Double trouble? The effects of sleep deprivation and chronotype on adolescent affect / Natasha DAGYS in Journal of Child Psychology and Psychiatry, 53-6 (June 2012)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 53-6 (June 2012) . - p.660–667 Titre : Double trouble? The effects of sleep deprivation and chronotype on adolescent affect Type de document : Texte imprimé et/ou numérique Auteurs : Natasha DAGYS, Auteur ; Eleanor L. MCGLINCHEY, Auteur ; Lisa S. TALBOT, Auteur ; Katherine A. KAPLAN, Auteur ; Ronald E. DAHL, Auteur ; Allison G. HARVEY, Auteur Année de publication : 2012 Article en page(s) : p.660–667 Langues : Anglais (eng) Mots-clés : Adolescence  circadian rhythm  emotion  sleep Index. décimale : PER Périodiques Résumé : Background:  Two understudied risk factors that have been linked to emotional difficulties in adolescence are chronotype and sleep deprivation. This study extended past research by using an experimental design to investigate the role of sleep deprivation and chronotype on emotion in adolescents. It was hypothesized that sleep deprivation and an evening chronotype would be associated with decreased positive affect (PA), increased negative affect (NA), and lower positivity ratios. Methods:  Forty-seven healthy adolescents (aged 10–15 for girls, 11–16 for boys) participated in a sleep deprivation and a rested condition. A subsample of 24 adolescents was selected on the basis of extreme morningness or eveningness scores (based on outer quartiles of scores on the Children’s Morningness-Eveningness Preferences Scale). PA and NA were measured using the Positive and Negative Affect Schedule for Children, and positivity ratios were calculated by dividing PA by NA. Results:  Participants reported less positive affect and lower positivity ratios when sleep deprived, relative to when rested. Evening chronotypes reported less positive affect and lower positivity ratios than morning chronotypes in both rested and sleep deprivation conditions. Conclusions:  These findings extend previous research by suggesting that adolescents are adversely impacted by sleep deprivation, and that an evening chronotype might serve as a useful marker of emotional vulnerability. Early intervention and prevention strategies can focus on improving sleep and on using chronotherapy principles to reduce eveningness. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2011.02502.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=157 [article] Double trouble? The effects of sleep deprivation and chronotype on adolescent affect [Texte imprimé et/ou numérique] / Natasha DAGYS, Auteur ; Eleanor L. MCGLINCHEY, Auteur ; Lisa S. TALBOT, Auteur ; Katherine A. KAPLAN, Auteur ; Ronald E. DAHL, Auteur ; Allison G. HARVEY, Auteur . - 2012 . - p.660–667. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 53-6 (June 2012) . - p.660–667 Mots-clés : Adolescence  circadian rhythm  emotion  sleep Index. décimale : PER Périodiques Résumé : Background:  Two understudied risk factors that have been linked to emotional difficulties in adolescence are chronotype and sleep deprivation. This study extended past research by using an experimental design to investigate the role of sleep deprivation and chronotype on emotion in adolescents. It was hypothesized that sleep deprivation and an evening chronotype would be associated with decreased positive affect (PA), increased negative affect (NA), and lower positivity ratios. Methods:  Forty-seven healthy adolescents (aged 10–15 for girls, 11–16 for boys) participated in a sleep deprivation and a rested condition. A subsample of 24 adolescents was selected on the basis of extreme morningness or eveningness scores (based on outer quartiles of scores on the Children’s Morningness-Eveningness Preferences Scale). PA and NA were measured using the Positive and Negative Affect Schedule for Children, and positivity ratios were calculated by dividing PA by NA. Results:  Participants reported less positive affect and lower positivity ratios when sleep deprived, relative to when rested. Evening chronotypes reported less positive affect and lower positivity ratios than morning chronotypes in both rested and sleep deprivation conditions. Conclusions:  These findings extend previous research by suggesting that adolescents are adversely impacted by sleep deprivation, and that an evening chronotype might serve as a useful marker of emotional vulnerability. Early intervention and prevention strategies can focus on improving sleep and on using chronotherapy principles to reduce eveningness. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2011.02502.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=157

Report from a randomized control trial: improved alignment between circadian biology and sleep-wake behavior as a mechanism of depression symptom improvement in evening-type adolescents with depressive symptoms / Adriane SOEHNER ; Emily DOLSEN ; Lulu DONG ; Allison G. HARVEY in Journal of Child Psychology and Psychiatry, 64-12 (December 2023)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 64-12 (December 2023) . - p.1652-1664 Titre : Report from a randomized control trial: improved alignment between circadian biology and sleep-wake behavior as a mechanism of depression symptom improvement in evening-type adolescents with depressive symptoms Type de document : Texte imprimé et/ou numérique Auteurs : Adriane SOEHNER, Auteur ; Emily DOLSEN, Auteur ; Lulu DONG, Auteur ; Allison G. HARVEY, Auteur Article en page(s) : p.1652-1664 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Study objectives An evening circadian preference is common among adolescents. It is characterized by a behavioral predilection for later sleep and wake timing and is associated with higher rates of Major Depressive Disorder (MDD). The present study aims to (a) test the effectiveness of a cognitive behavioral sleep intervention (Transdiagnostic Sleep and Circadian Intervention; TranS-C) in a sample of adolescents with an evening circadian preference and clinically significant depressive symptoms and (b) evaluate improved alignment between circadian biology and sleep-wake behavior as a potential mechanism in the relationship between sleep and depression symptom improvement. Methods Adolescents with an evening circadian preference and clinically significant depressive symptoms were randomized to receive TranS-C (n=24) or a psychoeducation condition (PE; n=18). Alignment between circadian biology and sleep-wake behavior was measured using objective biological measurement. Measures of sleep and circadian rhythm were taken at pre- and posttreatment, and depression symptoms were measured at pre- and posttreatment and 6- and 12-month follow-up. Results Mixed effects modeling revealed that compared with an active control condition, TranS-C resulted in a significant reduction in MDD severity at 12-month follow-up. A MacArthur mediation analysis conducted to explore alignment between circadian biology and sleep-wake behavior as a mediator of depression severity reduction through 12-month follow-up revealed a significant interaction between change in alignment between circadian biology and sleep-wake behavior and treatment arm, indicating that improved alignment between circadian biology and sleep-wake behavior at posttreatment was associated with improvements in depression outcomes at 12-month follow-up under the treatment condition. Conclusions These results provide novel evidence for improved alignment between circadian biology and sleep-wake behavior as a specific mechanism of depression improvement, provide key clues into the complex relationship between sleep and depression, and have significant clinical implications for adolescents with depression. En ligne : https://doi.org/10.1111/jcpp.13880 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=517 [article] Report from a randomized control trial: improved alignment between circadian biology and sleep-wake behavior as a mechanism of depression symptom improvement in evening-type adolescents with depressive symptoms [Texte imprimé et/ou numérique] / Adriane SOEHNER, Auteur ; Emily DOLSEN, Auteur ; Lulu DONG, Auteur ; Allison G. HARVEY, Auteur . - p.1652-1664. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 64-12 (December 2023) . - p.1652-1664 Index. décimale : PER Périodiques Résumé : Study objectives An evening circadian preference is common among adolescents. It is characterized by a behavioral predilection for later sleep and wake timing and is associated with higher rates of Major Depressive Disorder (MDD). The present study aims to (a) test the effectiveness of a cognitive behavioral sleep intervention (Transdiagnostic Sleep and Circadian Intervention; TranS-C) in a sample of adolescents with an evening circadian preference and clinically significant depressive symptoms and (b) evaluate improved alignment between circadian biology and sleep-wake behavior as a potential mechanism in the relationship between sleep and depression symptom improvement. Methods Adolescents with an evening circadian preference and clinically significant depressive symptoms were randomized to receive TranS-C (n=24) or a psychoeducation condition (PE; n=18). Alignment between circadian biology and sleep-wake behavior was measured using objective biological measurement. Measures of sleep and circadian rhythm were taken at pre- and posttreatment, and depression symptoms were measured at pre- and posttreatment and 6- and 12-month follow-up. Results Mixed effects modeling revealed that compared with an active control condition, TranS-C resulted in a significant reduction in MDD severity at 12-month follow-up. A MacArthur mediation analysis conducted to explore alignment between circadian biology and sleep-wake behavior as a mediator of depression severity reduction through 12-month follow-up revealed a significant interaction between change in alignment between circadian biology and sleep-wake behavior and treatment arm, indicating that improved alignment between circadian biology and sleep-wake behavior at posttreatment was associated with improvements in depression outcomes at 12-month follow-up under the treatment condition. Conclusions These results provide novel evidence for improved alignment between circadian biology and sleep-wake behavior as a specific mechanism of depression improvement, provide key clues into the complex relationship between sleep and depression, and have significant clinical implications for adolescents with depression. En ligne : https://doi.org/10.1111/jcpp.13880 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=517

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