Default mode network connectivity in children with a history of preschool onset depression / Michael S. GAFFREY in Journal of Child Psychology and Psychiatry, 53-9 (September 2012)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 53-9 (September 2012) . - p.964-72 Titre : Default mode network connectivity in children with a history of preschool onset depression Type de document : texte imprimé Auteurs : Michael S. GAFFREY, Auteur ; Joan L. LUBY ; Kelly N. BOTTERON, Auteur ; Grega REPOVS, Auteur ; Deanna M. BARCH, Auteur Année de publication : 2012 Article en page(s) : p.964-72 Langues : Anglais (eng) Mots-clés : Depression  functional connectivity  preschool  default mode network Index. décimale : PER Périodiques Résumé : Background:  Atypical Default Mode Network (DMN) functional connectivity has been previously reported in depressed adults. However, there is relatively little data informing the developmental nature of this phenomenon. The current case-control study examined the DMN in a unique prospective sample of school-age children with a previous history of preschool depression. Methods:  DMN functional connectivity was assessed using resting state functional connectivity magnetic resonance imaging data and the posterior cingulate (PCC) as a seed region of interest. Thirty-nine medication naïve school age children (21 with a history of preschool depression and 18 healthy peers) and their families who were ascertained as preschoolers and prospectively assessed over at least 4 annual waves as part of a federally funded study of preschool depression were included. Results:  Decreased connectivity between the PCC and regions within the middle temporal gyrus (MTG), inferior parietal lobule, and cerebellum was found in children with known depression during the preschool period. Increased connectivity between the PCC and regions within the subgenual and anterior cingulate cortices and anterior MTG bilaterally was also found in these children. Additionally, a clinically relevant ‘brain-behavior’ relationship between atypical functional connectivity of the PCC and disruptions in emotion regulation was identified. Conclusions:  To our knowledge, this is the first study to examine the DMN in children known to have experienced the onset of a clinically significant depressive syndrome during preschool. Results suggest that a history of preschool depression is associated with atypical DMN connectivity. However, longitudinal studies are needed to clarify whether the current findings of atypical DMN connectivity are a precursor or a consequence of preschool depression. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2012.02552.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=179 [article] Default mode network connectivity in children with a history of preschool onset depression [texte imprimé] / Michael S. GAFFREY, Auteur ; Joan L. LUBY ; Kelly N. BOTTERON, Auteur ; Grega REPOVS, Auteur ; Deanna M. BARCH, Auteur . - 2012 . - p.964-72. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 53-9 (September 2012) . - p.964-72 Mots-clés : Depression  functional connectivity  preschool  default mode network Index. décimale : PER Périodiques Résumé : Background:  Atypical Default Mode Network (DMN) functional connectivity has been previously reported in depressed adults. However, there is relatively little data informing the developmental nature of this phenomenon. The current case-control study examined the DMN in a unique prospective sample of school-age children with a previous history of preschool depression. Methods:  DMN functional connectivity was assessed using resting state functional connectivity magnetic resonance imaging data and the posterior cingulate (PCC) as a seed region of interest. Thirty-nine medication naïve school age children (21 with a history of preschool depression and 18 healthy peers) and their families who were ascertained as preschoolers and prospectively assessed over at least 4 annual waves as part of a federally funded study of preschool depression were included. Results:  Decreased connectivity between the PCC and regions within the middle temporal gyrus (MTG), inferior parietal lobule, and cerebellum was found in children with known depression during the preschool period. Increased connectivity between the PCC and regions within the subgenual and anterior cingulate cortices and anterior MTG bilaterally was also found in these children. Additionally, a clinically relevant ‘brain-behavior’ relationship between atypical functional connectivity of the PCC and disruptions in emotion regulation was identified. Conclusions:  To our knowledge, this is the first study to examine the DMN in children known to have experienced the onset of a clinically significant depressive syndrome during preschool. Results suggest that a history of preschool depression is associated with atypical DMN connectivity. However, longitudinal studies are needed to clarify whether the current findings of atypical DMN connectivity are a precursor or a consequence of preschool depression. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2012.02552.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=179

Serotonin transporter-linked polymorphic region (5-HTTLPR) genotype and stressful life events interact to predict preschool-onset depression: a replication and developmental extension / Ryan BOGDAN in Journal of Child Psychology and Psychiatry, 55-5 (May 2014)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 55-5 (May 2014) . - p.448-457 Titre : Serotonin transporter-linked polymorphic region (5-HTTLPR) genotype and stressful life events interact to predict preschool-onset depression: a replication and developmental extension Type de document : texte imprimé Auteurs : Ryan BOGDAN, Auteur ; Arpana AGRAWAL, Auteur ; Michael S. GAFFREY, Auteur ; Rebecca TILLMAN, Auteur ; Joan L. LUBY, Auteur Article en page(s) : p.448-457 Mots-clés : Depression  stress  5-HTTLPR  serotonin  gene*  interaction  plasticity  childhood  development  gene × environment Index. décimale : PER Périodiques Résumé : Background Scientific enthusiasm about gene × environment interactions, spurred by the 5-HTTLPR (serotonin transporter-linked polymorphic region) × SLEs (stressful life events) interaction predicting depression, have recently been tempered by sober realizations of small effects and meta-analyses reaching opposing conclusions. These mixed findings highlight the need for further research. Converging evidence suggests that the effects of 5-HTTLPR genotype may be neurodevelopmental in origin, but we are not aware of empirical studies that have investigated whether the 5-HTTLPR genotype × SLE interaction predicts preschool-onset depression (PO-MDD), the earliest validated form of depression. Methods Children (n = 234) aged 3–5 were recruited for a longitudinal study designed to examine PO-MDD. In a comprehensive baseline assessment, the child's primary caregivers completed questionnaires and were interviewed about their child's behaviors, psychiatric symptoms, and exposure to SLEs. Results A 5-HTTLPR × SLEs interaction emerged, such that children homozygous for the short allele were more susceptible to depression in the context of elevated SLE than long allele carriers. In contrast, at low SLE exposure, short allele homozygotes had fewer depressive symptoms. The data were best fit by a plasticity model with a substantial reduction in fit by diathesis-stress models. Conclusions Extending studies in adult and adolescent populations, these data suggest that 5-HTTLPR genotype may provide plasticity to environmental influence, for better or worse. Specifically, children homozygous for the short allele were more susceptible to the depressogenic effects of SLEs but benefitted, in the form of reduced depressive symptoms, in the context of relatively benign environmental conditions (i.e. relatively low SLE exposure). These data highlight the importance of examining gene × environment interactions across development, environment, and outcome but should be interpreted cautiously given the small sample size. En ligne : http://dx.doi.org/10.1111/jcpp.12142 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=231 [article] Serotonin transporter-linked polymorphic region (5-HTTLPR) genotype and stressful life events interact to predict preschool-onset depression: a replication and developmental extension [texte imprimé] / Ryan BOGDAN, Auteur ; Arpana AGRAWAL, Auteur ; Michael S. GAFFREY, Auteur ; Rebecca TILLMAN, Auteur ; Joan L. LUBY, Auteur . - p.448-457. in Journal of Child Psychology and Psychiatry > 55-5 (May 2014) . - p.448-457 Mots-clés : Depression  stress  5-HTTLPR  serotonin  gene*  interaction  plasticity  childhood  development  gene × environment Index. décimale : PER Périodiques Résumé : Background Scientific enthusiasm about gene × environment interactions, spurred by the 5-HTTLPR (serotonin transporter-linked polymorphic region) × SLEs (stressful life events) interaction predicting depression, have recently been tempered by sober realizations of small effects and meta-analyses reaching opposing conclusions. These mixed findings highlight the need for further research. Converging evidence suggests that the effects of 5-HTTLPR genotype may be neurodevelopmental in origin, but we are not aware of empirical studies that have investigated whether the 5-HTTLPR genotype × SLE interaction predicts preschool-onset depression (PO-MDD), the earliest validated form of depression. Methods Children (n = 234) aged 3–5 were recruited for a longitudinal study designed to examine PO-MDD. In a comprehensive baseline assessment, the child's primary caregivers completed questionnaires and were interviewed about their child's behaviors, psychiatric symptoms, and exposure to SLEs. Results A 5-HTTLPR × SLEs interaction emerged, such that children homozygous for the short allele were more susceptible to depression in the context of elevated SLE than long allele carriers. In contrast, at low SLE exposure, short allele homozygotes had fewer depressive symptoms. The data were best fit by a plasticity model with a substantial reduction in fit by diathesis-stress models. Conclusions Extending studies in adult and adolescent populations, these data suggest that 5-HTTLPR genotype may provide plasticity to environmental influence, for better or worse. Specifically, children homozygous for the short allele were more susceptible to the depressogenic effects of SLEs but benefitted, in the form of reduced depressive symptoms, in the context of relatively benign environmental conditions (i.e. relatively low SLE exposure). These data highlight the importance of examining gene × environment interactions across development, environment, and outcome but should be interpreted cautiously given the small sample size. En ligne : http://dx.doi.org/10.1111/jcpp.12142 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=231

Social origins of self-regulated attention during infancy and their disruption in autism spectrum disorder: Implications for early intervention / Michael S. GAFFREY in Development and Psychopathology, 32-4 (October 2020)  

Public ISBD [article]  inDevelopment and Psychopathology > 32-4 (October 2020) . - p.1362-1374 Titre : Social origins of self-regulated attention during infancy and their disruption in autism spectrum disorder: Implications for early intervention Type de document : texte imprimé Auteurs : Michael S. GAFFREY, Auteur ; Sarah MARKERT, Auteur ; Chen YU, Auteur Article en page(s) : p.1362-1374 Langues : Anglais (eng) Mots-clés : autism  autism spectrum disorder  eye tracking  infant  joint attention Index. décimale : PER Périodiques Résumé : To understand the complex relationships between autism spectrum disorder (ASD) and other frequently comorbid conditions, a growing number of studies have investigated the emergence of ASD during infancy. This research has suggested that symptoms of ASD and highly related comorbid conditions emerge from complex interactions between neurodevelopmental vulnerabilities and early environments, indicating that developing treatments to prevent ASD is highly challenging. However, it also suggests that attenuating the negative effects of ASD on future development once identified is possible. The present paper builds on this by conceptualizing developmental delays in nonsocial skills as the potential product of altered caregiver-infant interactions following the emergence of ASD during infancy. And, following emerging findings from caregiver-infant dyadic head-mounted eye-tracking (D-ET) research, it also suggests that a multiple pathway model of joint attention can provide mechanistic insights into how ASD alters the ability of caregiver and infant to create a context for infant learning. The potential for this view to inform early intervention is further discussed and illustrated through D-ET data collected prior to and following a brief, parent-mediated intervention for infant ASD. While promising, further research informing how a multiple pathway model of joint attention can inform ASD early intervention is needed. En ligne : http://dx.doi.org/10.1017/s0954579420000796 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=433 [article] Social origins of self-regulated attention during infancy and their disruption in autism spectrum disorder: Implications for early intervention [texte imprimé] / Michael S. GAFFREY, Auteur ; Sarah MARKERT, Auteur ; Chen YU, Auteur . - p.1362-1374. Langues : Anglais (eng) in Development and Psychopathology > 32-4 (October 2020) . - p.1362-1374 Mots-clés : autism  autism spectrum disorder  eye tracking  infant  joint attention Index. décimale : PER Périodiques Résumé : To understand the complex relationships between autism spectrum disorder (ASD) and other frequently comorbid conditions, a growing number of studies have investigated the emergence of ASD during infancy. This research has suggested that symptoms of ASD and highly related comorbid conditions emerge from complex interactions between neurodevelopmental vulnerabilities and early environments, indicating that developing treatments to prevent ASD is highly challenging. However, it also suggests that attenuating the negative effects of ASD on future development once identified is possible. The present paper builds on this by conceptualizing developmental delays in nonsocial skills as the potential product of altered caregiver-infant interactions following the emergence of ASD during infancy. And, following emerging findings from caregiver-infant dyadic head-mounted eye-tracking (D-ET) research, it also suggests that a multiple pathway model of joint attention can provide mechanistic insights into how ASD alters the ability of caregiver and infant to create a context for infant learning. The potential for this view to inform early intervention is further discussed and illustrated through D-ET data collected prior to and following a brief, parent-mediated intervention for infant ASD. While promising, further research informing how a multiple pathway model of joint attention can inform ASD early intervention is needed. En ligne : http://dx.doi.org/10.1017/s0954579420000796 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=433

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