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Auteur John FLOURNOY
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Documents disponibles écrits par cet auteur (2)
Faire une suggestion Affiner la rechercheConcurrent and prospective associations between fitbit wearable-derived RDoC arousal and regulatory constructs and adolescent internalizing symptoms / Benjamin W. NELSON in Journal of Child Psychology and Psychiatry, 63-3 (March 2022)
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[article]
Titre : Concurrent and prospective associations between fitbit wearable-derived RDoC arousal and regulatory constructs and adolescent internalizing symptoms Type de document : texte imprimé Auteurs : Benjamin W. NELSON, Auteur ; Jessica E. FLANNERY, Auteur ; John FLOURNOY, Auteur ; Natasha DUELL, Auteur ; Mitchell J. PRINSTEIN, Auteur ; Eva TELZER, Auteur Article en page(s) : p.282-295 Langues : Anglais (eng) Mots-clés : Adolescence fitbit heart rate internalizing symptoms sleep steps wearables Index. décimale : PER Périodiques Résumé : BACKGROUND: Adolescence is characterized by alterations in biobehavioral functioning, during which individuals are at heightened risk for onset of psychopathology, particularly internalizing disorders. Researchers have proposed using digital technologies to index daily biobehavioral functioning, yet there is a dearth of research examining how wearable metrics are associated with mental health. METHODS: We preregistered analyses using the Adolescent Brain Cognitive Development Study dataset using wearable data collection in 5,686 adolescents (123,862 person-days or 2,972,688 person-hours) to determine whether wearable indices of resting heart rate (RHR), step count, and sleep duration and variability in these measures were cross-sectionally associated with internalizing symptomatology. All models were also run controlling for age, sex, body mass index, socioeconomic status, and race. We then performed prospective analyses on a subset of this sample (n = 143) across 25 months that had Fitbit data available at baseline and follow-up in order to explore directionality of effects. RESULTS: Cross-sectional analyses revealed a small, yet significant, effect size (R(2)  = .053) that higher RHR, lower step count and step count variability, and greater variability in sleep duration were associated with greater internalizing symptoms. Cross-lagged panel model analysis revealed that there were no prospective associations between wearable variables and internalizing symptoms (partial R(2)  = .026), but greater internalizing symptoms and higher RHR predicted lower step count 25 months later (partial R(2)  = .010), while higher RHR also predicted lower step count variability 25 months later (partial R(2)  = .008). CONCLUSIONS: Findings indicate that wearable indices concurrently associate with internalizing symptoms during early adolescence, while a larger sample size is likely required to accurately assess prospective or directional effects between wearable indices and mental health. Future research should capitalize on the temporal resolution provided by wearable devices to determine the intensive longitudinal relations between biobehavioral risk factors and acute changes in mental health. En ligne : http://dx.doi.org/10.1111/jcpp.13471 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=457
in Journal of Child Psychology and Psychiatry > 63-3 (March 2022) . - p.282-295[article] Concurrent and prospective associations between fitbit wearable-derived RDoC arousal and regulatory constructs and adolescent internalizing symptoms [texte imprimé] / Benjamin W. NELSON, Auteur ; Jessica E. FLANNERY, Auteur ; John FLOURNOY, Auteur ; Natasha DUELL, Auteur ; Mitchell J. PRINSTEIN, Auteur ; Eva TELZER, Auteur . - p.282-295.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 63-3 (March 2022) . - p.282-295
Mots-clés : Adolescence fitbit heart rate internalizing symptoms sleep steps wearables Index. décimale : PER Périodiques Résumé : BACKGROUND: Adolescence is characterized by alterations in biobehavioral functioning, during which individuals are at heightened risk for onset of psychopathology, particularly internalizing disorders. Researchers have proposed using digital technologies to index daily biobehavioral functioning, yet there is a dearth of research examining how wearable metrics are associated with mental health. METHODS: We preregistered analyses using the Adolescent Brain Cognitive Development Study dataset using wearable data collection in 5,686 adolescents (123,862 person-days or 2,972,688 person-hours) to determine whether wearable indices of resting heart rate (RHR), step count, and sleep duration and variability in these measures were cross-sectionally associated with internalizing symptomatology. All models were also run controlling for age, sex, body mass index, socioeconomic status, and race. We then performed prospective analyses on a subset of this sample (n = 143) across 25 months that had Fitbit data available at baseline and follow-up in order to explore directionality of effects. RESULTS: Cross-sectional analyses revealed a small, yet significant, effect size (R(2)  = .053) that higher RHR, lower step count and step count variability, and greater variability in sleep duration were associated with greater internalizing symptoms. Cross-lagged panel model analysis revealed that there were no prospective associations between wearable variables and internalizing symptoms (partial R(2)  = .026), but greater internalizing symptoms and higher RHR predicted lower step count 25 months later (partial R(2)  = .010), while higher RHR also predicted lower step count variability 25 months later (partial R(2)  = .008). CONCLUSIONS: Findings indicate that wearable indices concurrently associate with internalizing symptoms during early adolescence, while a larger sample size is likely required to accurately assess prospective or directional effects between wearable indices and mental health. Future research should capitalize on the temporal resolution provided by wearable devices to determine the intensive longitudinal relations between biobehavioral risk factors and acute changes in mental health. En ligne : http://dx.doi.org/10.1111/jcpp.13471 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=457 Within-person fluctuations in stressful life events, sleep, and anxiety and depression symptoms during adolescence: a multiwave prospective study / Constanza M. VIDAL BUSTAMANTE in Journal of Child Psychology and Psychiatry, 61-10 (October 2020)
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[article]
Titre : Within-person fluctuations in stressful life events, sleep, and anxiety and depression symptoms during adolescence: a multiwave prospective study Type de document : texte imprimé Auteurs : Constanza M. VIDAL BUSTAMANTE, Auteur ; Alexandra M. RODMAN, Auteur ; Meg J. DENNISON, Auteur ; John C. FLOURNOY, Auteur ; Patrick MAIR, Auteur ; Katie A. MCLAUGHLIN, Auteur Article en page(s) : p.1116-1125 Langues : Anglais (eng) Mots-clés : Adolescence actigraphy anxiety depression longitudinal sleep stress Index. décimale : PER Périodiques Résumé : BACKGROUND: Adolescence is characterized by substantial changes in sleep behavior, heightened exposure to stressful life events (SLEs), and elevated risk for internalizing problems like anxiety and depression. Although SLEs are consistently associated with the onset of internalizing psychopathology, the mechanisms underlying this relationship remain poorly understood, especially at the within-person level. Here, we leverage a high-frequency longitudinal design to examine sleep as a potential mechanism linking SLEs to increases in anxiety and depression symptoms over a one-year period. METHODS: Thirty female adolescents aged 15-17 years completed 12 monthly in-laboratory assessments of exposure to SLEs and symptoms of anxiety and depression (n = 355 monthly assessments), and wore an actigraphy wristband for continuous monitoring of sleep for the duration of the study (n = 6,824 sleep days). Multilevel models examined concurrent and lagged within-person associations between SLEs, sleep duration and timing regularity, and anxiety and depression symptoms. RESULTS: Within-person fluctuations in SLEs were associated with variability in sleep duration both concurrently and prospectively, such that when adolescents experienced greater SLEs than was typical for them, they exhibited more variable sleep duration that same month as well as the following month. In turn, within-person increases in sleep duration variability predicted greater anxiety symptoms in the same month and mediated the association between SLEs and anxiety. CONCLUSIONS: These findings highlight sleep disruptions as a mechanism underlying the longitudinal associations between SLEs and anxiety symptoms, and suggest that interventions promoting sleep schedule consistency may help mitigate risk for stress-related psychopathology in adolescence. En ligne : http://dx.doi.org/10.1111/jcpp.13234 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=432
in Journal of Child Psychology and Psychiatry > 61-10 (October 2020) . - p.1116-1125[article] Within-person fluctuations in stressful life events, sleep, and anxiety and depression symptoms during adolescence: a multiwave prospective study [texte imprimé] / Constanza M. VIDAL BUSTAMANTE, Auteur ; Alexandra M. RODMAN, Auteur ; Meg J. DENNISON, Auteur ; John C. FLOURNOY, Auteur ; Patrick MAIR, Auteur ; Katie A. MCLAUGHLIN, Auteur . - p.1116-1125.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 61-10 (October 2020) . - p.1116-1125
Mots-clés : Adolescence actigraphy anxiety depression longitudinal sleep stress Index. décimale : PER Périodiques Résumé : BACKGROUND: Adolescence is characterized by substantial changes in sleep behavior, heightened exposure to stressful life events (SLEs), and elevated risk for internalizing problems like anxiety and depression. Although SLEs are consistently associated with the onset of internalizing psychopathology, the mechanisms underlying this relationship remain poorly understood, especially at the within-person level. Here, we leverage a high-frequency longitudinal design to examine sleep as a potential mechanism linking SLEs to increases in anxiety and depression symptoms over a one-year period. METHODS: Thirty female adolescents aged 15-17 years completed 12 monthly in-laboratory assessments of exposure to SLEs and symptoms of anxiety and depression (n = 355 monthly assessments), and wore an actigraphy wristband for continuous monitoring of sleep for the duration of the study (n = 6,824 sleep days). Multilevel models examined concurrent and lagged within-person associations between SLEs, sleep duration and timing regularity, and anxiety and depression symptoms. RESULTS: Within-person fluctuations in SLEs were associated with variability in sleep duration both concurrently and prospectively, such that when adolescents experienced greater SLEs than was typical for them, they exhibited more variable sleep duration that same month as well as the following month. In turn, within-person increases in sleep duration variability predicted greater anxiety symptoms in the same month and mediated the association between SLEs and anxiety. CONCLUSIONS: These findings highlight sleep disruptions as a mechanism underlying the longitudinal associations between SLEs and anxiety symptoms, and suggest that interventions promoting sleep schedule consistency may help mitigate risk for stress-related psychopathology in adolescence. En ligne : http://dx.doi.org/10.1111/jcpp.13234 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=432

