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)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 57-10 (October 2016) . - p.1154-1164 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 [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

Parsing neurodevelopmental features of irritability and anxiety: Replication and validation of a latent variable approach / Elise M. CARDINALE in Development and Psychopathology, 31-3 (August 2019)  

Public ISBD [article]  inDevelopment and Psychopathology > 31-3 (August 2019) . - p.917-929 Titre : Parsing neurodevelopmental features of irritability and anxiety: Replication and validation of a latent variable approach Type de document : Texte imprimé et/ou numérique Auteurs : Elise M. CARDINALE, Auteur ; Katharina KIRCANSKI, Auteur ; Julia BROOKS, Auteur ; Andrea L. GOLD, Auteur ; Kenneth E. TOWBIN, Auteur ; Daniel S. PINE, Auteur ; Ellen LEIBENLUFT, Auteur ; Melissa A. BROTMAN, Auteur Article en page(s) : p.917-929 Langues : Anglais (eng) Mots-clés : anxiety  bifactor model  cortical structure  irritability  subcortical volume Index. décimale : PER Périodiques Résumé : Irritability and anxiety are two common clinical phenotypes that involve high-arousal negative affect states (anger and fear), and that frequently co-occur. Elucidating how these two forms of emotion dysregulation relate to perturbed neurodevelopment may benefit from alternate phenotyping strategies. One such strategy applies a bifactor latent variable approach that can parse shared versus unique mechanisms of these two phenotypes. Here, we aim to replicate and extend this approach and examine associations with neural structure in a large transdiagnostic sample of youth (N = 331; M = 13.57, SD = 2.69 years old; 45.92% male). FreeSurfer was used to extract cortical thickness, cortical surface area, and subcortical volume. The current findings replicated the bifactor model and demonstrate measurement invariance as a function of youth age and sex. There were no associations of youth's factor scores with cortical thickness, surface area, or subcortical volume. However, we found strong convergent and divergent validity between parent-reported irritability and anxiety factors with clinician-rated symptoms and impairment. A general negative affectivity factor was robustly associated with overall functional impairment across symptom domains. Together, these results support the utility of the bifactor model as an alternative phenotyping strategy for irritability and anxiety, which may aid in the development of targeted treatments. En ligne : http://dx.doi.org/10.1017/S095457941900035X Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=403 [article] Parsing neurodevelopmental features of irritability and anxiety: Replication and validation of a latent variable approach [Texte imprimé et/ou numérique] / Elise M. CARDINALE, Auteur ; Katharina KIRCANSKI, Auteur ; Julia BROOKS, Auteur ; Andrea L. GOLD, Auteur ; Kenneth E. TOWBIN, Auteur ; Daniel S. PINE, Auteur ; Ellen LEIBENLUFT, Auteur ; Melissa A. BROTMAN, Auteur . - p.917-929. Langues : Anglais (eng) in Development and Psychopathology > 31-3 (August 2019) . - p.917-929 Mots-clés : anxiety  bifactor model  cortical structure  irritability  subcortical volume Index. décimale : PER Périodiques Résumé : Irritability and anxiety are two common clinical phenotypes that involve high-arousal negative affect states (anger and fear), and that frequently co-occur. Elucidating how these two forms of emotion dysregulation relate to perturbed neurodevelopment may benefit from alternate phenotyping strategies. One such strategy applies a bifactor latent variable approach that can parse shared versus unique mechanisms of these two phenotypes. Here, we aim to replicate and extend this approach and examine associations with neural structure in a large transdiagnostic sample of youth (N = 331; M = 13.57, SD = 2.69 years old; 45.92% male). FreeSurfer was used to extract cortical thickness, cortical surface area, and subcortical volume. The current findings replicated the bifactor model and demonstrate measurement invariance as a function of youth age and sex. There were no associations of youth's factor scores with cortical thickness, surface area, or subcortical volume. However, we found strong convergent and divergent validity between parent-reported irritability and anxiety factors with clinician-rated symptoms and impairment. A general negative affectivity factor was robustly associated with overall functional impairment across symptom domains. Together, these results support the utility of the bifactor model as an alternative phenotyping strategy for irritability and anxiety, which may aid in the development of targeted treatments. En ligne : http://dx.doi.org/10.1017/S095457941900035X Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=403

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