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Functional brain plasticity following childhood maltreatment: A longitudinal fMRI investigation of autobiographical memory processing / V. B. PUETZ in Development and Psychopathology, 35-3 (August 2023)
[article]
Titre : Functional brain plasticity following childhood maltreatment: A longitudinal fMRI investigation of autobiographical memory processing Type de document : Texte imprimé et/ou numérique Auteurs : V. B. PUETZ, Auteur ; E. VIDING, Auteur ; E. A. MAGUIRE, Auteur ; A. MECHELLI, Auteur ; D. ARMBRUSTER-GENÇ, Auteur ; M. SHARP, Auteur ; G. RANKIN, Auteur ; M. I. GERIN, Auteur ; E. J. MCCRORY, Auteur Article en page(s) : p.1382-1389 Langues : Anglais (eng) Mots-clés : autobiographical memory brain plasticity childhood maltreatment fMRI longitudinal study Index. décimale : PER Périodiques Résumé : Altered autobiographical memory (ABM) processing characterizes some individuals with experiences of childhood maltreatment. This fMRI study of ABM processing evaluated potential developmental plasticity in neural functioning following maltreatment. Adolescents with (N = 19; MT group) and without (N = 18; Non-MT group) documented childhood maltreatment recalled specific ABMs in response to emotionally valenced cue words during fMRI at baseline (age 12.71 + 1.48) and follow-up (14.88 + 1.53 years). Psychological assessments were collected at both timepoints. Longitudinal analyses were carried out with BOLD signal changes during ABM recall and psychopathology to investigate change over time. In both groups there was relative stability of the ABM brain network, with some developmental maturational changes observed in cortical midline structures (ventromedial PFC (vmPFC), posterior cingulate cortex (pCC), and retrosplenial cortex (rSC). Significantly increased activation of the right rSC was observed only in the MT group, which was associated with improved psychological functioning. Baseline group differences in relation to hippocampal functioning, were not detected at follow-up. This study provides preliminary empirical evidence of functional developmental plasticity in children with documented maltreatment experience using fMRI. This suggests that altered patterns of brain function, associated with maltreatment experience, are not fixed and may reflect the potential to track a neural basis of resilience. En ligne : http://dx.doi.org/10.1017/S0954579421001292 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=511
in Development and Psychopathology > 35-3 (August 2023) . - p.1382-1389[article] Functional brain plasticity following childhood maltreatment: A longitudinal fMRI investigation of autobiographical memory processing [Texte imprimé et/ou numérique] / V. B. PUETZ, Auteur ; E. VIDING, Auteur ; E. A. MAGUIRE, Auteur ; A. MECHELLI, Auteur ; D. ARMBRUSTER-GENÇ, Auteur ; M. SHARP, Auteur ; G. RANKIN, Auteur ; M. I. GERIN, Auteur ; E. J. MCCRORY, Auteur . - p.1382-1389.
Langues : Anglais (eng)
in Development and Psychopathology > 35-3 (August 2023) . - p.1382-1389
Mots-clés : autobiographical memory brain plasticity childhood maltreatment fMRI longitudinal study Index. décimale : PER Périodiques Résumé : Altered autobiographical memory (ABM) processing characterizes some individuals with experiences of childhood maltreatment. This fMRI study of ABM processing evaluated potential developmental plasticity in neural functioning following maltreatment. Adolescents with (N = 19; MT group) and without (N = 18; Non-MT group) documented childhood maltreatment recalled specific ABMs in response to emotionally valenced cue words during fMRI at baseline (age 12.71 + 1.48) and follow-up (14.88 + 1.53 years). Psychological assessments were collected at both timepoints. Longitudinal analyses were carried out with BOLD signal changes during ABM recall and psychopathology to investigate change over time. In both groups there was relative stability of the ABM brain network, with some developmental maturational changes observed in cortical midline structures (ventromedial PFC (vmPFC), posterior cingulate cortex (pCC), and retrosplenial cortex (rSC). Significantly increased activation of the right rSC was observed only in the MT group, which was associated with improved psychological functioning. Baseline group differences in relation to hippocampal functioning, were not detected at follow-up. This study provides preliminary empirical evidence of functional developmental plasticity in children with documented maltreatment experience using fMRI. This suggests that altered patterns of brain function, associated with maltreatment experience, are not fixed and may reflect the potential to track a neural basis of resilience. En ligne : http://dx.doi.org/10.1017/S0954579421001292 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=511 Why and how does early adversity influence development? Toward an integrated model of dimensions of environmental experience / Bruce J. ELLIS in Development and Psychopathology, 34-2 (May 2022)
[article]
Titre : Why and how does early adversity influence development? Toward an integrated model of dimensions of environmental experience Type de document : Texte imprimé et/ou numérique Auteurs : Bruce J. ELLIS, Auteur ; Margaret A. SHERIDAN, Auteur ; Jay BELSKY, Auteur ; Katie A. MCLAUGHLIN, Auteur Article en page(s) : 447-471 Langues : Anglais (eng) Mots-clés : adversity dimensions brain plasticity developmental plasticity early adversity life history theory Index. décimale : PER Périodiques Résumé : Two extant frameworks ? the harshness-unpredictability model and the threat-deprivation model ? attempt to explain which dimensions of adversity have distinct influences on development. These models address, respectively, why, based on a history of natural selection, development operates the way it does across a range of environmental contexts, and how the neural mechanisms that underlie plasticity and learning in response to environmental experiences influence brain development. Building on these frameworks, we advance an integrated model of dimensions of environmental experience, focusing on threat-based forms of harshness, deprivation-based forms of harshness, and environmental unpredictability. This integrated model makes clear that the why and the how of development are inextricable and, together, essential to understanding which dimensions of the environment matter. Core integrative concepts include the directedness of learning, multiple levels of developmental adaptation to the environment, and tradeoffs between adaptive and maladaptive developmental responses to adversity. The integrated model proposes that proximal and distal cues to threat-based and deprivation-based forms of harshness, as well as unpredictability in those cues, calibrate development to both immediate rearing environments and broader ecological contexts, current and future. We highlight actionable directions for research needed to investigate the integrated model and advance understanding of dimensions of environmental experience. En ligne : http://dx.doi.org/10.1017/s0954579421001838 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=474
in Development and Psychopathology > 34-2 (May 2022) . - 447-471[article] Why and how does early adversity influence development? Toward an integrated model of dimensions of environmental experience [Texte imprimé et/ou numérique] / Bruce J. ELLIS, Auteur ; Margaret A. SHERIDAN, Auteur ; Jay BELSKY, Auteur ; Katie A. MCLAUGHLIN, Auteur . - 447-471.
Langues : Anglais (eng)
in Development and Psychopathology > 34-2 (May 2022) . - 447-471
Mots-clés : adversity dimensions brain plasticity developmental plasticity early adversity life history theory Index. décimale : PER Périodiques Résumé : Two extant frameworks ? the harshness-unpredictability model and the threat-deprivation model ? attempt to explain which dimensions of adversity have distinct influences on development. These models address, respectively, why, based on a history of natural selection, development operates the way it does across a range of environmental contexts, and how the neural mechanisms that underlie plasticity and learning in response to environmental experiences influence brain development. Building on these frameworks, we advance an integrated model of dimensions of environmental experience, focusing on threat-based forms of harshness, deprivation-based forms of harshness, and environmental unpredictability. This integrated model makes clear that the why and the how of development are inextricable and, together, essential to understanding which dimensions of the environment matter. Core integrative concepts include the directedness of learning, multiple levels of developmental adaptation to the environment, and tradeoffs between adaptive and maladaptive developmental responses to adversity. The integrated model proposes that proximal and distal cues to threat-based and deprivation-based forms of harshness, as well as unpredictability in those cues, calibrate development to both immediate rearing environments and broader ecological contexts, current and future. We highlight actionable directions for research needed to investigate the integrated model and advance understanding of dimensions of environmental experience. En ligne : http://dx.doi.org/10.1017/s0954579421001838 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=474