Allostasis and allostatic load in the context of poverty in early childhood / Clancy BLAIR in Development and Psychopathology, 23-3 (August 2011)  

Public ISBD [article]  inDevelopment and Psychopathology > 23-3 (August 2011) . - p.845-857 Titre : Allostasis and allostatic load in the context of poverty in early childhood Type de document : texte imprimé Auteurs : Clancy BLAIR, Auteur ; C. Cybele RAVER, Auteur ; Douglas A. GRANGER, Auteur ; W. Roger MILLS-KOONCE, Auteur ; Leah C. HIBEL, Auteur ; THE FAMILY LIFE PROJECT KEY INVESTIGATORS, Auteur Année de publication : 2011 Article en page(s) : p.845-857 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : This paper examined the relation of early environmental adversity associated with poverty to child resting or basal level of cortisol in a prospective longitudinal sample of 1135 children seen at 7, 15, 24, 35, and 48 months of age. We found main effects for poor housing quality, African American ethnicity, and low positive caregiving behavior in which each was uniquely associated with an overall higher level of cortisol from age 7 to 48 months. We also found that two aspects of the early environment in the context of poverty, adult exits from the home and perceived economic insufficiency, were related to salivary cortisol in a time-dependent manner. The effect for the first of these, exits from the home, was consistent with the principle of allostatic load in which the effects of adversity on stress physiology accumulate over time. The effect for perceived economic insufficiency was one in which insufficiency was associated with higher levels of cortisol in infancy but with a typical but steeper decline in cortisol with age at subsequent time points. En ligne : http://dx.doi.org/10.1017/S0954579411000344 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=132 [article] Allostasis and allostatic load in the context of poverty in early childhood [texte imprimé] / Clancy BLAIR, Auteur ; C. Cybele RAVER, Auteur ; Douglas A. GRANGER, Auteur ; W. Roger MILLS-KOONCE, Auteur ; Leah C. HIBEL, Auteur ; THE FAMILY LIFE PROJECT KEY INVESTIGATORS, Auteur . - 2011 . - p.845-857. Langues : Anglais (eng) in Development and Psychopathology > 23-3 (August 2011) . - p.845-857 Index. décimale : PER Périodiques Résumé : This paper examined the relation of early environmental adversity associated with poverty to child resting or basal level of cortisol in a prospective longitudinal sample of 1135 children seen at 7, 15, 24, 35, and 48 months of age. We found main effects for poor housing quality, African American ethnicity, and low positive caregiving behavior in which each was uniquely associated with an overall higher level of cortisol from age 7 to 48 months. We also found that two aspects of the early environment in the context of poverty, adult exits from the home and perceived economic insufficiency, were related to salivary cortisol in a time-dependent manner. The effect for the first of these, exits from the home, was consistent with the principle of allostatic load in which the effects of adversity on stress physiology accumulate over time. The effect for perceived economic insufficiency was one in which insufficiency was associated with higher levels of cortisol in infancy but with a typical but steeper decline in cortisol with age at subsequent time points. En ligne : http://dx.doi.org/10.1017/S0954579411000344 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=132

Greater fear reactivity and psychophysiological hyperactivity among infants with later conduct problems and callous-unemotional traits / W. Roger MILLS-KOONCE in Journal of Child Psychology and Psychiatry, 56-2 (February 2015)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 56-2 (February 2015) . - p.147-154 Titre : Greater fear reactivity and psychophysiological hyperactivity among infants with later conduct problems and callous-unemotional traits Type de document : texte imprimé Auteurs : W. Roger MILLS-KOONCE, Auteur ; Nicholas J. WAGNER, Auteur ; Michael T. WILLOUGHBY, Auteur ; Cynthia STIFTER, Auteur ; Clancy BLAIR, Auteur ; Douglas A. GRANGER, Auteur ; THE FAMILY LIFE PROJECT KEY INVESTIGATORS, Auteur Article en page(s) : p.147-154 Langues : Anglais (eng) Mots-clés : Fearlessness  psychobiology  autonomic  cortisol  conduct problems  callous-unemotional traits Index. décimale : PER Périodiques Résumé : Background Approximately one third of children who meet criteria for conduct problems (CP) are also characterized by elevated callous-unemotional (CU) traits. This subgroup is at elevated risk for more pervasive and extreme levels of later antisocial behavior and has been characterized by a fearlessness temperament and blunted stress psychophysiology at older ages. The objective of this study was to examine group differences in fear reactivity and stress psychophysiology in infancy among children classified as having CP with CU (CP + CU), CP without CU (CP only), or no CP in later childhood. Methods A birth cohort study (n = 1,292) was followed longitudinally from birth through first grade. Behavioral fear, baseline heart period (HP) and respiratory sinus arrhythmia (RSA), and pretask, 20-min posttask, and 40-min posttask salivary cortisol were assessed at 6 and 15 months of age around a fear challenge task. CP and CU were assessed by maternal report at first grade and children were classified into CP and CU groups if they scored in the upper 10th percentile of these ratings. Results No group differences were observed in children at 6 months of age. However, at 15 months of age children with later CP + CU displayed greater high-intensity fear behavior, higher pretask and overall cortisol levels, and lower levels of HP and RSA compared to children with CP only and children with no CP. Conclusions The discrepancy between the biobehavioral correlates of conduct problems with callous-unemotional traits in infancy and those reported from studies of older children and adults suggests that the etiology of this behavioral phenotype may be more complex than a simple genetic maturation model. En ligne : http://dx.doi.org/10.1111/jcpp.12289 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=259 [article] Greater fear reactivity and psychophysiological hyperactivity among infants with later conduct problems and callous-unemotional traits [texte imprimé] / W. Roger MILLS-KOONCE, Auteur ; Nicholas J. WAGNER, Auteur ; Michael T. WILLOUGHBY, Auteur ; Cynthia STIFTER, Auteur ; Clancy BLAIR, Auteur ; Douglas A. GRANGER, Auteur ; THE FAMILY LIFE PROJECT KEY INVESTIGATORS, Auteur . - p.147-154. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 56-2 (February 2015) . - p.147-154 Mots-clés : Fearlessness  psychobiology  autonomic  cortisol  conduct problems  callous-unemotional traits Index. décimale : PER Périodiques Résumé : Background Approximately one third of children who meet criteria for conduct problems (CP) are also characterized by elevated callous-unemotional (CU) traits. This subgroup is at elevated risk for more pervasive and extreme levels of later antisocial behavior and has been characterized by a fearlessness temperament and blunted stress psychophysiology at older ages. The objective of this study was to examine group differences in fear reactivity and stress psychophysiology in infancy among children classified as having CP with CU (CP + CU), CP without CU (CP only), or no CP in later childhood. Methods A birth cohort study (n = 1,292) was followed longitudinally from birth through first grade. Behavioral fear, baseline heart period (HP) and respiratory sinus arrhythmia (RSA), and pretask, 20-min posttask, and 40-min posttask salivary cortisol were assessed at 6 and 15 months of age around a fear challenge task. CP and CU were assessed by maternal report at first grade and children were classified into CP and CU groups if they scored in the upper 10th percentile of these ratings. Results No group differences were observed in children at 6 months of age. However, at 15 months of age children with later CP + CU displayed greater high-intensity fear behavior, higher pretask and overall cortisol levels, and lower levels of HP and RSA compared to children with CP only and children with no CP. Conclusions The discrepancy between the biobehavioral correlates of conduct problems with callous-unemotional traits in infancy and those reported from studies of older children and adults suggests that the etiology of this behavioral phenotype may be more complex than a simple genetic maturation model. En ligne : http://dx.doi.org/10.1111/jcpp.12289 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=259

Interparental aggression, attention skills, and early childhood behavior problems / Nissa R. TOWE-GOODMAN in Development and Psychopathology, 23-2 (May 2011)  

Public ISBD [article]  inDevelopment and Psychopathology > 23-2 (May 2011) . - p.563-576 Titre : Interparental aggression, attention skills, and early childhood behavior problems Type de document : texte imprimé Auteurs : Nissa R. TOWE-GOODMAN, Auteur ; Cynthia A. STIFTER, Auteur ; Michael A. COCCIA, Auteur ; Martha J. COX, Auteur ; THE FAMILY LIFE PROJECT KEY INVESTIGATORS, Auteur Année de publication : 2011 Article en page(s) : p.563-576 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : The current study explored longitudinal associations between interparental aggression, the development of child attention skills, and early childhood behavior problems in a diverse sample of 636 families living in predominately low-income, nonmetropolitan communities. The results of latent-variable, cross-lagged longitudinal models revealed that maternal-reported interparental aggression in infancy predicted reduced observed attention skills in toddlerhood; no association was observed, however, between attention in infancy and interparental aggression during the toddler years. Further, reduced toddler attention and high interparental aggression were both associated with increased risk for attention-deficit/hyperactivity disorder symptoms and conduct problems at 3 years of age. Processes largely operated in similar ways regardless of child gender or low-income status, although a few differences were observed. Overall, the results suggest that interparental aggression undermines attention development, putting children's early behavioral adjustment at risk. En ligne : http://dx.doi.org/10.1017/S0954579411000216 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=121 [article] Interparental aggression, attention skills, and early childhood behavior problems [texte imprimé] / Nissa R. TOWE-GOODMAN, Auteur ; Cynthia A. STIFTER, Auteur ; Michael A. COCCIA, Auteur ; Martha J. COX, Auteur ; THE FAMILY LIFE PROJECT KEY INVESTIGATORS, Auteur . - 2011 . - p.563-576. Langues : Anglais (eng) in Development and Psychopathology > 23-2 (May 2011) . - p.563-576 Index. décimale : PER Périodiques Résumé : The current study explored longitudinal associations between interparental aggression, the development of child attention skills, and early childhood behavior problems in a diverse sample of 636 families living in predominately low-income, nonmetropolitan communities. The results of latent-variable, cross-lagged longitudinal models revealed that maternal-reported interparental aggression in infancy predicted reduced observed attention skills in toddlerhood; no association was observed, however, between attention in infancy and interparental aggression during the toddler years. Further, reduced toddler attention and high interparental aggression were both associated with increased risk for attention-deficit/hyperactivity disorder symptoms and conduct problems at 3 years of age. Processes largely operated in similar ways regardless of child gender or low-income status, although a few differences were observed. Overall, the results suggest that interparental aggression undermines attention development, putting children's early behavioral adjustment at risk. En ligne : http://dx.doi.org/10.1017/S0954579411000216 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=121

Maternal sensitivity buffers the adrenocortical implications of intimate partner violence exposure during early childhood / Leah C. HIBEL in Development and Psychopathology, 23-2 (May 2011)  

Public ISBD [article]  inDevelopment and Psychopathology > 23-2 (May 2011) . - p.689-701 Titre : Maternal sensitivity buffers the adrenocortical implications of intimate partner violence exposure during early childhood Type de document : texte imprimé Auteurs : Leah C. HIBEL, Auteur ; Douglas A. GRANGER, Auteur ; Clancy BLAIR, Auteur ; Martha J. COX, Auteur ; THE FAMILY LIFE PROJECT KEY INVESTIGATORS, Auteur Année de publication : 2011 Article en page(s) : p.689-701 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : This study prospectively examined the effect of intimate partner violence (IPV) on adrenocortical reactivity and recovery during early childhood. The sample (n = 1102 mother–infant dyads; 49.2% male) was racially diverse and from predominantly low-income, rural communities. To measure IPV exposure mothers completed the Conflicts Tactics Scale, and her caretaking behaviors were observed when her child was approximately 7, 15, and 24 months of age. Children's saliva samples, later assayed for cortisol, were collected around challenge tasks designed to elicit emotional reactivity. IPV was related to a trajectory of increased cortisol reactivity from infancy to toddlerhood. By contrast, the trajectory for non-IPV-exposed children decreased in cortisol reactivity across 7 to 24 months of age. At the 24-month assessment, on average, toddlers did not exhibit a cortisol reaction; however, those exposed to high levels of violence continued to have reactivity. Accumulative levels of IPV across the first 2 years of life predicted cortisol reactivity at 24 months of age. Early (7-month) sensitive maternal behavior moderated this relationship, so that only children exposed to both early insensitivity and high accumulated IPV exhibited increased reactivity at the 24-month assessment. Findings are discussed in relation to the risky family framework. En ligne : http://dx.doi.org/10.1017/S0954579411000010 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=121 [article] Maternal sensitivity buffers the adrenocortical implications of intimate partner violence exposure during early childhood [texte imprimé] / Leah C. HIBEL, Auteur ; Douglas A. GRANGER, Auteur ; Clancy BLAIR, Auteur ; Martha J. COX, Auteur ; THE FAMILY LIFE PROJECT KEY INVESTIGATORS, Auteur . - 2011 . - p.689-701. Langues : Anglais (eng) in Development and Psychopathology > 23-2 (May 2011) . - p.689-701 Index. décimale : PER Périodiques Résumé : This study prospectively examined the effect of intimate partner violence (IPV) on adrenocortical reactivity and recovery during early childhood. The sample (n = 1102 mother–infant dyads; 49.2% male) was racially diverse and from predominantly low-income, rural communities. To measure IPV exposure mothers completed the Conflicts Tactics Scale, and her caretaking behaviors were observed when her child was approximately 7, 15, and 24 months of age. Children's saliva samples, later assayed for cortisol, were collected around challenge tasks designed to elicit emotional reactivity. IPV was related to a trajectory of increased cortisol reactivity from infancy to toddlerhood. By contrast, the trajectory for non-IPV-exposed children decreased in cortisol reactivity across 7 to 24 months of age. At the 24-month assessment, on average, toddlers did not exhibit a cortisol reaction; however, those exposed to high levels of violence continued to have reactivity. Accumulative levels of IPV across the first 2 years of life predicted cortisol reactivity at 24 months of age. Early (7-month) sensitive maternal behavior moderated this relationship, so that only children exposed to both early insensitivity and high accumulated IPV exhibited increased reactivity at the 24-month assessment. Findings are discussed in relation to the risky family framework. En ligne : http://dx.doi.org/10.1017/S0954579411000010 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=121

---

1 (1 - 4 / 4) Par page : 25 50 100 200