Childhood maltreatment moderates the effect of combat exposure on cingulum structural integrity / Layla BANIHASHEMI in Development and Psychopathology, 29-5 (December 2017)  

Public ISBD [article]  inDevelopment and Psychopathology > 29-5 (December 2017) . - p.1735-1747 Titre : Childhood maltreatment moderates the effect of combat exposure on cingulum structural integrity Type de document : Texte imprimé et/ou numérique Auteurs : Layla BANIHASHEMI, Auteur ; Meredith L. WALLACE, Auteur ; Lei K. SHEU, Auteur ; Michael C. LEE, Auteur ; Peter J. GIANAROS, Auteur ; Robert P. MACKENZIE, Auteur ; Salvatore P. INSANA, Auteur ; Anne GERMAIN, Auteur ; Ryan J. HERRINGA, Auteur Article en page(s) : p.1735-1747 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Limbic white matter pathways link emotion, cognition, and behavior and are potentially malleable to the influences of traumatic events throughout development. However, the impact of interactions between childhood and later life trauma on limbic white matter pathways has yet to be examined. Here, we examined whether childhood maltreatment moderated the effect of combat exposure on diffusion tensor imaging measures within a sample of military veterans (N = 28). We examined five limbic tracts of interest: two components of the cingulum (cingulum, cingulate gyrus, and cingulum hippocampus [CGH]), the uncinate fasciculus, the fornix/stria terminalis, and the anterior limb of the internal capsule. Using effect sizes, clinically meaningful moderator effects were found only within the CGH. Greater combat exposure was associated with decreased CGH fractional anisotropy (overall structural integrity) and increased CGH radial diffusivity (perpendicular water diffusivity) among individuals with more severe childhood maltreatment. Our findings provide preliminary evidence of the moderating effect of childhood maltreatment on the relationship between combat exposure and CGH structural integrity. These differences in CGH structural integrity could have maladaptive implications for emotion and memory, as well as provide a potential mechanism by which childhood maltreatment induces vulnerability to later life trauma exposure. En ligne : http://dx.doi.org/10.1017/S0954579417001365 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=323 [article] Childhood maltreatment moderates the effect of combat exposure on cingulum structural integrity [Texte imprimé et/ou numérique] / Layla BANIHASHEMI, Auteur ; Meredith L. WALLACE, Auteur ; Lei K. SHEU, Auteur ; Michael C. LEE, Auteur ; Peter J. GIANAROS, Auteur ; Robert P. MACKENZIE, Auteur ; Salvatore P. INSANA, Auteur ; Anne GERMAIN, Auteur ; Ryan J. HERRINGA, Auteur . - p.1735-1747. Langues : Anglais (eng) in Development and Psychopathology > 29-5 (December 2017) . - p.1735-1747 Index. décimale : PER Périodiques Résumé : Limbic white matter pathways link emotion, cognition, and behavior and are potentially malleable to the influences of traumatic events throughout development. However, the impact of interactions between childhood and later life trauma on limbic white matter pathways has yet to be examined. Here, we examined whether childhood maltreatment moderated the effect of combat exposure on diffusion tensor imaging measures within a sample of military veterans (N = 28). We examined five limbic tracts of interest: two components of the cingulum (cingulum, cingulate gyrus, and cingulum hippocampus [CGH]), the uncinate fasciculus, the fornix/stria terminalis, and the anterior limb of the internal capsule. Using effect sizes, clinically meaningful moderator effects were found only within the CGH. Greater combat exposure was associated with decreased CGH fractional anisotropy (overall structural integrity) and increased CGH radial diffusivity (perpendicular water diffusivity) among individuals with more severe childhood maltreatment. Our findings provide preliminary evidence of the moderating effect of childhood maltreatment on the relationship between combat exposure and CGH structural integrity. These differences in CGH structural integrity could have maladaptive implications for emotion and memory, as well as provide a potential mechanism by which childhood maltreatment induces vulnerability to later life trauma exposure. En ligne : http://dx.doi.org/10.1017/S0954579417001365 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=323

Maternal depression in childhood and aggression in young adulthood: evidence for mediation by offspring amygdala–hippocampal volume ratio / Mary GILLIAM in Journal of Child Psychology and Psychiatry, 56-10 (October 2015)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 56-10 (October 2015) . - p.1083-1091 Titre : Maternal depression in childhood and aggression in young adulthood: evidence for mediation by offspring amygdala–hippocampal volume ratio Type de document : Texte imprimé et/ou numérique Auteurs : Mary GILLIAM, Auteur ; Erika E. FORBES, Auteur ; Peter J. GIANAROS, Auteur ; Kirk I. ERICKSON, Auteur ; Lauretta M. BRENNAN, Auteur ; Daniel S. SHAW, Auteur Article en page(s) : p.1083-1091 Langues : Anglais (eng) Mots-clés : Maternal depression  aggression  brain imaging  longitudinal studies Index. décimale : PER Périodiques Résumé : Background There is abundant evidence that offspring of depressed mothers are at increased risk for persistent behavior problems related to emotion regulation, but the mechanisms by which offspring incur this risk are not entirely clear. Early adverse caregiving experiences have been associated with structural alterations in the amygdala and hippocampus, which parallel findings of cortical regions altered in adults with behavior problems related to emotion regulation. This study examined whether exposure to maternal depression during childhood might predict increased aggression and/or depression in early adulthood, and whether offspring amygdala:hippocampal volume ratio might mediate this relationship. Methods Participants were 258 mothers and sons at socioeconomic risk for behavior problems. Sons' trajectories of exposure to maternal depression were generated from eight reports collected prospectively from offspring ages 18 months to 10 years. Offspring brain structure, aggression, and depression were assessed at age 20 (n = 170). Results Persistent, moderately high trajectories of maternal depression during childhood predicted increased aggression in adult offspring. In contrast, stable and very elevated trajectories of maternal depression during childhood predicted depression in adult offspring. Increased amygdala: hippocampal volume ratios at age 20 were significantly associated with concurrently increased aggression, but not depression, in adult offspring. Offspring amygdala: hippocampal volume ratio mediated the relationship found between trajectories of moderately elevated maternal depression during childhood and aggression in adult offspring. Conclusions Alterations in the relative size of brain structures implicated in emotion regulation may be one mechanism by which offspring of depressed mothers incur increased risk for the development of aggression. En ligne : http://dx.doi.org/10.1111/jcpp.12364 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=269 [article] Maternal depression in childhood and aggression in young adulthood: evidence for mediation by offspring amygdala–hippocampal volume ratio [Texte imprimé et/ou numérique] / Mary GILLIAM, Auteur ; Erika E. FORBES, Auteur ; Peter J. GIANAROS, Auteur ; Kirk I. ERICKSON, Auteur ; Lauretta M. BRENNAN, Auteur ; Daniel S. SHAW, Auteur . - p.1083-1091. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 56-10 (October 2015) . - p.1083-1091 Mots-clés : Maternal depression  aggression  brain imaging  longitudinal studies Index. décimale : PER Périodiques Résumé : Background There is abundant evidence that offspring of depressed mothers are at increased risk for persistent behavior problems related to emotion regulation, but the mechanisms by which offspring incur this risk are not entirely clear. Early adverse caregiving experiences have been associated with structural alterations in the amygdala and hippocampus, which parallel findings of cortical regions altered in adults with behavior problems related to emotion regulation. This study examined whether exposure to maternal depression during childhood might predict increased aggression and/or depression in early adulthood, and whether offspring amygdala:hippocampal volume ratio might mediate this relationship. Methods Participants were 258 mothers and sons at socioeconomic risk for behavior problems. Sons' trajectories of exposure to maternal depression were generated from eight reports collected prospectively from offspring ages 18 months to 10 years. Offspring brain structure, aggression, and depression were assessed at age 20 (n = 170). Results Persistent, moderately high trajectories of maternal depression during childhood predicted increased aggression in adult offspring. In contrast, stable and very elevated trajectories of maternal depression during childhood predicted depression in adult offspring. Increased amygdala: hippocampal volume ratios at age 20 were significantly associated with concurrently increased aggression, but not depression, in adult offspring. Offspring amygdala: hippocampal volume ratio mediated the relationship found between trajectories of moderately elevated maternal depression during childhood and aggression in adult offspring. Conclusions Alterations in the relative size of brain structures implicated in emotion regulation may be one mechanism by which offspring of depressed mothers incur increased risk for the development of aggression. En ligne : http://dx.doi.org/10.1111/jcpp.12364 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=269

---

1 (1 - 2 / 2)