and cognitive performance across adolescence: A meta-analytic review.
Authors: Reynolds, C.M.1 chelsea.reynolds@flinders.edu.au, Short, M.A.1, Gradisar, M.1
Source: Journal of Adolescence. Jul2018, Vol. 66, p55-70. 16p.
Subject Terms: *Cognitive ability, *Adolescent psychology, Sleep spindles, Neural development, Meta-analysis
Abstract: Higher sleep spindle activity generally relates to better cognitive performance in adults, while studies in children often show the opposite. As children become young adults, there is rapid brain maturation and development of higher-order cognitive functions, and therefore investigations within this age group may elucidate the relationship between spindles and cognition in this developmental period. Twelve studies published between 2009 and 2016 were identified. Meta-analyses revealed a positive relationship between spindles and cognition overall (r = 0.27), however effects varied depending on cognitive domain. Moderate positive relationships were seen for fluid IQ (r = 0.44), working memory/executive function (r = 0.40) and speed/accuracy (r = 0.33), while full IQ/verbal IQ was not significantly associated (r = -0.05). Meta-regressions indicated cognitive domain and spindle characteristic had a small influence over effect sizes, while age and gender did not have a significant influence. The relationship between spindles and cognition in adolescents is likely influenced by individual neural makeup and brain maturation. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Adolescence is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Education Research Complete
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DbLabel: Education Research Complete
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: <searchLink fieldCode="AR" term="%22Reynolds%2C+C%2EM%2E%22">Reynolds, C.M.</searchLink><relatesTo>1</relatesTo><i> chelsea.reynolds@flinders.edu.au</i><br /><searchLink fieldCode="AR" term="%22Short%2C+M%2EA%2E%22">Short, M.A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gradisar%2C+M%2E%22">Gradisar, M.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Adolescence%22">Journal of Adolescence</searchLink>. Jul2018, Vol. 66, p55-70. 16p.
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  Data: *<searchLink fieldCode="DE" term="%22Cognitive+ability%22">Cognitive ability</searchLink><br />*<searchLink fieldCode="DE" term="%22Adolescent+psychology%22">Adolescent psychology</searchLink><br /><searchLink fieldCode="DE" term="%22Sleep+spindles%22">Sleep spindles</searchLink><br /><searchLink fieldCode="DE" term="%22Neural+development%22">Neural development</searchLink><br /><searchLink fieldCode="DE" term="%22Meta-analysis%22">Meta-analysis</searchLink>
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  Data: Higher sleep spindle activity generally relates to better cognitive performance in adults, while studies in children often show the opposite. As children become young adults, there is rapid brain maturation and development of higher-order cognitive functions, and therefore investigations within this age group may elucidate the relationship between spindles and cognition in this developmental period. Twelve studies published between 2009 and 2016 were identified. Meta-analyses revealed a positive relationship between spindles and cognition overall (r = 0.27), however effects varied depending on cognitive domain. Moderate positive relationships were seen for fluid IQ (r = 0.44), working memory/executive function (r = 0.40) and speed/accuracy (r = 0.33), while full IQ/verbal IQ was not significantly associated (r = -0.05). Meta-regressions indicated cognitive domain and spindle characteristic had a small influence over effect sizes, while age and gender did not have a significant influence. The relationship between spindles and cognition in adolescents is likely influenced by individual neural makeup and brain maturation. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Adolescence is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.adolescence.2018.04.003
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      – Code: eng
        Text: English
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        PageCount: 16
        StartPage: 55
    Subjects:
      – SubjectFull: Cognitive ability
        Type: general
      – SubjectFull: Adolescent psychology
        Type: general
      – SubjectFull: Sleep spindles
        Type: general
      – SubjectFull: Neural development
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      – SubjectFull: Meta-analysis
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              Text: Jul2018
              Type: published
              Y: 2018
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              Value: 66
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