Bedtime social media use, sleep, and affective wellbeing in young adults: an experience sampling study / Ahuti DAS-FRIEBEL in Journal of Child Psychology and Psychiatry, 61-10 (October 2020)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 61-10 (October 2020) . - p.1138-1149 Titre : Bedtime social media use, sleep, and affective wellbeing in young adults: an experience sampling study Type de document : texte imprimé Auteurs : Ahuti DAS-FRIEBEL, Auteur ; Anita LENNEIS, Auteur ; Anu REALO, Auteur ; Adam SANBORN, Auteur ; Nicole K.Y. TANG, Auteur ; Dieter WOLKE, Auteur Article en page(s) : p.1138-1149 Langues : Anglais (eng) Mots-clés : Bedtime social media use  actigraphy  depressive symptoms  ecological momentary assessment  experience sampling  negative affect  positive affect  sleep duration  sleep satisfaction Index. décimale : PER Périodiques Résumé : BACKGROUND: Findings from primarily cross-sectional studies have linked more extensive social media use to poorer sleep and affective wellbeing among adolescents and young adults. This study examined bedtime social media use, sleep, and affective wellbeing, using an experience sampling methodology with the aim of establishing a day-to-day temporal link between the variables. The study hypothesized a positive association between increased bedtime social media use and lower affective wellbeing the following day, mediated by poorer sleep. METHODS: Using a smartphone application, 101 undergraduate students (M(age)  = 19.70 years, SD = 1.09 years), completed daily questionnaires assessing the previous night's bedtime social media use and sleep duration and satisfaction (one measurement per day, questionnaire sent at 08:00), and momentary affective wellbeing (five measurements per day, at randomly varying times between 08:00 and 22:00 on weekdays and 10:00 and 22:00 on weekends), for 14 consecutive days. Objective assessments of total sleep time and sleep efficiency were obtained via wrist-worn actigraphs. By means of separate multilevel models, it was tested whether increased bedtime social media use predicted poorer sleep the same night, whether poorer sleep was predictive of positive and negative affect the following day, and whether sleep mediated the relationship between social media use and affective wellbeing. RESULTS: Increased bedtime social media use was not associated with poorer sleep the same night. Apart from subjective sleep satisfaction, no other sleep variable (i.e., subjective sleep duration, objective total sleep time and objective sleep efficiency) predicted positive or negative affect the following day. CONCLUSIONS: This study found that bedtime social media use is not detrimental to the sleep and affective wellbeing of healthy young adults. However, it is possible that bedtime social media use may be harmful to the sleep of vulnerable individuals. En ligne : http://dx.doi.org/10.1111/jcpp.13326 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=432 [article] Bedtime social media use, sleep, and affective wellbeing in young adults: an experience sampling study [texte imprimé] / Ahuti DAS-FRIEBEL, Auteur ; Anita LENNEIS, Auteur ; Anu REALO, Auteur ; Adam SANBORN, Auteur ; Nicole K.Y. TANG, Auteur ; Dieter WOLKE, Auteur . - p.1138-1149. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 61-10 (October 2020) . - p.1138-1149 Mots-clés : Bedtime social media use  actigraphy  depressive symptoms  ecological momentary assessment  experience sampling  negative affect  positive affect  sleep duration  sleep satisfaction Index. décimale : PER Périodiques Résumé : BACKGROUND: Findings from primarily cross-sectional studies have linked more extensive social media use to poorer sleep and affective wellbeing among adolescents and young adults. This study examined bedtime social media use, sleep, and affective wellbeing, using an experience sampling methodology with the aim of establishing a day-to-day temporal link between the variables. The study hypothesized a positive association between increased bedtime social media use and lower affective wellbeing the following day, mediated by poorer sleep. METHODS: Using a smartphone application, 101 undergraduate students (M(age)  = 19.70 years, SD = 1.09 years), completed daily questionnaires assessing the previous night's bedtime social media use and sleep duration and satisfaction (one measurement per day, questionnaire sent at 08:00), and momentary affective wellbeing (five measurements per day, at randomly varying times between 08:00 and 22:00 on weekdays and 10:00 and 22:00 on weekends), for 14 consecutive days. Objective assessments of total sleep time and sleep efficiency were obtained via wrist-worn actigraphs. By means of separate multilevel models, it was tested whether increased bedtime social media use predicted poorer sleep the same night, whether poorer sleep was predictive of positive and negative affect the following day, and whether sleep mediated the relationship between social media use and affective wellbeing. RESULTS: Increased bedtime social media use was not associated with poorer sleep the same night. Apart from subjective sleep satisfaction, no other sleep variable (i.e., subjective sleep duration, objective total sleep time and objective sleep efficiency) predicted positive or negative affect the following day. CONCLUSIONS: This study found that bedtime social media use is not detrimental to the sleep and affective wellbeing of healthy young adults. However, it is possible that bedtime social media use may be harmful to the sleep of vulnerable individuals. En ligne : http://dx.doi.org/10.1111/jcpp.13326 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=432

The longitudinal role of sleep on self-harm during adolescence: A birth cohort study / Michaela PAWLEY in Journal of Child Psychology and Psychiatry, 67-1 (January 2026)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 67-1 (January 2026) . - p.67-78 Titre : The longitudinal role of sleep on self-harm during adolescence: A birth cohort study Type de document : texte imprimé Auteurs : Michaela PAWLEY, Auteur ; Isabel MORALES-MUÑOZ, Auteur ; Andrew P. BAGSHAW, Auteur ; Nicole K.Y. TANG, Auteur Article en page(s) : p.67-78 Langues : Anglais (eng) Mots-clés : Sleep  adolescence  longitudinal studies  self-harm Index. décimale : PER Périodiques Résumé : Background Sleep problems and self-harm during adolescence are both highly common and major public health concerns, yet the nature of their relationship remains poorly understood. This study examined the cross-sectional and long-term effects of several sleep phenotypes on self-harm and whether decision-making moderated this relationship. Methods Data was utilised from the Millennium Cohort Study (n?=?10,477, Female?=?5,314 [50.72%]) when individuals were approximately 9?months, 14?years and 17?years of age. Sleep variables available were measured at 14?years and included sleep duration on weekdays and weekends, social jetlag, sleep onset latency and night awakenings. Self-harm was measured at 14 and 17?years. The Cambridge Gambling Task assessed rational decision-making at 14?years. Results Cross-sectionally, shorter sleep duration on school days (AOR?=?0.875; 95% CI?=?0.820, 0.933; p? En ligne : https://doi.org/10.1111/jcpp.70018 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=577 [article] The longitudinal role of sleep on self-harm during adolescence: A birth cohort study [texte imprimé] / Michaela PAWLEY, Auteur ; Isabel MORALES-MUÑOZ, Auteur ; Andrew P. BAGSHAW, Auteur ; Nicole K.Y. TANG, Auteur . - p.67-78. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 67-1 (January 2026) . - p.67-78 Mots-clés : Sleep  adolescence  longitudinal studies  self-harm Index. décimale : PER Périodiques Résumé : Background Sleep problems and self-harm during adolescence are both highly common and major public health concerns, yet the nature of their relationship remains poorly understood. This study examined the cross-sectional and long-term effects of several sleep phenotypes on self-harm and whether decision-making moderated this relationship. Methods Data was utilised from the Millennium Cohort Study (n?=?10,477, Female?=?5,314 [50.72%]) when individuals were approximately 9?months, 14?years and 17?years of age. Sleep variables available were measured at 14?years and included sleep duration on weekdays and weekends, social jetlag, sleep onset latency and night awakenings. Self-harm was measured at 14 and 17?years. The Cambridge Gambling Task assessed rational decision-making at 14?years. Results Cross-sectionally, shorter sleep duration on school days (AOR?=?0.875; 95% CI?=?0.820, 0.933; p? En ligne : https://doi.org/10.1111/jcpp.70018 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=577

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