Atypical action updating in a dynamic environment associated with adolescent obsessive-compulsive disorder / Aleya A. MARZUKI in Journal of Child Psychology and Psychiatry, 63-12 (December 2022)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 63-12 (December 2022) . - p.1591-1601 Titre : Atypical action updating in a dynamic environment associated with adolescent obsessive-compulsive disorder Type de document : Texte imprimé et/ou numérique Auteurs : Aleya A. MARZUKI, Auteur ; Matilde M. VAGHI, Auteur ; Anna CONWAY-MORRIS, Auteur ; Muzaffer KASER, Auteur ; Akeem SULE, Auteur ; Annemieke APERGIS-SCHOUTE, Auteur ; Barbara J. SAHAKIAN, Auteur ; Trevor W. ROBBINS, Auteur Article en page(s) : p.1591-1601 Langues : Anglais (eng) Mots-clés : Adult  Humans  Adolescent  Child  Bayes Theorem  Obsessive-Compulsive Disorder/epidemiology  Compulsive Behavior  Decision Making/physiology  Learning  Obsessive-compulsive disorder  adolescence  cognition Index. décimale : PER Périodiques Résumé : BACKGROUND: Computational research had determined that adults with obsessive-compulsive disorder (OCD) display heightened action updating in response to noise in the environment and neglect metacognitive information (such as confidence) when making decisions. These features are proposed to underlie patients' compulsions despite the knowledge they are irrational. Nonetheless, it is unclear whether this extends to adolescents with OCD as research in this population is lacking. Thus, this study aimed to investigate the interplay between action and confidence in adolescents with OCD. METHODS: Twenty-seven adolescents with OCD and 46 controls completed a predictive-inference task, designed to probe how subjects' actions and confidence ratings fluctuate in response to unexpected outcomes. We investigated how subjects update actions in response to prediction errors (indexing mismatches between expectations and outcomes) and used parameters from a Bayesian model to predict how confidence and action evolve over time. Confidence-action association strength was assessed using a regression model. We also investigated the effects of serotonergic medication. RESULTS: Adolescents with OCD showed significantly increased learning rates, particularly following small prediction errors. Results were driven primarily by unmedicated patients. Confidence ratings appeared equivalent between groups, although model-based analysis revealed that patients' confidence was less affected by prediction errors compared to controls. Patients and controls did not differ in the extent to which they updated actions and confidence in tandem. CONCLUSIONS: Adolescents with OCD showed enhanced action adjustments, especially in the face of small prediction errors, consistent with previous research establishing 'just-right' compulsions, enhanced error-related negativity, and greater decision uncertainty in paediatric-OCD. These tendencies were ameliorated in patients receiving serotonergic medication, emphasising the importance of early intervention in preventing disorder-related cognitive deficits. Confidence ratings were equivalent between young patients and controls, mirroring findings in adult OCD research. En ligne : http://dx.doi.org/10.1111/jcpp.13628 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=490 [article] Atypical action updating in a dynamic environment associated with adolescent obsessive-compulsive disorder [Texte imprimé et/ou numérique] / Aleya A. MARZUKI, Auteur ; Matilde M. VAGHI, Auteur ; Anna CONWAY-MORRIS, Auteur ; Muzaffer KASER, Auteur ; Akeem SULE, Auteur ; Annemieke APERGIS-SCHOUTE, Auteur ; Barbara J. SAHAKIAN, Auteur ; Trevor W. ROBBINS, Auteur . - p.1591-1601. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 63-12 (December 2022) . - p.1591-1601 Mots-clés : Adult  Humans  Adolescent  Child  Bayes Theorem  Obsessive-Compulsive Disorder/epidemiology  Compulsive Behavior  Decision Making/physiology  Learning  Obsessive-compulsive disorder  adolescence  cognition Index. décimale : PER Périodiques Résumé : BACKGROUND: Computational research had determined that adults with obsessive-compulsive disorder (OCD) display heightened action updating in response to noise in the environment and neglect metacognitive information (such as confidence) when making decisions. These features are proposed to underlie patients' compulsions despite the knowledge they are irrational. Nonetheless, it is unclear whether this extends to adolescents with OCD as research in this population is lacking. Thus, this study aimed to investigate the interplay between action and confidence in adolescents with OCD. METHODS: Twenty-seven adolescents with OCD and 46 controls completed a predictive-inference task, designed to probe how subjects' actions and confidence ratings fluctuate in response to unexpected outcomes. We investigated how subjects update actions in response to prediction errors (indexing mismatches between expectations and outcomes) and used parameters from a Bayesian model to predict how confidence and action evolve over time. Confidence-action association strength was assessed using a regression model. We also investigated the effects of serotonergic medication. RESULTS: Adolescents with OCD showed significantly increased learning rates, particularly following small prediction errors. Results were driven primarily by unmedicated patients. Confidence ratings appeared equivalent between groups, although model-based analysis revealed that patients' confidence was less affected by prediction errors compared to controls. Patients and controls did not differ in the extent to which they updated actions and confidence in tandem. CONCLUSIONS: Adolescents with OCD showed enhanced action adjustments, especially in the face of small prediction errors, consistent with previous research establishing 'just-right' compulsions, enhanced error-related negativity, and greater decision uncertainty in paediatric-OCD. These tendencies were ameliorated in patients receiving serotonergic medication, emphasising the importance of early intervention in preventing disorder-related cognitive deficits. Confidence ratings were equivalent between young patients and controls, mirroring findings in adult OCD research. En ligne : http://dx.doi.org/10.1111/jcpp.13628 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=490

Structural brain correlates of adolescent resilience / Keith B. BURT in Journal of Child Psychology and Psychiatry, 57-11 (November 2016)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 57-11 (November 2016) . - p.1287-1296 Titre : Structural brain correlates of adolescent resilience Type de document : Texte imprimé et/ou numérique Auteurs : Keith B. BURT, Auteur ; Robert WHELAN, Auteur ; Patricia J. CONROD, Auteur ; Tobias BANASCHEWSKI, Auteur ; Gareth J. BARKER, Auteur ; Arun L. W. BOKDE, Auteur ; Uli BROMBERG, Auteur ; Christian BÜCHEL, Auteur ; Mira FAUTH-BÜHLER, Auteur ; Herta FLOR, Auteur ; André GALINOWSKI, Auteur ; Juergen GALLINAT, Auteur ; Penny GOWLAND, Auteur ; Andreas HEINZ, Auteur ; Bernd ITTERMANN, Auteur ; Karl MANN, Auteur ; Frauke NEES, Auteur ; Dimitrios PAPADOPOULOS, Auteur ; Tomas PAUS, Auteur ; Zdenka PAUSOVA, Auteur ; Luise POUSTKA, Auteur ; Marcella RIETSCHEL, Auteur ; Trevor W. ROBBINS, Auteur ; Michael N. SMOLKA, Auteur ; Andreas STRÖHLE, Auteur ; Gunter SCHUMANN, Auteur ; Hugh GARAVAN, Auteur ; Imagen Consortium THE, Auteur Article en page(s) : p.1287-1296 Langues : Anglais (eng) Mots-clés : Imaging  resilience  adolescence  competence  adversity  IMAGEN study Index. décimale : PER Périodiques Résumé : Background Despite calls for integration of neurobiological methods into research on youth resilience (high competence despite high adversity), we know little about structural brain correlates of resilient functioning. The aim of the current study was to test for brain regions uniquely associated with positive functioning in the context of adversity, using detailed phenotypic classification. Methods 1,870 European adolescents (Mage = 14.56 years, SDage = 0.44 years, 51.5% female) underwent MRI scanning and completed behavioral and psychological measures of stressful life events, academic competence, social competence, rule-abiding conduct, personality, and alcohol use. Results The interaction of competence and adversity identified two regions centered on the right middle and superior frontal gyri; grey matter volumes in these regions were larger in adolescents experiencing adversity who showed positive adaptation. Differences in these regions among competence/adversity subgroups were maintained after controlling for several covariates and were robust to alternative operationalization decisions for key constructs. Conclusions We demonstrate structural brain correlates of adolescent resilience, and suggest that right prefrontal structures are implicated in adaptive functioning for youth who have experienced adversity. En ligne : http://dx.doi.org/10.1111/jcpp.12552 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=295 [article] Structural brain correlates of adolescent resilience [Texte imprimé et/ou numérique] / Keith B. BURT, Auteur ; Robert WHELAN, Auteur ; Patricia J. CONROD, Auteur ; Tobias BANASCHEWSKI, Auteur ; Gareth J. BARKER, Auteur ; Arun L. W. BOKDE, Auteur ; Uli BROMBERG, Auteur ; Christian BÜCHEL, Auteur ; Mira FAUTH-BÜHLER, Auteur ; Herta FLOR, Auteur ; André GALINOWSKI, Auteur ; Juergen GALLINAT, Auteur ; Penny GOWLAND, Auteur ; Andreas HEINZ, Auteur ; Bernd ITTERMANN, Auteur ; Karl MANN, Auteur ; Frauke NEES, Auteur ; Dimitrios PAPADOPOULOS, Auteur ; Tomas PAUS, Auteur ; Zdenka PAUSOVA, Auteur ; Luise POUSTKA, Auteur ; Marcella RIETSCHEL, Auteur ; Trevor W. ROBBINS, Auteur ; Michael N. SMOLKA, Auteur ; Andreas STRÖHLE, Auteur ; Gunter SCHUMANN, Auteur ; Hugh GARAVAN, Auteur ; Imagen Consortium THE, Auteur . - p.1287-1296. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 57-11 (November 2016) . - p.1287-1296 Mots-clés : Imaging  resilience  adolescence  competence  adversity  IMAGEN study Index. décimale : PER Périodiques Résumé : Background Despite calls for integration of neurobiological methods into research on youth resilience (high competence despite high adversity), we know little about structural brain correlates of resilient functioning. The aim of the current study was to test for brain regions uniquely associated with positive functioning in the context of adversity, using detailed phenotypic classification. Methods 1,870 European adolescents (Mage = 14.56 years, SDage = 0.44 years, 51.5% female) underwent MRI scanning and completed behavioral and psychological measures of stressful life events, academic competence, social competence, rule-abiding conduct, personality, and alcohol use. Results The interaction of competence and adversity identified two regions centered on the right middle and superior frontal gyri; grey matter volumes in these regions were larger in adolescents experiencing adversity who showed positive adaptation. Differences in these regions among competence/adversity subgroups were maintained after controlling for several covariates and were robust to alternative operationalization decisions for key constructs. Conclusions We demonstrate structural brain correlates of adolescent resilience, and suggest that right prefrontal structures are implicated in adaptive functioning for youth who have experienced adversity. En ligne : http://dx.doi.org/10.1111/jcpp.12552 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=295

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