4 recherche sur le mot-clé 'Hypothalamo-Hypophyseal System'

Associations between multisystem stress reactivity and peer nominated aggression in early childhood vary by sex / Melissa J. HAGAN in Development and Psychopathology, 32-5 (December 2020)  

Public ISBD [article]  inDevelopment and Psychopathology > 32-5 (December 2020) . - p.1888-1898 Titre : Associations between multisystem stress reactivity and peer nominated aggression in early childhood vary by sex Type de document : Texte imprimé et/ou numérique Auteurs : Melissa J. HAGAN, Auteur ; Danielle S. ROUBINOV, Auteur ; W. Thomas BOYCE, Auteur ; Nicole R. BUSH, Auteur Article en page(s) : p.1888-1898 Langues : Anglais (eng) Mots-clés : *Aggression  Child  Child, Preschool  Female  Humans  Hydrocortisone  Hypothalamo-Hypophyseal System  Male  Pituitary-Adrenal System  *Saliva  Stress, Psychological  *cortisol reactivity  *early childhood  *peer-directed aggression  *sympathetic reactivity Index. décimale : PER Périodiques Résumé : There is emerging evidence that the development of problematic aggression in childhood may be associated with specific physiological stress response patterns, with both biological overactivation and underactivation implicated. This study tested associations between sex-specific patterns of stress responses across the sympathetic nervous system (SNS) and hypothalamic-pituitary-adrenal (HPA) axis and peer nominations of aggression among 271 kindergarten children (Mean age = 5.32 years; 52% Female; 44% White). Upon entry to kindergarten, children participated in a multidomain standardized stress paradigm. Changes in pre-ejection period (PEP) and salivary cortisol were assessed. On a separate day, children provided peer ratings of physical and relational aggression in a standardized interview. As expected, there was a significant three-way interaction between PEP, cortisol reactivity, and sex, but only for physical aggression. Among boys, cortisol reactivity was positively associated with physical aggression only for those with higher SNS reactivity. Findings suggest that for boys, asymmetrical and symmetrical HPA/SNS reactivity may be associated with lower and higher risk for peer-directed physical aggression, respectively. Understanding the complex associations between multisystem physiology, child sex and peer-directed aggression in early childhood may offer insight into individual differences underlying the emergence of behavioral dysregulation in early peer contexts. En ligne : http://dx.doi.org/10.1017/s0954579420001406 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437 [article] Associations between multisystem stress reactivity and peer nominated aggression in early childhood vary by sex [Texte imprimé et/ou numérique] / Melissa J. HAGAN, Auteur ; Danielle S. ROUBINOV, Auteur ; W. Thomas BOYCE, Auteur ; Nicole R. BUSH, Auteur . - p.1888-1898. Langues : Anglais (eng) in Development and Psychopathology > 32-5 (December 2020) . - p.1888-1898 Mots-clés : *Aggression  Child  Child, Preschool  Female  Humans  Hydrocortisone  Hypothalamo-Hypophyseal System  Male  Pituitary-Adrenal System  *Saliva  Stress, Psychological  *cortisol reactivity  *early childhood  *peer-directed aggression  *sympathetic reactivity Index. décimale : PER Périodiques Résumé : There is emerging evidence that the development of problematic aggression in childhood may be associated with specific physiological stress response patterns, with both biological overactivation and underactivation implicated. This study tested associations between sex-specific patterns of stress responses across the sympathetic nervous system (SNS) and hypothalamic-pituitary-adrenal (HPA) axis and peer nominations of aggression among 271 kindergarten children (Mean age = 5.32 years; 52% Female; 44% White). Upon entry to kindergarten, children participated in a multidomain standardized stress paradigm. Changes in pre-ejection period (PEP) and salivary cortisol were assessed. On a separate day, children provided peer ratings of physical and relational aggression in a standardized interview. As expected, there was a significant three-way interaction between PEP, cortisol reactivity, and sex, but only for physical aggression. Among boys, cortisol reactivity was positively associated with physical aggression only for those with higher SNS reactivity. Findings suggest that for boys, asymmetrical and symmetrical HPA/SNS reactivity may be associated with lower and higher risk for peer-directed physical aggression, respectively. Understanding the complex associations between multisystem physiology, child sex and peer-directed aggression in early childhood may offer insight into individual differences underlying the emergence of behavioral dysregulation in early peer contexts. En ligne : http://dx.doi.org/10.1017/s0954579420001406 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437

Environmental determinants of physiological reactivity to stress: The interacting effects of early life deprivation, caregiving quality, and stressful life events / Mark WADE in Development and Psychopathology, 32-5 (December 2020)  

Public ISBD [article]  inDevelopment and Psychopathology > 32-5 (December 2020) . - p.1732-1742 Titre : Environmental determinants of physiological reactivity to stress: The interacting effects of early life deprivation, caregiving quality, and stressful life events Type de document : Texte imprimé et/ou numérique Auteurs : Mark WADE, Auteur ; Margaret A. SHERIDAN, Auteur ; Charles H. ZEANAH, Auteur ; Nathan A. FOX, Auteur ; Charles A. NELSON, Auteur ; Katie A. MCLAUGHLIN, Auteur Article en page(s) : p.1732-1742 Langues : Anglais (eng) Mots-clés : Adolescent  Child  *Child, Institutionalized  Foster Home Care  Humans  Hydrocortisone  Hypothalamo-Hypophyseal System  *Pituitary-Adrenal System  Psychosocial Deprivation  Stress, Psychological  *HPA-axis  *developmental psychobiology  *institutional rearing  *neglect  *stress reactivity  *sympathetic nervous system Index. décimale : PER Périodiques Résumé : Children who spend their early lives in institutions experience profound psychosocial deprivation that is associated with altered stress response system development. Here, we used data from a longitudinal randomized controlled trial of foster care for institutionally reared children to examine whether caregiving quality and stressful life events (SLEs) in early adolescence (age 12) influence patterns of hypothalamic-pituitary-adrenal (HPA) axis and sympathetic nervous system (SNS) reactivity. Controlling for the effect of institutional care, higher caregiving quality at age 12 was associated with heightened cortisol and SNS reactivity. However, moderation analysis revealed that the latter effect was only observed among never-institutionalized children, whereas ever-institutionalized children demonstrated a persistently blunted SNS response regardless of recent caregiving quality. Among institutionally reared children, SLEs interacted with prior random assignment to foster care, such that those placed in foster care early in development had a SNS response that approximated never-institutionalized children when SLEs at age 12 were low. In contrast, SNS reactivity was persistently blunted among those with prolonged deprivation, regardless of recent SLEs. Early-life deprivation is associated with persistent blunting of stress response systems, but normalization may be achievable if SLEs are limited following placement into enriched family-based care. En ligne : http://dx.doi.org/10.1017/s0954579420001327 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437 [article] Environmental determinants of physiological reactivity to stress: The interacting effects of early life deprivation, caregiving quality, and stressful life events [Texte imprimé et/ou numérique] / Mark WADE, Auteur ; Margaret A. SHERIDAN, Auteur ; Charles H. ZEANAH, Auteur ; Nathan A. FOX, Auteur ; Charles A. NELSON, Auteur ; Katie A. MCLAUGHLIN, Auteur . - p.1732-1742. Langues : Anglais (eng) in Development and Psychopathology > 32-5 (December 2020) . - p.1732-1742 Mots-clés : Adolescent  Child  *Child, Institutionalized  Foster Home Care  Humans  Hydrocortisone  Hypothalamo-Hypophyseal System  *Pituitary-Adrenal System  Psychosocial Deprivation  Stress, Psychological  *HPA-axis  *developmental psychobiology  *institutional rearing  *neglect  *stress reactivity  *sympathetic nervous system Index. décimale : PER Périodiques Résumé : Children who spend their early lives in institutions experience profound psychosocial deprivation that is associated with altered stress response system development. Here, we used data from a longitudinal randomized controlled trial of foster care for institutionally reared children to examine whether caregiving quality and stressful life events (SLEs) in early adolescence (age 12) influence patterns of hypothalamic-pituitary-adrenal (HPA) axis and sympathetic nervous system (SNS) reactivity. Controlling for the effect of institutional care, higher caregiving quality at age 12 was associated with heightened cortisol and SNS reactivity. However, moderation analysis revealed that the latter effect was only observed among never-institutionalized children, whereas ever-institutionalized children demonstrated a persistently blunted SNS response regardless of recent caregiving quality. Among institutionally reared children, SLEs interacted with prior random assignment to foster care, such that those placed in foster care early in development had a SNS response that approximated never-institutionalized children when SLEs at age 12 were low. In contrast, SNS reactivity was persistently blunted among those with prolonged deprivation, regardless of recent SLEs. Early-life deprivation is associated with persistent blunting of stress response systems, but normalization may be achievable if SLEs are limited following placement into enriched family-based care. En ligne : http://dx.doi.org/10.1017/s0954579420001327 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437

Cortisol and socioeconomic status in early childhood: A multidimensional assessment / Amanda R. TARULLO in Development and Psychopathology, 32-5 (December 2020)  

Public ISBD [article]  inDevelopment and Psychopathology > 32-5 (December 2020) . - p.1876-1887 Titre : Cortisol and socioeconomic status in early childhood: A multidimensional assessment Type de document : Texte imprimé et/ou numérique Auteurs : Amanda R. TARULLO, Auteur ; Charu T. TULADHAR, Auteur ; Katie KAO, Auteur ; Eleanor B. DRURY, Auteur ; Jerrold MEYER, Auteur Article en page(s) : p.1876-1887 Langues : Anglais (eng) Mots-clés : Child  Child, Preschool  Humans  *Hydrocortisone  Hypothalamo-Hypophyseal System  Infant  Pituitary-Adrenal System  *Saliva  Social Class  Stress, Psychological  *food insecurity  *hair cortisol  *salivary cortisol  *socioeconomic status  *stress Index. décimale : PER Périodiques Résumé : The hypothalamic-pituitary-adrenal (HPA) axis is sensitive to early life stress, with enduring consequences for biological stress vulnerability and health (Gunnar & Talge, 2008). Low socioeconomic status (SES) is associated with dysregulation of the stress hormone cortisol in early childhood. However, a mechanistic understanding of this association is lacking. Multidimensional assessment of both SES and cortisol is needed to characterize the intricate relations between SES and cortisol function in early childhood. We assessed parent-reported family income, parent education, occupational prestige, neighborhood risk, food insecurity, and household chaos for 12-month-old infants (N = 90) and 3.5-year-old children (N = 91). Hair cortisol concentration (HCC) was obtained from parent and child, indexing chronic biological stress, and diurnal salivary cortisol was measured in the children. Controlling for parent HCC, parent education uniquely predicted infant and child HCC and, in addition, neighborhood risk uniquely predicted infant HCC. Household chaos predicted bedtime salivary cortisol concentration (SCC) for both infants and children, and infant daily cortisol output. Food insecurity was associated with flattened cortisol slope in 3.5-year-old children. Parental sensitivity did not mediate relations between SES and cortisol. Results highlight the utility of SES measures that index unpredictable and unsafe contexts, such as neighborhood risk, food insecurity, and household chaos. En ligne : http://dx.doi.org/10.1017/s0954579420001315 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437 [article] Cortisol and socioeconomic status in early childhood: A multidimensional assessment [Texte imprimé et/ou numérique] / Amanda R. TARULLO, Auteur ; Charu T. TULADHAR, Auteur ; Katie KAO, Auteur ; Eleanor B. DRURY, Auteur ; Jerrold MEYER, Auteur . - p.1876-1887. Langues : Anglais (eng) in Development and Psychopathology > 32-5 (December 2020) . - p.1876-1887 Mots-clés : Child  Child, Preschool  Humans  *Hydrocortisone  Hypothalamo-Hypophyseal System  Infant  Pituitary-Adrenal System  *Saliva  Social Class  Stress, Psychological  *food insecurity  *hair cortisol  *salivary cortisol  *socioeconomic status  *stress Index. décimale : PER Périodiques Résumé : The hypothalamic-pituitary-adrenal (HPA) axis is sensitive to early life stress, with enduring consequences for biological stress vulnerability and health (Gunnar & Talge, 2008). Low socioeconomic status (SES) is associated with dysregulation of the stress hormone cortisol in early childhood. However, a mechanistic understanding of this association is lacking. Multidimensional assessment of both SES and cortisol is needed to characterize the intricate relations between SES and cortisol function in early childhood. We assessed parent-reported family income, parent education, occupational prestige, neighborhood risk, food insecurity, and household chaos for 12-month-old infants (N = 90) and 3.5-year-old children (N = 91). Hair cortisol concentration (HCC) was obtained from parent and child, indexing chronic biological stress, and diurnal salivary cortisol was measured in the children. Controlling for parent HCC, parent education uniquely predicted infant and child HCC and, in addition, neighborhood risk uniquely predicted infant HCC. Household chaos predicted bedtime salivary cortisol concentration (SCC) for both infants and children, and infant daily cortisol output. Food insecurity was associated with flattened cortisol slope in 3.5-year-old children. Parental sensitivity did not mediate relations between SES and cortisol. Results highlight the utility of SES measures that index unpredictable and unsafe contexts, such as neighborhood risk, food insecurity, and household chaos. En ligne : http://dx.doi.org/10.1017/s0954579420001315 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437

Enhancing diurnal cortisol regulation among young children adopted internationally: A randomized controlled trial of a parenting-based intervention / K. Lee RABY in Development and Psychopathology, 32-5 (December 2020)  

Public ISBD [article]  inDevelopment and Psychopathology > 32-5 (December 2020) . - p.1657-1668 Titre : Enhancing diurnal cortisol regulation among young children adopted internationally: A randomized controlled trial of a parenting-based intervention Type de document : Texte imprimé et/ou numérique Auteurs : K. Lee RABY, Auteur ; Kristin BERNARD, Auteur ; M. Kathleen GORDON, Auteur ; Mary DOZIER, Auteur Article en page(s) : p.1657-1668 Langues : Anglais (eng) Mots-clés : Child  *Child, Adopted  Child, Preschool  Humans  *Hydrocortisone  Hypothalamo-Hypophyseal System  Infant  Parenting  Pituitary-Adrenal System  *cortisol  *early adversity  *international adoption  *intervention  *parental sensitivity Index. décimale : PER Périodiques Résumé : Children who have been adopted internationally commonly experience institutional care and other forms of adversity prior to adoption that can alter the functioning of the hypothalamic-pituitary-adrenal (HPA) axis. In particular, internationally adopted children tend to have blunted diurnal declines compared to children raised in their birth families. The Attachment and Biobehavioral Catch-Up (ABC) intervention was developed to enhance young children's biological and behavioral regulation by promoting sensitive parenting. The current study used a randomized controlled trial to assess whether ABC improved the diurnal functioning of the HPA axis among 85 children who had been adopted internationally when they were between the ages of 4 and 33 months (M = 16.12). Prior to the intervention, there were no significant differences in diurnal cortisol production between children whose parents were randomly assigned to receive ABC and children whose parents were randomly assigned to receive a control intervention. After the intervention, children whose parents had received the ABC intervention exhibited steeper declines in cortisol levels throughout the day than children whose parents had received the control intervention. These results indicate that the ABC intervention is effective in enhancing a healthy pattern of diurnal HPA axis regulation for young children who have been adopted internationally. En ligne : http://dx.doi.org/10.1017/s0954579420001303 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437 [article] Enhancing diurnal cortisol regulation among young children adopted internationally: A randomized controlled trial of a parenting-based intervention [Texte imprimé et/ou numérique] / K. Lee RABY, Auteur ; Kristin BERNARD, Auteur ; M. Kathleen GORDON, Auteur ; Mary DOZIER, Auteur . - p.1657-1668. Langues : Anglais (eng) in Development and Psychopathology > 32-5 (December 2020) . - p.1657-1668 Mots-clés : Child  *Child, Adopted  Child, Preschool  Humans  *Hydrocortisone  Hypothalamo-Hypophyseal System  Infant  Parenting  Pituitary-Adrenal System  *cortisol  *early adversity  *international adoption  *intervention  *parental sensitivity Index. décimale : PER Périodiques Résumé : Children who have been adopted internationally commonly experience institutional care and other forms of adversity prior to adoption that can alter the functioning of the hypothalamic-pituitary-adrenal (HPA) axis. In particular, internationally adopted children tend to have blunted diurnal declines compared to children raised in their birth families. The Attachment and Biobehavioral Catch-Up (ABC) intervention was developed to enhance young children's biological and behavioral regulation by promoting sensitive parenting. The current study used a randomized controlled trial to assess whether ABC improved the diurnal functioning of the HPA axis among 85 children who had been adopted internationally when they were between the ages of 4 and 33 months (M = 16.12). Prior to the intervention, there were no significant differences in diurnal cortisol production between children whose parents were randomly assigned to receive ABC and children whose parents were randomly assigned to receive a control intervention. After the intervention, children whose parents had received the ABC intervention exhibited steeper declines in cortisol levels throughout the day than children whose parents had received the control intervention. These results indicate that the ABC intervention is effective in enhancing a healthy pattern of diurnal HPA axis regulation for young children who have been adopted internationally. En ligne : http://dx.doi.org/10.1017/s0954579420001303 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437