4 recherche sur le mot-clé '*adolescence'

Differential brain activity as a function of social evaluative stress in early adolescence: Brain function and salivary cortisol / Max P. HERZBERG in Development and Psychopathology, 32-5 (December 2020)  

Public ISBD [article]  inDevelopment and Psychopathology > 32-5 (December 2020) . - p.1926-1936 Titre : Differential brain activity as a function of social evaluative stress in early adolescence: Brain function and salivary cortisol Type de document : Texte imprimé et/ou numérique Auteurs : Max P. HERZBERG, Auteur ; Ruskin H. HUNT, Auteur ; Kathleen M. THOMAS, Auteur ; Megan R. GUNNAR, Auteur Article en page(s) : p.1926-1936 Langues : Anglais (eng) Mots-clés : Adolescent  Adult  Brain/diagnostic imaging  Child  Humans  *Hydrocortisone  Magnetic Resonance Imaging  Minnesota  *Saliva  Stress, Psychological/diagnostic imaging  *adolescence  *brain function  *cortisol  *socially evaluative stress Index. décimale : PER Périodiques Résumé : Understanding individual differences in neural responses to stressful environments is an important avenue of research throughout development. These differences may be especially critical during adolescence, which is characterized by opportunities for healthy development and increased susceptibility to the development of psychopathology. While the neural correlates of the psychosocial stress response have been investigated in adults, these links have not been explored during development. Using a new task, the Minnesota Imaging Stress Test in Children (MISTiC), differences in activation are found in fusiform gyrus, superior frontal gyrus, insula, and anterior cingulate cortex when comparing a stressful math task to a nonstressful math task. The MISTiC task successfully elicits cortisol responses in a similar proportion of adolescents as in behavioral studies while collecting brain imaging data. Cortisol responders and nonresponders did not differ in their perceived stress level or behavioral performance during the task despite differences in neuroendocrine function. Future research will be able to leverage the MISTiC task for many purposes, including probing associations between individual differences in stress responses with environmental conditions, personality differences, and the development of psychopathology. En ligne : http://dx.doi.org/10.1017/s095457942000125x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437 [article] Differential brain activity as a function of social evaluative stress in early adolescence: Brain function and salivary cortisol [Texte imprimé et/ou numérique] / Max P. HERZBERG, Auteur ; Ruskin H. HUNT, Auteur ; Kathleen M. THOMAS, Auteur ; Megan R. GUNNAR, Auteur . - p.1926-1936. Langues : Anglais (eng) in Development and Psychopathology > 32-5 (December 2020) . - p.1926-1936 Mots-clés : Adolescent  Adult  Brain/diagnostic imaging  Child  Humans  *Hydrocortisone  Magnetic Resonance Imaging  Minnesota  *Saliva  Stress, Psychological/diagnostic imaging  *adolescence  *brain function  *cortisol  *socially evaluative stress Index. décimale : PER Périodiques Résumé : Understanding individual differences in neural responses to stressful environments is an important avenue of research throughout development. These differences may be especially critical during adolescence, which is characterized by opportunities for healthy development and increased susceptibility to the development of psychopathology. While the neural correlates of the psychosocial stress response have been investigated in adults, these links have not been explored during development. Using a new task, the Minnesota Imaging Stress Test in Children (MISTiC), differences in activation are found in fusiform gyrus, superior frontal gyrus, insula, and anterior cingulate cortex when comparing a stressful math task to a nonstressful math task. The MISTiC task successfully elicits cortisol responses in a similar proportion of adolescents as in behavioral studies while collecting brain imaging data. Cortisol responders and nonresponders did not differ in their perceived stress level or behavioral performance during the task despite differences in neuroendocrine function. Future research will be able to leverage the MISTiC task for many purposes, including probing associations between individual differences in stress responses with environmental conditions, personality differences, and the development of psychopathology. En ligne : http://dx.doi.org/10.1017/s095457942000125x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437

Racial discrimination and ethnic racial identity in adolescence as modulators of HPA axis activity / Emma K. ADAM in Development and Psychopathology, 32-5 (December 2020)  

Public ISBD [article]  inDevelopment and Psychopathology > 32-5 (December 2020) . - p.1669-1684 Titre : Racial discrimination and ethnic racial identity in adolescence as modulators of HPA axis activity Type de document : Texte imprimé et/ou numérique Auteurs : Emma K. ADAM, Auteur ; Emily F. HITTNER, Auteur ; Sara E. THOMAS, Auteur ; Sarah Collier VILLAUME, Auteur ; Ednah E. NWAFOR, Auteur Article en page(s) : p.1669-1684 Langues : Anglais (eng) Mots-clés : Adolescent  Adult  Child  Ethnic Groups  Humans  Hydrocortisone  *Hypothalamo-Hypophyseal System  Pituitary-Adrenal System  *Racism  Stress, Psychological  *HPA axis  *adolescence  *adversity  *cortisol  *early adulthood  *ethnic racial identity  *racial discrimination Index. décimale : PER Périodiques Résumé : We review evidence of racial discrimination as a critical and understudied form of adversity that has the potential to impact stress biology, particularly hypothalamic-pituitary-adrenal (HPA) axis activity. We highlight ethnic racial identity (ERI) as a positive regulatory influence on HPA axis activity, as indexed by levels of salivary cortisol. In past research by our group, Black individuals with high adolescent discrimination had low adult cortisol levels (hypocortisolism). Here, we present new analyses showing that ERI, measured prospectively from ages 12 through 32 in 112 Black and white individuals, is related to better-regulated cortisol levels in adulthood, particularly for Black participants. We also describe ongoing research that explores whether the promotion of ERI during adolescence can reduce ethnic-racial disparities in stress biology and in emotional health and academic outcomes. En ligne : http://dx.doi.org/10.1017/s095457942000111x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437 [article] Racial discrimination and ethnic racial identity in adolescence as modulators of HPA axis activity [Texte imprimé et/ou numérique] / Emma K. ADAM, Auteur ; Emily F. HITTNER, Auteur ; Sara E. THOMAS, Auteur ; Sarah Collier VILLAUME, Auteur ; Ednah E. NWAFOR, Auteur . - p.1669-1684. Langues : Anglais (eng) in Development and Psychopathology > 32-5 (December 2020) . - p.1669-1684 Mots-clés : Adolescent  Adult  Child  Ethnic Groups  Humans  Hydrocortisone  *Hypothalamo-Hypophyseal System  Pituitary-Adrenal System  *Racism  Stress, Psychological  *HPA axis  *adolescence  *adversity  *cortisol  *early adulthood  *ethnic racial identity  *racial discrimination Index. décimale : PER Périodiques Résumé : We review evidence of racial discrimination as a critical and understudied form of adversity that has the potential to impact stress biology, particularly hypothalamic-pituitary-adrenal (HPA) axis activity. We highlight ethnic racial identity (ERI) as a positive regulatory influence on HPA axis activity, as indexed by levels of salivary cortisol. In past research by our group, Black individuals with high adolescent discrimination had low adult cortisol levels (hypocortisolism). Here, we present new analyses showing that ERI, measured prospectively from ages 12 through 32 in 112 Black and white individuals, is related to better-regulated cortisol levels in adulthood, particularly for Black participants. We also describe ongoing research that explores whether the promotion of ERI during adolescence can reduce ethnic-racial disparities in stress biology and in emotional health and academic outcomes. En ligne : http://dx.doi.org/10.1017/s095457942000111x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437

Sympathetic nervous system dominance during stress recovery mediates associations between stress sensitivity and social anxiety symptoms in female adolescents / Tiffany C. HO in Development and Psychopathology, 32-5 (December 2020)  

Public ISBD [article]  inDevelopment and Psychopathology > 32-5 (December 2020) . - p.1914-1925 Titre : Sympathetic nervous system dominance during stress recovery mediates associations between stress sensitivity and social anxiety symptoms in female adolescents Type de document : Texte imprimé et/ou numérique Auteurs : Tiffany C. HO, Auteur ; Holly T. PHAM, Auteur ; Jonas G. MILLER, Auteur ; Katharina KIRCANSKI, Auteur ; Ian H. GOTLIB, Auteur Article en page(s) : p.1914-1925 Langues : Anglais (eng) Mots-clés : Adolescent  Anxiety  Autonomic Nervous System  Female  Heart Rate  Humans  Male  *Respiratory Sinus Arrhythmia  Stress, Psychological  Sympathetic Nervous System  *adolescence  *skin conductance level stress  *social anxiety disorder Index. décimale : PER Périodiques Résumé : Social anxiety disorder (SAD) is commonly diagnosed during adolescence and is associated with psychological stress reactivity and heightened physiological arousal. No study, however, has systematically examined which aspects of autonomic nervous system function mediate likely links between stress sensitivity and social anxiety symptoms in adolescents. Here, we assessed 163 adolescents (90 females; 12.29 ± 1.39 years) with respect to life stress and social anxiety symptoms, and measured respiratory sinus arrhythmia (RSA) and skin conductance levels (SCL) during a psychosocial stress paradigm. We operationalized stress sensitivity as the residual variance in subjective stress severity after accounting for objective severity and changes in autonomic regulation using standardized change scores in RSA and SCL. In females only, stress sensitivity and social anxiety symptoms were significantly correlated with each other (p < .001) and with autonomic regulation during both reactivity and recovery (all ps < 0.04). Further, sympathetic nervous system dominance during recovery specifically mediated associations between stress sensitivity and social anxiety symptoms (B = 1.06, 95% CI: 0.02-2.64). In contrast, in males, stress sensitivity, autonomic regulation during reactivity or recovery, and social anxiety symptoms were not significantly associated (all ps > 0.1). We interpret these results in the context of psychobiological models of SAD and discuss implications for interventions targeting autonomic processes. En ligne : http://dx.doi.org/10.1017/s0954579420001261 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437 [article] Sympathetic nervous system dominance during stress recovery mediates associations between stress sensitivity and social anxiety symptoms in female adolescents [Texte imprimé et/ou numérique] / Tiffany C. HO, Auteur ; Holly T. PHAM, Auteur ; Jonas G. MILLER, Auteur ; Katharina KIRCANSKI, Auteur ; Ian H. GOTLIB, Auteur . - p.1914-1925. Langues : Anglais (eng) in Development and Psychopathology > 32-5 (December 2020) . - p.1914-1925 Mots-clés : Adolescent  Anxiety  Autonomic Nervous System  Female  Heart Rate  Humans  Male  *Respiratory Sinus Arrhythmia  Stress, Psychological  Sympathetic Nervous System  *adolescence  *skin conductance level stress  *social anxiety disorder Index. décimale : PER Périodiques Résumé : Social anxiety disorder (SAD) is commonly diagnosed during adolescence and is associated with psychological stress reactivity and heightened physiological arousal. No study, however, has systematically examined which aspects of autonomic nervous system function mediate likely links between stress sensitivity and social anxiety symptoms in adolescents. Here, we assessed 163 adolescents (90 females; 12.29 ± 1.39 years) with respect to life stress and social anxiety symptoms, and measured respiratory sinus arrhythmia (RSA) and skin conductance levels (SCL) during a psychosocial stress paradigm. We operationalized stress sensitivity as the residual variance in subjective stress severity after accounting for objective severity and changes in autonomic regulation using standardized change scores in RSA and SCL. In females only, stress sensitivity and social anxiety symptoms were significantly correlated with each other (p < .001) and with autonomic regulation during both reactivity and recovery (all ps < 0.04). Further, sympathetic nervous system dominance during recovery specifically mediated associations between stress sensitivity and social anxiety symptoms (B = 1.06, 95% CI: 0.02-2.64). In contrast, in males, stress sensitivity, autonomic regulation during reactivity or recovery, and social anxiety symptoms were not significantly associated (all ps > 0.1). We interpret these results in the context of psychobiological models of SAD and discuss implications for interventions targeting autonomic processes. En ligne : http://dx.doi.org/10.1017/s0954579420001261 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437

The prospective association between stressful life events and inflammation among adolescents with a history of early institutional rearing / Alva TANG in Development and Psychopathology, 32-5 (December 2020)  

Public ISBD [article]  inDevelopment and Psychopathology > 32-5 (December 2020) . - p.1715-1724 Titre : The prospective association between stressful life events and inflammation among adolescents with a history of early institutional rearing Type de document : Texte imprimé et/ou numérique Auteurs : Alva TANG, Auteur ; Mark WADE, Auteur ; Nathan A. FOX, Auteur ; Charles A. NELSON, Auteur ; Charles H. ZEANAH, Auteur ; Natalie SLOPEN, Auteur Article en page(s) : p.1715-1724 Langues : Anglais (eng) Mots-clés : Adolescent  Child  *Child, Institutionalized  Child, Preschool  *Foster Home Care  Humans  Infant  Inflammation  Prospective Studies  Romania  *adolescence  *inflammation  *neglect  *stress sensitization  *stressful life events Index. décimale : PER Périodiques Résumé : Early adversity has been shown to sensitize individuals to the effects of later stress and enhance risk of psychopathology. Using a longitudinal randomized trial of foster care as an alternative to institutional care, we extend the stress sensitization hypothesis to examine whether early institutional rearing sensitizes individuals to stressful events in adolescence engendering chronic low-grade inflammation. At baseline, institutionalized children in Romania (ages 6-31 months) were randomly assigned to foster care or to remain in usual care within institutions. A group of never-institutionalized children was recruited as an in-country comparison sample. At ages 12 and 16, participants reported stressful events. At age 16, Interleukin-6 (IL-6) and C-reactive protein (CRP) were derived from blood spots. Among children assigned to care as usual, more stressful events at age 12, but not age 16, were associated with higher IL-6. In the same group, stressful events at age 16 were associated with higher CRP, though these effects attenuated after adjusting for covariates. These associations were not observed in the foster care or never-institutionalized groups. The findings suggest that heightened inflammation following stress exposure is one pathway through which early neglect could compromise physical health. In contrast, early family care might buffer against these risks. En ligne : http://dx.doi.org/10.1017/s0954579420001479 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437 [article] The prospective association between stressful life events and inflammation among adolescents with a history of early institutional rearing [Texte imprimé et/ou numérique] / Alva TANG, Auteur ; Mark WADE, Auteur ; Nathan A. FOX, Auteur ; Charles A. NELSON, Auteur ; Charles H. ZEANAH, Auteur ; Natalie SLOPEN, Auteur . - p.1715-1724. Langues : Anglais (eng) in Development and Psychopathology > 32-5 (December 2020) . - p.1715-1724 Mots-clés : Adolescent  Child  *Child, Institutionalized  Child, Preschool  *Foster Home Care  Humans  Infant  Inflammation  Prospective Studies  Romania  *adolescence  *inflammation  *neglect  *stress sensitization  *stressful life events Index. décimale : PER Périodiques Résumé : Early adversity has been shown to sensitize individuals to the effects of later stress and enhance risk of psychopathology. Using a longitudinal randomized trial of foster care as an alternative to institutional care, we extend the stress sensitization hypothesis to examine whether early institutional rearing sensitizes individuals to stressful events in adolescence engendering chronic low-grade inflammation. At baseline, institutionalized children in Romania (ages 6-31 months) were randomly assigned to foster care or to remain in usual care within institutions. A group of never-institutionalized children was recruited as an in-country comparison sample. At ages 12 and 16, participants reported stressful events. At age 16, Interleukin-6 (IL-6) and C-reactive protein (CRP) were derived from blood spots. Among children assigned to care as usual, more stressful events at age 12, but not age 16, were associated with higher IL-6. In the same group, stressful events at age 16 were associated with higher CRP, though these effects attenuated after adjusting for covariates. These associations were not observed in the foster care or never-institutionalized groups. The findings suggest that heightened inflammation following stress exposure is one pathway through which early neglect could compromise physical health. In contrast, early family care might buffer against these risks. En ligne : http://dx.doi.org/10.1017/s0954579420001479 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=437