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Cognitive performance in adolescents with Delayed Sleep-Wake Phase Disorder: Treatment effects and a comparison with good sleepers.

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Title: Cognitive performance in adolescents with Delayed Sleep-Wake Phase Disorder: Treatment effects and a comparison with good sleepers.
Authors: Richardson, C.1, Micic, G.1, Cain, N.1, Bartel, K.1, Maddock, B.1, Gradisar, M.1 michael.gradisar@flinders.edu.au
Source: Journal of Adolescence. Jun2018, Vol. 65, p72-84. 13p.
Subject Terms: *Short-term memory, *Evaluation research, *Exercise, *Fatigue (Physiology), *Research methodology, *Research, *Comparative studies, *Cognition, Cognition in adolescence, Sleep-wake cycle, Treatment effectiveness, Mild cognitive impairment, Phototherapy, Neuropsychological tests
Geographic Terms: Australia
Abstract: The present study aimed to investigate whether Australian adolescents with Delayed Sleep-Wake Phase Disorder have impaired cognitive performance and whether chronobiological treatment for Delayed Sleep-Wake Phase Disorder improves adolescents' sleep, daytime functioning and cognitive performance. Adolescents with Delayed Sleep-Wake Phase Disorder (mean = 15.68 ± 2.1 y, 62% f) reported significantly later sleep timing (d = 1.03-1.45), less total sleep time (d = 0.82) and greater daytime sleepiness (d = 2.66), fatigue (d = 0.63) and impairment (d = 2.41), compared to good sleeping adolescents (mean = 15.9 ± 2.4 y, 75% f). However, there were no significant between-group differences (all p > 0.05) in performance on the Operation Span (ηp2 = 0.043), Digit Span (forwards: ηp2 = 0.002, backwards: ηp2 = 0.003), Letter Number Sequencing (ηp2 < 0.001) (working memory) and Digit-Symbol Substitution Tasks (ηp2 = 0.010) (processing speed). Adolescents with Delayed Sleep-Wake Phase Disorder went on to receive 3 weeks of light therapy. At 3 months post-treatment, adolescents with Delayed Sleep-Wake Phase Disorder reported significantly advanced sleep timing (d = 0.56-0.65), greater total sleep time (d = 0.52) and improved daytime sleepiness (d = 1.33), fatigue (d = 0.84) and impairment (d = 0.78). Performance on the Operation Span (d = 0.46), Letter Number Sequencing (d = 0.45) and Digit-Symbol Substitution tasks (d = 0.57) also significantly improved. [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
An: 129374085
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Cognitive performance in adolescents with Delayed Sleep-Wake Phase Disorder: Treatment effects and a comparison with good sleepers.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Richardson%2C+C%2E%22&quot;&gt;Richardson, C.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Micic%2C+G%2E%22&quot;&gt;Micic, G.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Cain%2C+N%2E%22&quot;&gt;Cain, N.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Bartel%2C+K%2E%22&quot;&gt;Bartel, K.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Maddock%2C+B%2E%22&quot;&gt;Maddock, B.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Gradisar%2C+M%2E%22&quot;&gt;Gradisar, M.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;i&gt; michael.gradisar@flinders.edu.au&lt;/i&gt;
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  Data: The present study aimed to investigate whether Australian adolescents with Delayed Sleep-Wake Phase Disorder have impaired cognitive performance and whether chronobiological treatment for Delayed Sleep-Wake Phase Disorder improves adolescents&#39; sleep, daytime functioning and cognitive performance. Adolescents with Delayed Sleep-Wake Phase Disorder (mean = 15.68 &#177; 2.1 y, 62% f) reported significantly later sleep timing (d = 1.03-1.45), less total sleep time (d = 0.82) and greater daytime sleepiness (d = 2.66), fatigue (d = 0.63) and impairment (d = 2.41), compared to good sleeping adolescents (mean = 15.9 &#177; 2.4 y, 75% f). However, there were no significant between-group differences (all p &gt; 0.05) in performance on the Operation Span (ηp2 = 0.043), Digit Span (forwards: ηp2 = 0.002, backwards: ηp2 = 0.003), Letter Number Sequencing (ηp2 &lt; 0.001) (working memory) and Digit-Symbol Substitution Tasks (ηp2 = 0.010) (processing speed). Adolescents with Delayed Sleep-Wake Phase Disorder went on to receive 3 weeks of light therapy. At 3 months post-treatment, adolescents with Delayed Sleep-Wake Phase Disorder reported significantly advanced sleep timing (d = 0.56-0.65), greater total sleep time (d = 0.52) and improved daytime sleepiness (d = 1.33), fatigue (d = 0.84) and impairment (d = 0.78). Performance on the Operation Span (d = 0.46), Letter Number Sequencing (d = 0.45) and Digit-Symbol Substitution tasks (d = 0.57) also significantly improved. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;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&#39;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.&lt;/i&gt; (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=ehh&AN=129374085
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.adolescence.2018.03.002
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 13
        StartPage: 72
    Subjects:
      – SubjectFull: Short-term memory
        Type: general
      – SubjectFull: Evaluation research
        Type: general
      – SubjectFull: Exercise
        Type: general
      – SubjectFull: Fatigue (Physiology)
        Type: general
      – SubjectFull: Research methodology
        Type: general
      – SubjectFull: Research
        Type: general
      – SubjectFull: Comparative studies
        Type: general
      – SubjectFull: Cognition
        Type: general
      – SubjectFull: Cognition in adolescence
        Type: general
      – SubjectFull: Sleep-wake cycle
        Type: general
      – SubjectFull: Treatment effectiveness
        Type: general
      – SubjectFull: Mild cognitive impairment
        Type: general
      – SubjectFull: Phototherapy
        Type: general
      – SubjectFull: Neuropsychological tests
        Type: general
      – SubjectFull: Australia
        Type: general
    Titles:
      – TitleFull: Cognitive performance in adolescents with Delayed Sleep-Wake Phase Disorder: Treatment effects and a comparison with good sleepers.
        Type: main
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            NameFull: Richardson, C.
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            NameFull: Micic, G.
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            NameFull: Cain, N.
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            NameFull: Bartel, K.
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            NameFull: Maddock, B.
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            – D: 01
              M: 06
              Text: Jun2018
              Type: published
              Y: 2018
          Identifiers:
            – Type: issn-print
              Value: 01401971
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              Value: 65
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            – TitleFull: Journal of Adolescence
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