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Auteur Matthew PEVERILL |
Documents disponibles écrits par cet auteur (2)
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Childhood abuse and reduced cortical thickness in brain regions involved in emotional processing / Andrea L. GOLD in Journal of Child Psychology and Psychiatry, 57-10 (October 2016)
[article]
Titre : Childhood abuse and reduced cortical thickness in brain regions involved in emotional processing Type de document : Texte imprimé et/ou numérique Auteurs : Andrea L. GOLD, Auteur ; Margaret A. SHERIDAN, Auteur ; Matthew PEVERILL, Auteur ; Daniel S. BUSSO, Auteur ; Hilary K. LAMBERT, Auteur ; Sonia ALVES, Auteur ; Daniel S. PINE, Auteur ; Katie A. MCLAUGHLIN, Auteur Article en page(s) : p.1154-1164 Langues : Anglais (eng) Mots-clés : Abuse childhood adversity ventromedial prefrontal cortex temporal cortex cortical thickness Index. décimale : PER Périodiques Résumé : Background Alterations in gray matter development represent a potential pathway through which childhood abuse is associated with psychopathology. Several prior studies find reduced volume and thickness of prefrontal (PFC) and temporal cortex regions in abused compared with nonabused adolescents, although most prior research is based on adults and volume-based measures. This study tests the hypothesis that child abuse, independent of parental education, predicts reduced cortical thickness in prefrontal and temporal cortices as well as reduced gray mater volume (GMV) in subcortical regions during adolescence. Methods Structural MRI scans were obtained from 21 adolescents exposed to physical and/or sexual abuse and 37 nonabused adolescents (ages 13–20). Abuse was operationalized using dichotomous and continuous measures. We examined associations between abuse and brain structure in several a priori-defined regions, controlling for parental education, age, sex, race, and total brain volume for subcortical GMV. Significance was evaluated at p < .05 with a false discovery rate correction. Results Child abuse exposure and severity were associated with reduced thickness in ventromedial prefrontal cortex (PFC), right lateral orbitofrontal cortex, right inferior frontal gyrus, bilateral parahippocampal gyrus (PHG), left temporal pole, and bilateral inferior, right middle, and right superior temporal gyri. Neither abuse measure predicted cortical surface area or subcortical GMV. Bilateral PHG thickness was inversely related to externalizing symptoms. Conclusions Child abuse, an experience characterized by a high degree of threat, is associated with reduced cortical thickness in ventromedial and ventrolateral PFC and medial and lateral temporal cortex in adolescence. Reduced PHG thickness may be a mediator linking abuse with externalizing psychopathology, although prospective research is needed to evaluate this possibility. En ligne : http://dx.doi.org/10.1111/jcpp.12630 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=295
in Journal of Child Psychology and Psychiatry > 57-10 (October 2016) . - p.1154-1164[article] Childhood abuse and reduced cortical thickness in brain regions involved in emotional processing [Texte imprimé et/ou numérique] / Andrea L. GOLD, Auteur ; Margaret A. SHERIDAN, Auteur ; Matthew PEVERILL, Auteur ; Daniel S. BUSSO, Auteur ; Hilary K. LAMBERT, Auteur ; Sonia ALVES, Auteur ; Daniel S. PINE, Auteur ; Katie A. MCLAUGHLIN, Auteur . - p.1154-1164.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 57-10 (October 2016) . - p.1154-1164
Mots-clés : Abuse childhood adversity ventromedial prefrontal cortex temporal cortex cortical thickness Index. décimale : PER Périodiques Résumé : Background Alterations in gray matter development represent a potential pathway through which childhood abuse is associated with psychopathology. Several prior studies find reduced volume and thickness of prefrontal (PFC) and temporal cortex regions in abused compared with nonabused adolescents, although most prior research is based on adults and volume-based measures. This study tests the hypothesis that child abuse, independent of parental education, predicts reduced cortical thickness in prefrontal and temporal cortices as well as reduced gray mater volume (GMV) in subcortical regions during adolescence. Methods Structural MRI scans were obtained from 21 adolescents exposed to physical and/or sexual abuse and 37 nonabused adolescents (ages 13–20). Abuse was operationalized using dichotomous and continuous measures. We examined associations between abuse and brain structure in several a priori-defined regions, controlling for parental education, age, sex, race, and total brain volume for subcortical GMV. Significance was evaluated at p < .05 with a false discovery rate correction. Results Child abuse exposure and severity were associated with reduced thickness in ventromedial prefrontal cortex (PFC), right lateral orbitofrontal cortex, right inferior frontal gyrus, bilateral parahippocampal gyrus (PHG), left temporal pole, and bilateral inferior, right middle, and right superior temporal gyri. Neither abuse measure predicted cortical surface area or subcortical GMV. Bilateral PHG thickness was inversely related to externalizing symptoms. Conclusions Child abuse, an experience characterized by a high degree of threat, is associated with reduced cortical thickness in ventromedial and ventrolateral PFC and medial and lateral temporal cortex in adolescence. Reduced PHG thickness may be a mediator linking abuse with externalizing psychopathology, although prospective research is needed to evaluate this possibility. En ligne : http://dx.doi.org/10.1111/jcpp.12630 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=295 Dimensions of childhood adversity have distinct associations with neural systems underlying executive functioning / Margaret A. SHERIDAN in Development and Psychopathology, 29-5 (December 2017)
[article]
Titre : Dimensions of childhood adversity have distinct associations with neural systems underlying executive functioning Type de document : Texte imprimé et/ou numérique Auteurs : Margaret A. SHERIDAN, Auteur ; Matthew PEVERILL, Auteur ; Amy S. FINN, Auteur ; Katie A. MCLAUGHLIN, Auteur Article en page(s) : p.1777-1794 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Childhood adversity is associated with increased risk for psychopathology. Neurodevelopmental pathways underlying this risk remain poorly understood. A recent conceptual model posits that childhood adversity can be deconstructed into at least two underlying dimensions, deprivation and threat, that are associated with distinct neurocognitive consequences. This model argues that deprivation (i.e., a lack of cognitive stimulation and learning opportunities) is associated with poor executive function (EF), whereas threat is not. We examine this hypothesis in two studies measuring EF at multiple levels: performance on EF tasks, neural recruitment during EF, and problems with EF in daily life. In Study 1, deprivation (low parental education and child neglect) was associated with greater parent-reported problems with EF in adolescents (N = 169; 13–17 years) after adjustment for levels of threat (community violence and abuse), which were unrelated to EF. In Study 2, low parental education was associated with poor working memory (WM) performance and inefficient neural recruitment in the parietal and prefrontal cortex during high WM load among adolescents (N = 51, 13–20 years) after adjusting for abuse, which was unrelated to WM task performance and neural recruitment during WM. These findings constitute strong preliminary evidence for a novel model of the neurodevelopmental consequences of childhood adversity. En ligne : http://dx.doi.org/10.1017/S0954579417001390 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=323
in Development and Psychopathology > 29-5 (December 2017) . - p.1777-1794[article] Dimensions of childhood adversity have distinct associations with neural systems underlying executive functioning [Texte imprimé et/ou numérique] / Margaret A. SHERIDAN, Auteur ; Matthew PEVERILL, Auteur ; Amy S. FINN, Auteur ; Katie A. MCLAUGHLIN, Auteur . - p.1777-1794.
Langues : Anglais (eng)
in Development and Psychopathology > 29-5 (December 2017) . - p.1777-1794
Index. décimale : PER Périodiques Résumé : Childhood adversity is associated with increased risk for psychopathology. Neurodevelopmental pathways underlying this risk remain poorly understood. A recent conceptual model posits that childhood adversity can be deconstructed into at least two underlying dimensions, deprivation and threat, that are associated with distinct neurocognitive consequences. This model argues that deprivation (i.e., a lack of cognitive stimulation and learning opportunities) is associated with poor executive function (EF), whereas threat is not. We examine this hypothesis in two studies measuring EF at multiple levels: performance on EF tasks, neural recruitment during EF, and problems with EF in daily life. In Study 1, deprivation (low parental education and child neglect) was associated with greater parent-reported problems with EF in adolescents (N = 169; 13–17 years) after adjustment for levels of threat (community violence and abuse), which were unrelated to EF. In Study 2, low parental education was associated with poor working memory (WM) performance and inefficient neural recruitment in the parietal and prefrontal cortex during high WM load among adolescents (N = 51, 13–20 years) after adjusting for abuse, which was unrelated to WM task performance and neural recruitment during WM. These findings constitute strong preliminary evidence for a novel model of the neurodevelopmental consequences of childhood adversity. En ligne : http://dx.doi.org/10.1017/S0954579417001390 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=323