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Auteur Saché M. COURY |
Documents disponibles écrits par cet auteur (1)
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Correlates and predictors of the severity of suicidal ideation in adolescence: an examination of brain connectomics and psychosocial characteristics / Jaclyn S. KIRSHENBAUM in Journal of Child Psychology and Psychiatry, 63-6 (June 2022)
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Titre : Correlates and predictors of the severity of suicidal ideation in adolescence: an examination of brain connectomics and psychosocial characteristics Type de document : Texte imprimé et/ou numérique Auteurs : Jaclyn S. KIRSHENBAUM, Auteur ; Rajpreet CHAHAL, Auteur ; Tiffany C. HO, Auteur ; Lucy S. KING, Auteur ; Anthony J. GIFUNI, Auteur ; Dana MASTROVITO, Auteur ; Saché M. COURY, Auteur ; Rachel L. WEISENBURGER, Auteur ; Ian H. GOTLIB, Auteur Article en page(s) : p.701-714 Langues : Anglais (eng) Mots-clés : Suicidal ideation adolescence graph theory internalizing and externalizing symptoms resting-state fMRI Index. décimale : PER Périodiques Résumé : BACKGROUND: Suicidal ideation (SI) typically emerges during adolescence but is challenging to predict. Given the potentially lethal consequences of SI, it is important to identify neurobiological and psychosocial variables explaining the severity of SI in adolescents. METHODS: In 106 participants (59 female) recruited from the community, we assessed psychosocial characteristics and obtained resting-state fMRI data in early adolescence (baseline: aged 9-13?years). Across 250 brain regions, we assessed local graph theory-based properties of interconnectedness: local efficiency, eigenvector centrality, nodal degree, within-module z-score, and participation coefficient. Four years later (follow-up: ages 13-19?years), participants self-reported their SI severity. We used least absolute shrinkage and selection operator (LASSO) regressions to identify a linear combination of psychosocial and brain-based variables that best explain the severity of SI symptoms at follow-up. Nested-cross-validation yielded model performance statistics for all LASSO models. RESULTS: A combination of psychosocial and brain-based variables explained subsequent severity of SI (R(2?) =?.55); the strongest was internalizing and externalizing symptom severity at follow-up. Follow-up LASSO regressions of psychosocial-only and brain-based-only variables indicated that psychosocial-only variables explained 55% of the variance in SI severity; in contrast, brain-based-only variables performed worse than the null model. CONCLUSIONS: A linear combination of baseline and follow-up psychosocial variables best explained the severity of SI. Follow-up analyses indicated that graph theory resting-state metrics did not increase the prediction of the severity of SI in adolescents. Attending to internalizing and externalizing symptoms is important in early adolescence; resting-state connectivity properties other than local graph theory metrics might yield a stronger prediction of the severity of SI. En ligne : http://dx.doi.org/10.1111/jcpp.13512 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=475
in Journal of Child Psychology and Psychiatry > 63-6 (June 2022) . - p.701-714[article] Correlates and predictors of the severity of suicidal ideation in adolescence: an examination of brain connectomics and psychosocial characteristics [Texte imprimé et/ou numérique] / Jaclyn S. KIRSHENBAUM, Auteur ; Rajpreet CHAHAL, Auteur ; Tiffany C. HO, Auteur ; Lucy S. KING, Auteur ; Anthony J. GIFUNI, Auteur ; Dana MASTROVITO, Auteur ; Saché M. COURY, Auteur ; Rachel L. WEISENBURGER, Auteur ; Ian H. GOTLIB, Auteur . - p.701-714.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 63-6 (June 2022) . - p.701-714
Mots-clés : Suicidal ideation adolescence graph theory internalizing and externalizing symptoms resting-state fMRI Index. décimale : PER Périodiques Résumé : BACKGROUND: Suicidal ideation (SI) typically emerges during adolescence but is challenging to predict. Given the potentially lethal consequences of SI, it is important to identify neurobiological and psychosocial variables explaining the severity of SI in adolescents. METHODS: In 106 participants (59 female) recruited from the community, we assessed psychosocial characteristics and obtained resting-state fMRI data in early adolescence (baseline: aged 9-13?years). Across 250 brain regions, we assessed local graph theory-based properties of interconnectedness: local efficiency, eigenvector centrality, nodal degree, within-module z-score, and participation coefficient. Four years later (follow-up: ages 13-19?years), participants self-reported their SI severity. We used least absolute shrinkage and selection operator (LASSO) regressions to identify a linear combination of psychosocial and brain-based variables that best explain the severity of SI symptoms at follow-up. Nested-cross-validation yielded model performance statistics for all LASSO models. RESULTS: A combination of psychosocial and brain-based variables explained subsequent severity of SI (R(2?) =?.55); the strongest was internalizing and externalizing symptom severity at follow-up. Follow-up LASSO regressions of psychosocial-only and brain-based-only variables indicated that psychosocial-only variables explained 55% of the variance in SI severity; in contrast, brain-based-only variables performed worse than the null model. CONCLUSIONS: A linear combination of baseline and follow-up psychosocial variables best explained the severity of SI. Follow-up analyses indicated that graph theory resting-state metrics did not increase the prediction of the severity of SI in adolescents. Attending to internalizing and externalizing symptoms is important in early adolescence; resting-state connectivity properties other than local graph theory metrics might yield a stronger prediction of the severity of SI. En ligne : http://dx.doi.org/10.1111/jcpp.13512 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=475