Are some children genetically predisposed to poor sleep? A polygenic risk study in the general population / Desana KOCEVSKA in Journal of Child Psychology and Psychiatry, 65-5 (May 2024)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 65-5 (May 2024) . - p.710-719 Titre : Are some children genetically predisposed to poor sleep? A polygenic risk study in the general population Type de document : texte imprimé Auteurs : Desana KOCEVSKA, Auteur ; Katerina TRAJANOSKA, Auteur ; Rosa H. MULDER, Auteur ; Maria Elisabeth KOOPMAN-VERHOEFF, Auteur ; Annemarie I. LUIK, Auteur ; Henning TIEMEIER, Auteur ; Eus J.W. VAN SOMEREN, Auteur Article en page(s) : p.710-719 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Background Twin studies show moderate heritability of sleep traits: 40% for insomnia symptoms and 46% for sleep duration. Genome-wide association studies (GWAS) have identified genetic variants involved in insomnia and sleep duration in adults, but it is unknown whether these variants affect sleep during early development. We assessed whether polygenic risk scores for insomnia (PRS-I) and sleep duration (PRS-SD) affect sleep throughout early childhood to adolescence. Methods We included 2,458 children of European ancestry (51% girls). Insomnia-related items of the Child Behavior Checklist were reported by mothers at child's age 1.5, 3, and 6 years. At 10-15 years, the Sleep Disturbance Scale for Children and actigraphy were assessed in a subsample (N = 975). Standardized PRS-I and PRS-SD (higher scores indicate genetic susceptibility for insomnia and longer sleep duration, respectively) were computed at multiple p-value thresholds based on largest GWAS to date. Results Children with higher PRS-I had more insomnia-related sleep problems between 1.5 and 15 years (BPRS-I < 0.001 = .09, 95% CI: 0.05; 0.14). PRS-SD was not associated with mother-reported sleep problems. A higher PRS-SD was in turn associated with longer actigraphically estimated sleep duration (BPRS-SD < 5e08 = .05, 95% CI: 0.001; 0.09) and more wake after sleep onset (BPRS-SD < 0.005 = .25, 95% CI: 0.04; 0.47) at 10-15 years, but these associations did not survive multiple testing correction. Conclusions Children who are genetically predisposed to insomnia have more insomnia-like sleep problems, whereas those who are genetically predisposed to longer sleep have longer sleep duration, but are also more awake during the night in adolescence. This indicates that polygenic risk for sleep traits, based on GWAS in adults, affects sleep already in children. En ligne : https://doi.org/10.1111/jcpp.13899 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=526 [article] Are some children genetically predisposed to poor sleep? A polygenic risk study in the general population [texte imprimé] / Desana KOCEVSKA, Auteur ; Katerina TRAJANOSKA, Auteur ; Rosa H. MULDER, Auteur ; Maria Elisabeth KOOPMAN-VERHOEFF, Auteur ; Annemarie I. LUIK, Auteur ; Henning TIEMEIER, Auteur ; Eus J.W. VAN SOMEREN, Auteur . - p.710-719. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 65-5 (May 2024) . - p.710-719 Index. décimale : PER Périodiques Résumé : Background Twin studies show moderate heritability of sleep traits: 40% for insomnia symptoms and 46% for sleep duration. Genome-wide association studies (GWAS) have identified genetic variants involved in insomnia and sleep duration in adults, but it is unknown whether these variants affect sleep during early development. We assessed whether polygenic risk scores for insomnia (PRS-I) and sleep duration (PRS-SD) affect sleep throughout early childhood to adolescence. Methods We included 2,458 children of European ancestry (51% girls). Insomnia-related items of the Child Behavior Checklist were reported by mothers at child's age 1.5, 3, and 6 years. At 10-15 years, the Sleep Disturbance Scale for Children and actigraphy were assessed in a subsample (N = 975). Standardized PRS-I and PRS-SD (higher scores indicate genetic susceptibility for insomnia and longer sleep duration, respectively) were computed at multiple p-value thresholds based on largest GWAS to date. Results Children with higher PRS-I had more insomnia-related sleep problems between 1.5 and 15 years (BPRS-I < 0.001 = .09, 95% CI: 0.05; 0.14). PRS-SD was not associated with mother-reported sleep problems. A higher PRS-SD was in turn associated with longer actigraphically estimated sleep duration (BPRS-SD < 5e08 = .05, 95% CI: 0.001; 0.09) and more wake after sleep onset (BPRS-SD < 0.005 = .25, 95% CI: 0.04; 0.47) at 10-15 years, but these associations did not survive multiple testing correction. Conclusions Children who are genetically predisposed to insomnia have more insomnia-like sleep problems, whereas those who are genetically predisposed to longer sleep have longer sleep duration, but are also more awake during the night in adolescence. This indicates that polygenic risk for sleep traits, based on GWAS in adults, affects sleep already in children. En ligne : https://doi.org/10.1111/jcpp.13899 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=526

Childhood sleep disturbances and white matter microstructure in preadolescence / Tessa A. MULDER in Journal of Child Psychology and Psychiatry, 60-11 (November 2019)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 60-11 (November 2019) . - p.1242-1250 Titre : Childhood sleep disturbances and white matter microstructure in preadolescence Type de document : texte imprimé Auteurs : Tessa A. MULDER, Auteur ; Desana KOCEVSKA, Auteur ; Ryan L. MUETZEL, Auteur ; Maria Elisabeth KOOPMAN-VERHOEFF, Auteur ; Manon H.J. HILLEGERS, Auteur ; Tiffany C. WHITE, Auteur ; Henning TIEMEIER, Auteur Article en page(s) : p.1242-1250 Langues : Anglais (eng) Mots-clés : Dti  Sleep problems  repeated measurements  white matter microstructure Index. décimale : PER Périodiques Résumé : BACKGROUND: Sleep problems occur in up to 30% of children and have been associated with adverse developmental outcomes. However, due to a lack of longitudinal neuroimaging studies, the neurobiological changes that may underlie some of these associations have remained unclear. This study explored the association between sleep problems during childhood and white matter (WM) microstructure in preadolescence. METHODS: Children from the population-based birth cohort, the Generation R Study, who had repeatedly assessed sleep problems between 1.5 and 10 years of age and a MRI scan at age 10 (N = 2,449), were included. Mothers reported on their child's sleep problems using the Child Behavior Checklist (CBCL 1.5-5) when children were 1.5, 3, and 6 years of age. At age 2, mothers completed very similar questions. At age 10, both children and their mothers reported on sleep problems. We used whole-brain and tract-specific fractional anisotropy (FA) and mean diffusivity (MD) values obtained through diffusion tensor imaging as measures of WM microstructure. RESULTS: Childhood sleep problems at 1.5, 2, and 6 years of age were associated with less WM microstructural integrity (approximately 0.05 SD lower global FA score per 1-SD sleep problems). In repeated-measures analyses, children with more sleep problems (per 1-SD) at baseline had lower FA values at age 10 in particular in the corticospinal tract (-0.12 SD, 95% CI:-0.20;-0.05), the uncinate fasciculus (-0.12 SD, 95% CI:-0.19;-0.05), and the forceps major (-0.11 SD, 95% CI:-0.18;-0.03), although effect estimates across the tracts did not differ substantially. CONCLUSIONS: Childhood sleep disturbances are associated with less WM microstructural integrity in preadolescence. Our results show that early neurodevelopment may be a period of particular vulnerability to sleep problems. This study cannot demonstrate causality but suggests that preventive interventions addressing sleep problems should be further explored to test whether they impact adverse neurodevelopment. En ligne : http://dx.doi.org/10.1111/jcpp.13085 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=408 [article] Childhood sleep disturbances and white matter microstructure in preadolescence [texte imprimé] / Tessa A. MULDER, Auteur ; Desana KOCEVSKA, Auteur ; Ryan L. MUETZEL, Auteur ; Maria Elisabeth KOOPMAN-VERHOEFF, Auteur ; Manon H.J. HILLEGERS, Auteur ; Tiffany C. WHITE, Auteur ; Henning TIEMEIER, Auteur . - p.1242-1250. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 60-11 (November 2019) . - p.1242-1250 Mots-clés : Dti  Sleep problems  repeated measurements  white matter microstructure Index. décimale : PER Périodiques Résumé : BACKGROUND: Sleep problems occur in up to 30% of children and have been associated with adverse developmental outcomes. However, due to a lack of longitudinal neuroimaging studies, the neurobiological changes that may underlie some of these associations have remained unclear. This study explored the association between sleep problems during childhood and white matter (WM) microstructure in preadolescence. METHODS: Children from the population-based birth cohort, the Generation R Study, who had repeatedly assessed sleep problems between 1.5 and 10 years of age and a MRI scan at age 10 (N = 2,449), were included. Mothers reported on their child's sleep problems using the Child Behavior Checklist (CBCL 1.5-5) when children were 1.5, 3, and 6 years of age. At age 2, mothers completed very similar questions. At age 10, both children and their mothers reported on sleep problems. We used whole-brain and tract-specific fractional anisotropy (FA) and mean diffusivity (MD) values obtained through diffusion tensor imaging as measures of WM microstructure. RESULTS: Childhood sleep problems at 1.5, 2, and 6 years of age were associated with less WM microstructural integrity (approximately 0.05 SD lower global FA score per 1-SD sleep problems). In repeated-measures analyses, children with more sleep problems (per 1-SD) at baseline had lower FA values at age 10 in particular in the corticospinal tract (-0.12 SD, 95% CI:-0.20;-0.05), the uncinate fasciculus (-0.12 SD, 95% CI:-0.19;-0.05), and the forceps major (-0.11 SD, 95% CI:-0.18;-0.03), although effect estimates across the tracts did not differ substantially. CONCLUSIONS: Childhood sleep disturbances are associated with less WM microstructural integrity in preadolescence. Our results show that early neurodevelopment may be a period of particular vulnerability to sleep problems. This study cannot demonstrate causality but suggests that preventive interventions addressing sleep problems should be further explored to test whether they impact adverse neurodevelopment. En ligne : http://dx.doi.org/10.1111/jcpp.13085 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=408

Cognitive performance in children and adolescents with psychopathology traits: A cross-sectional multicohort study in the general population / Elisabet BLOK in Development and Psychopathology, 35-2 (May 2023)  

Public ISBD [article]  inDevelopment and Psychopathology > 35-2 (May 2023) . - p.926-940 Titre : Cognitive performance in children and adolescents with psychopathology traits: A cross-sectional multicohort study in the general population Type de document : texte imprimé Auteurs : Elisabet BLOK, Auteur ; Isabel K. SCHUURMANS, Auteur ; Anne J. TIJBURG, Auteur ; Manon H.J. HILLEGERS, Auteur ; Maria Elisabeth KOOPMAN-VERHOEFF, Auteur ; Ryan L. MUETZEL, Auteur ; Henning TIEMEIER, Auteur ; Tonya WHITE, Auteur Article en page(s) : p.926-940 Langues : Anglais (eng) Mots-clés : adolescence  childhood  cognition  Child Behavior Checklist  psychopathology Index. décimale : PER Périodiques Résumé : Psychopathology and cognitive development are closely related. Assessing the relationship between multiple domains of psychopathology and cognitive performance can elucidate which cognitive tasks are related to specific domains of psychopathology. This can help build theory and improve clinical decision-making in the future. In this study, we included 13,841 children and adolescents drawn from two large population-based samples (Generation R and ABCD studies). We assessed the cross-sectional relationship between three psychopathology domains (internalizing, externalizing, dysregulation profile (DP)) and four cognitive domains (vocabulary, fluid reasoning, working memory, and processing speed) and the full-scale intelligence quotient. Lastly, differential associations between symptoms of psychopathology and cognitive performance by sex were assessed. Results indicated that internalizing symptoms were related to worse performance in working memory and processing speed, but better performance in the verbal domain. Externalizing and DP symptoms were related to poorer global cognitive performance. Notably, those in the DP subgroup had a 5.0 point lower IQ than those without behavioral problems. Cognitive performance was more heavily affected in boys than in girls given comparable levels of psychopathology. Taken together, we provide evidence for globally worse cognitive performance in children and adolescents with externalizing and DP symptoms, with those in the DP subgroup being most heavily affected. En ligne : http://dx.doi.org/10.1017/S0954579422000165 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=504 [article] Cognitive performance in children and adolescents with psychopathology traits: A cross-sectional multicohort study in the general population [texte imprimé] / Elisabet BLOK, Auteur ; Isabel K. SCHUURMANS, Auteur ; Anne J. TIJBURG, Auteur ; Manon H.J. HILLEGERS, Auteur ; Maria Elisabeth KOOPMAN-VERHOEFF, Auteur ; Ryan L. MUETZEL, Auteur ; Henning TIEMEIER, Auteur ; Tonya WHITE, Auteur . - p.926-940. Langues : Anglais (eng) in Development and Psychopathology > 35-2 (May 2023) . - p.926-940 Mots-clés : adolescence  childhood  cognition  Child Behavior Checklist  psychopathology Index. décimale : PER Périodiques Résumé : Psychopathology and cognitive development are closely related. Assessing the relationship between multiple domains of psychopathology and cognitive performance can elucidate which cognitive tasks are related to specific domains of psychopathology. This can help build theory and improve clinical decision-making in the future. In this study, we included 13,841 children and adolescents drawn from two large population-based samples (Generation R and ABCD studies). We assessed the cross-sectional relationship between three psychopathology domains (internalizing, externalizing, dysregulation profile (DP)) and four cognitive domains (vocabulary, fluid reasoning, working memory, and processing speed) and the full-scale intelligence quotient. Lastly, differential associations between symptoms of psychopathology and cognitive performance by sex were assessed. Results indicated that internalizing symptoms were related to worse performance in working memory and processing speed, but better performance in the verbal domain. Externalizing and DP symptoms were related to poorer global cognitive performance. Notably, those in the DP subgroup had a 5.0 point lower IQ than those without behavioral problems. Cognitive performance was more heavily affected in boys than in girls given comparable levels of psychopathology. Taken together, we provide evidence for globally worse cognitive performance in children and adolescents with externalizing and DP symptoms, with those in the DP subgroup being most heavily affected. En ligne : http://dx.doi.org/10.1017/S0954579422000165 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=504

Genome-wide DNA methylation patterns associated with sleep and mental health in children: a population-based study / Maria Elisabeth KOOPMAN-VERHOEFF 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.1061-1069 Titre : Genome-wide DNA methylation patterns associated with sleep and mental health in children: a population-based study Type de document : texte imprimé Auteurs : Maria Elisabeth KOOPMAN-VERHOEFF, Auteur ; Rosa H. MULDER, Auteur ; Jared M. SALETIN, Auteur ; Irwin REISS, Auteur ; Gijsbertus T.J. VAN DER HORST, Auteur ; Janine F. FELIX, Auteur ; Mary A. CARSKADON, Auteur ; Henning TIEMEIER, Auteur ; Charlotte A.M. CECIL, Auteur Article en page(s) : p.1061-1069 Langues : Anglais (eng) Mots-clés : DNA methylation  accelerometer  epigenetics  epigenome  psychopathology  sleep Index. décimale : PER Périodiques Résumé : BACKGROUND: DNA methylation (DNAm) has been implicated in the biology of sleep. Yet, how DNAm patterns across the genome relate to different sleep outcomes, and whether these associations overlap with mental health is currently unknown. Here, we investigated associations of DNAm with sleep and mental health in a pediatric population. METHODS: This cross-sectional study included 465 10-year-old children (51.3% female) from the Generation R Study. Genome-wide DNAm levels were measured using the Illumina 450K array (peripheral blood). Sleep problems were assessed from self-report and mental health outcomes from maternal questionnaires. Wrist actigraphy was used in 188 11-year-old children to calculate sleep duration and midpoint sleep. Weighted gene co-expression network analysis was used to identify highly comethylated DNAm 'modules', which were tested for associations with sleep and mental health outcomes. RESULTS: We identified 64 DNAm modules, one of which associated with sleep duration after covariate and multiple testing adjustment. This module included CpG sites spanning 9 genes on chromosome 17, including MAPT - a key regulator of Tau proteins in the brain involved in neuronal function - as well as genes previously implicated in sleep duration. Follow-up analyses suggested that DNAm variation in this region is under considerable genetic control and shows strong blood-brain concordance. DNAm modules associated with sleep did not overlap with those associated with mental health. CONCLUSIONS: We identified one DNAm region associated with sleep duration, including genes previously reported by recent GWAS studies. Further research is warranted to examine the functional role of this region and its longitudinal association with sleep. En ligne : http://dx.doi.org/10.1111/jcpp.13252 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=432 [article] Genome-wide DNA methylation patterns associated with sleep and mental health in children: a population-based study [texte imprimé] / Maria Elisabeth KOOPMAN-VERHOEFF, Auteur ; Rosa H. MULDER, Auteur ; Jared M. SALETIN, Auteur ; Irwin REISS, Auteur ; Gijsbertus T.J. VAN DER HORST, Auteur ; Janine F. FELIX, Auteur ; Mary A. CARSKADON, Auteur ; Henning TIEMEIER, Auteur ; Charlotte A.M. CECIL, Auteur . - p.1061-1069. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 61-10 (October 2020) . - p.1061-1069 Mots-clés : DNA methylation  accelerometer  epigenetics  epigenome  psychopathology  sleep Index. décimale : PER Périodiques Résumé : BACKGROUND: DNA methylation (DNAm) has been implicated in the biology of sleep. Yet, how DNAm patterns across the genome relate to different sleep outcomes, and whether these associations overlap with mental health is currently unknown. Here, we investigated associations of DNAm with sleep and mental health in a pediatric population. METHODS: This cross-sectional study included 465 10-year-old children (51.3% female) from the Generation R Study. Genome-wide DNAm levels were measured using the Illumina 450K array (peripheral blood). Sleep problems were assessed from self-report and mental health outcomes from maternal questionnaires. Wrist actigraphy was used in 188 11-year-old children to calculate sleep duration and midpoint sleep. Weighted gene co-expression network analysis was used to identify highly comethylated DNAm 'modules', which were tested for associations with sleep and mental health outcomes. RESULTS: We identified 64 DNAm modules, one of which associated with sleep duration after covariate and multiple testing adjustment. This module included CpG sites spanning 9 genes on chromosome 17, including MAPT - a key regulator of Tau proteins in the brain involved in neuronal function - as well as genes previously implicated in sleep duration. Follow-up analyses suggested that DNAm variation in this region is under considerable genetic control and shows strong blood-brain concordance. DNAm modules associated with sleep did not overlap with those associated with mental health. CONCLUSIONS: We identified one DNAm region associated with sleep duration, including genes previously reported by recent GWAS studies. Further research is warranted to examine the functional role of this region and its longitudinal association with sleep. En ligne : http://dx.doi.org/10.1111/jcpp.13252 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=432

Preschool family irregularity and the development of sleep problems in childhood: a longitudinal study / Maria Elisabeth KOOPMAN-VERHOEFF in Journal of Child Psychology and Psychiatry, 60-8 (August 2019)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 60-8 (August 2019) . - p.857-865 Titre : Preschool family irregularity and the development of sleep problems in childhood: a longitudinal study Type de document : texte imprimé Auteurs : Maria Elisabeth KOOPMAN-VERHOEFF, Auteur ; Fadila SERDAREVIC, Auteur ; Desana KOCEVSKA, Auteur ; F. Fenne BODRIJ, Auteur ; Viara R. MILEVA-SEITZ, Auteur ; Irwin REISS, Auteur ; Manon H.J. HILLEGERS, Auteur ; Henning TIEMEIER, Auteur ; Charlotte A.M. CECIL, Auteur ; Frank C. VERHULST, Auteur ; Maartje P.C.M. LUIJK, Auteur Article en page(s) : p.857-865 Langues : Anglais (eng) Mots-clés : Family chaos  accelerometer  actigraphy  developmental psychopathology  family routines  longitudinal  sleep duration Index. décimale : PER Périodiques Résumé : BACKGROUND: Previous studies have shown that poor family environments are related to more sleep problems; however, little is known about how family irregularity in early life affects the development of sleep problems over childhood using objective sleep measures. The current study tests the hypothesis that early family irregularity contributes to the development of sleep problems. METHODS: This population-based study comprises 5,443 children from the Generation R Study. Family irregularity was measured with seven maternal-reported questions on family routines when children were 2 and 4 years old. Mothers reported on sleep problems at child age 3, 6, and 10 years, whereas children completed questionnaires on sleep problems at age 10. Additionally, we used tri-axial wrist accelerometers for five nights in 851 children (mean age 11.7 years) to assess sleep objectively. RESULTS: Family irregularity was associated with more mother- and child-reported sleep problems at ages 3, 6, and 10 years as well as with a shorter sleep duration and later objective sleep onset, but not with sleep efficiency or waking time. The association between family irregularity and multi-informant subjective sleep problems at age 10 years was mediated by mother-reported child psychopathology at age 6 years. CONCLUSIONS: Our findings show a long-term robust association of preschool family irregularity with more sleep problems during childhood as well as shorter sleep duration and later sleep onset as measured objectively with actigraphy. In part, these sleep problems were associated with family irregularity by way of child psychopathology. These findings suggest that interventions improving preschool family irregularity, which are targeted to reduce child psychopathology, may also impact the development of sleep problems beneficially. En ligne : http://dx.doi.org/10.1111/jcpp.13060 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=404 [article] Preschool family irregularity and the development of sleep problems in childhood: a longitudinal study [texte imprimé] / Maria Elisabeth KOOPMAN-VERHOEFF, Auteur ; Fadila SERDAREVIC, Auteur ; Desana KOCEVSKA, Auteur ; F. Fenne BODRIJ, Auteur ; Viara R. MILEVA-SEITZ, Auteur ; Irwin REISS, Auteur ; Manon H.J. HILLEGERS, Auteur ; Henning TIEMEIER, Auteur ; Charlotte A.M. CECIL, Auteur ; Frank C. VERHULST, Auteur ; Maartje P.C.M. LUIJK, Auteur . - p.857-865. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 60-8 (August 2019) . - p.857-865 Mots-clés : Family chaos  accelerometer  actigraphy  developmental psychopathology  family routines  longitudinal  sleep duration Index. décimale : PER Périodiques Résumé : BACKGROUND: Previous studies have shown that poor family environments are related to more sleep problems; however, little is known about how family irregularity in early life affects the development of sleep problems over childhood using objective sleep measures. The current study tests the hypothesis that early family irregularity contributes to the development of sleep problems. METHODS: This population-based study comprises 5,443 children from the Generation R Study. Family irregularity was measured with seven maternal-reported questions on family routines when children were 2 and 4 years old. Mothers reported on sleep problems at child age 3, 6, and 10 years, whereas children completed questionnaires on sleep problems at age 10. Additionally, we used tri-axial wrist accelerometers for five nights in 851 children (mean age 11.7 years) to assess sleep objectively. RESULTS: Family irregularity was associated with more mother- and child-reported sleep problems at ages 3, 6, and 10 years as well as with a shorter sleep duration and later objective sleep onset, but not with sleep efficiency or waking time. The association between family irregularity and multi-informant subjective sleep problems at age 10 years was mediated by mother-reported child psychopathology at age 6 years. CONCLUSIONS: Our findings show a long-term robust association of preschool family irregularity with more sleep problems during childhood as well as shorter sleep duration and later sleep onset as measured objectively with actigraphy. In part, these sleep problems were associated with family irregularity by way of child psychopathology. These findings suggest that interventions improving preschool family irregularity, which are targeted to reduce child psychopathology, may also impact the development of sleep problems beneficially. En ligne : http://dx.doi.org/10.1111/jcpp.13060 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=404

The bidirectional association between sleep problems and autism spectrum disorder: a population-based cohort study / Maria E. VERHOEFF in Molecular Autism, 9 (2018)  

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