Facilitating derived requesting skills with a touchscreen tablet computer for children with autism spectrum disorder / Katharine STILL in Research in Autism Spectrum Disorders, 19 (November 2015)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 19 (November 2015) . - p.44-58 Titre : Facilitating derived requesting skills with a touchscreen tablet computer for children with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Katharine STILL, Auteur ; Richard J. MAY, Auteur ; Ruth Anne REHFELDT, Auteur ; Robert WHELAN, Auteur ; Simon DYMOND, Auteur Article en page(s) : p.44-58 Langues : Anglais (eng) Mots-clés : Manding  Requesting  Augmentative alternative communication devices  Equivalence relations  Autism Index. décimale : PER Périodiques Résumé : Two experiments were conducted employing derived relational responding and conditioned motivating operations to establish untaught mands with 11 children with autism spectrum disorder (ASD) who lacked a vocal repertoire. Following formal language assessments and preference assessments, a multi-stage automated protocol was implemented on touchscreen tablet computers. Children were first taught to mand by picture exchange for missing items necessary to play with a toy and then learned to conditionally relate the dictated names of the items to the corresponding pictures of the items (A-B training) and to relate the dictated names to the corresponding printed words (A-C training). Test probes, in the absence of reinforcement, were presented to determine whether or not participants would mand for the missing items using text exchange (hence demonstrating derived manding/requesting). Probes for spontaneous matching (B-C and C-B) and labeling (B-A and C-A) were also presented in both experiments, one of which employed a pretest/posttest design and the other a multiple probe across participants design. Across both experiments, all but one of the participants showed evidence of derived requesting and derived stimulus relations. Implications for research on high-tech devices for facilitating independent communication skills of children with ASD and for derived relational responding approaches to verbal operants are discussed. En ligne : http://dx.doi.org/10.1016/j.rasd.2015.04.006 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=270 [article] Facilitating derived requesting skills with a touchscreen tablet computer for children with autism spectrum disorder [Texte imprimé et/ou numérique] / Katharine STILL, Auteur ; Richard J. MAY, Auteur ; Ruth Anne REHFELDT, Auteur ; Robert WHELAN, Auteur ; Simon DYMOND, Auteur . - p.44-58. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 19 (November 2015) . - p.44-58 Mots-clés : Manding  Requesting  Augmentative alternative communication devices  Equivalence relations  Autism Index. décimale : PER Périodiques Résumé : Two experiments were conducted employing derived relational responding and conditioned motivating operations to establish untaught mands with 11 children with autism spectrum disorder (ASD) who lacked a vocal repertoire. Following formal language assessments and preference assessments, a multi-stage automated protocol was implemented on touchscreen tablet computers. Children were first taught to mand by picture exchange for missing items necessary to play with a toy and then learned to conditionally relate the dictated names of the items to the corresponding pictures of the items (A-B training) and to relate the dictated names to the corresponding printed words (A-C training). Test probes, in the absence of reinforcement, were presented to determine whether or not participants would mand for the missing items using text exchange (hence demonstrating derived manding/requesting). Probes for spontaneous matching (B-C and C-B) and labeling (B-A and C-A) were also presented in both experiments, one of which employed a pretest/posttest design and the other a multiple probe across participants design. Across both experiments, all but one of the participants showed evidence of derived requesting and derived stimulus relations. Implications for research on high-tech devices for facilitating independent communication skills of children with ASD and for derived relational responding approaches to verbal operants are discussed. En ligne : http://dx.doi.org/10.1016/j.rasd.2015.04.006 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=270

Facilitating requesting skills using high-tech augmentative and alternative communication devices with individuals with autism spectrum disorders: A systematic review / Katharine STILL in Research in Autism Spectrum Disorders, 8-9 (September 2014)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 8-9 (September 2014) . - p.1184-1199 Titre : Facilitating requesting skills using high-tech augmentative and alternative communication devices with individuals with autism spectrum disorders: A systematic review Type de document : Texte imprimé et/ou numérique Auteurs : Katharine STILL, Auteur ; Ruth Anne REHFELDT, Auteur ; Robert WHELAN, Auteur ; Richard MAY, Auteur ; Simon DYMOND, Auteur Article en page(s) : p.1184-1199 Langues : Anglais (eng) Mots-clés : Augmentative alternative communication devices  Requesting  High-tech  Technology  Autism Index. décimale : PER Périodiques Résumé : Abstract We conducted a systematic review to identify research studies that utilised high-tech devices (e.g., smartphone technology) to teach functional requesting skills to individuals under the age of 16 with a diagnosis of autism spectrum disorder (ASD). We identified 16 studies that included a total of 46 participants. Speech generating devices were the most frequently employed mode of communication, the most frequently requested items were preferred food or toys, and the maximum number of target-requesting skills taught was eight. Research has tended to utilise the multiple baseline design or a variant thereof (e.g., a multiple-probe design). Overall, the intervention results were largely positive, suggesting that high-tech devices can be successfully implemented as augmentative and alternative communication (AAC) devices for individuals with autism. Further research is needed to evaluate the claims made about high-tech AAC devices in facilitating requesting skills in children with ASD. En ligne : http://dx.doi.org/10.1016/j.rasd.2014.06.003 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=238 [article] Facilitating requesting skills using high-tech augmentative and alternative communication devices with individuals with autism spectrum disorders: A systematic review [Texte imprimé et/ou numérique] / Katharine STILL, Auteur ; Ruth Anne REHFELDT, Auteur ; Robert WHELAN, Auteur ; Richard MAY, Auteur ; Simon DYMOND, Auteur . - p.1184-1199. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 8-9 (September 2014) . - p.1184-1199 Mots-clés : Augmentative alternative communication devices  Requesting  High-tech  Technology  Autism Index. décimale : PER Périodiques Résumé : Abstract We conducted a systematic review to identify research studies that utilised high-tech devices (e.g., smartphone technology) to teach functional requesting skills to individuals under the age of 16 with a diagnosis of autism spectrum disorder (ASD). We identified 16 studies that included a total of 46 participants. Speech generating devices were the most frequently employed mode of communication, the most frequently requested items were preferred food or toys, and the maximum number of target-requesting skills taught was eight. Research has tended to utilise the multiple baseline design or a variant thereof (e.g., a multiple-probe design). Overall, the intervention results were largely positive, suggesting that high-tech devices can be successfully implemented as augmentative and alternative communication (AAC) devices for individuals with autism. Further research is needed to evaluate the claims made about high-tech AAC devices in facilitating requesting skills in children with ASD. En ligne : http://dx.doi.org/10.1016/j.rasd.2014.06.003 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=238

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

Trajectories of cortical structures associated with stress across adolescence: a bivariate latent change score approach / Tochukwu NWEZE in Journal of Child Psychology and Psychiatry, 64-8 (August 2023)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 64-8 (August 2023) . - p.1159-1175 Titre : Trajectories of cortical structures associated with stress across adolescence: a bivariate latent change score approach Type de document : Texte imprimé et/ou numérique Auteurs : Tochukwu NWEZE, Auteur ; Tobias BANASCHEWSKI, Auteur ; Cyracius AJAELU, Auteur ; Chukwuemeka OKOYE, Auteur ; Michael EZENWA, Auteur ; Robert WHELAN, Auteur ; Dimitri PAPADOPOULOS ORFANOS, Auteur ; Arun L. W. BOKDE, Auteur ; Sylvane DESRIVIERES, Auteur ; Antoine GRIGIS, Auteur ; Hugh GARAVAN, Auteur ; Penny GOWLAND, Auteur ; Andreas HEINZ, Auteur ; Rüdiger BRÜHL, Auteur ; Jean-Luc MARTINOT, Auteur ; Marie-Laure Paillère MARTINOT, Auteur ; Éric ARTIGES, Auteur ; Frauke NEES, Auteur ; Tomá? PAUS, Auteur ; Luise POUSTKA, Auteur ; Sarah HOHMANN, Auteur ; Sabina MILLENET, Auteur ; Juliane H. FRÖHNER, Auteur ; Michael N. SMOLKA, Auteur ; Henrik WALTER, Auteur ; Gunter SCHUMANN, Auteur ; Jamie L. HANSON, Auteur ; Imagen CONSORTIUM, Auteur Article en page(s) : p.1159-1175 Langues : Anglais (eng) Mots-clés : Stress  cortical development  cognitive functioning  longitudinal models  bivariate latent change score model  longitudinal mediation analysis Index. décimale : PER Périodiques Résumé : Background Stress exposure in childhood and adolescence has been linked to reductions in cortical structures and cognitive functioning. However, to date, most of these studies have been cross-sectional, limiting the ability to make long-term inferences, given that most cortical structures continue to develop through adolescence. Methods Here, we used a subset of the IMAGEN population cohort sample (N = 502; assessment ages: 14, 19, and 22 years; mean age: 21.945 years; SD = 0.610) to understand longitudinally the long-term interrelations between stress, cortical development, and cognitive functioning. To these ends, we first used a latent change score model to examine four bivariate relations assessing individual differences in change in the relations between adolescent stress exposure and volume, surface area, and cortical thickness of cortical structures, as well as cognitive outcomes. Second, we probed for indirect neurocognitive effects linking stress to cortical brain structures and cognitive functions using rich longitudinal mediation modeling. Results Latent change score modeling showed that greater baseline adolescence stress at age 14 predicted a small reduction in the right anterior cingulate volume (Std. = .327, p = .042, 95% CI [ 0.643, 0.012]) and right anterior cingulate surface area (Std. = .274, p = .038, 95% CI [ 0.533, 0.015]) across ages 14 22. These effects were very modest in nature and became nonsignificant after correcting for multiple comparisons. Our longitudinal analyses found no evidence of indirect effects in the two neurocognitive pathways linking adolescent stress to brain and cognitive outcomes. Conclusion Findings shed light on the impact of stress on brain reductions, particularly in the prefrontal cortex that have consistently been implicated in the previous cross-sectional studies. However, the magnitude of effects observed in our study is smaller than that has been reported in past cross-sectional work. This suggests that the potential impact of stress during adolescence on brain structures may likely be more modest than previously noted. En ligne : https://doi.org/10.1111/jcpp.13793 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=508 [article] Trajectories of cortical structures associated with stress across adolescence: a bivariate latent change score approach [Texte imprimé et/ou numérique] / Tochukwu NWEZE, Auteur ; Tobias BANASCHEWSKI, Auteur ; Cyracius AJAELU, Auteur ; Chukwuemeka OKOYE, Auteur ; Michael EZENWA, Auteur ; Robert WHELAN, Auteur ; Dimitri PAPADOPOULOS ORFANOS, Auteur ; Arun L. W. BOKDE, Auteur ; Sylvane DESRIVIERES, Auteur ; Antoine GRIGIS, Auteur ; Hugh GARAVAN, Auteur ; Penny GOWLAND, Auteur ; Andreas HEINZ, Auteur ; Rüdiger BRÜHL, Auteur ; Jean-Luc MARTINOT, Auteur ; Marie-Laure Paillère MARTINOT, Auteur ; Éric ARTIGES, Auteur ; Frauke NEES, Auteur ; Tomá? PAUS, Auteur ; Luise POUSTKA, Auteur ; Sarah HOHMANN, Auteur ; Sabina MILLENET, Auteur ; Juliane H. FRÖHNER, Auteur ; Michael N. SMOLKA, Auteur ; Henrik WALTER, Auteur ; Gunter SCHUMANN, Auteur ; Jamie L. HANSON, Auteur ; Imagen CONSORTIUM, Auteur . - p.1159-1175. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 64-8 (August 2023) . - p.1159-1175 Mots-clés : Stress  cortical development  cognitive functioning  longitudinal models  bivariate latent change score model  longitudinal mediation analysis Index. décimale : PER Périodiques Résumé : Background Stress exposure in childhood and adolescence has been linked to reductions in cortical structures and cognitive functioning. However, to date, most of these studies have been cross-sectional, limiting the ability to make long-term inferences, given that most cortical structures continue to develop through adolescence. Methods Here, we used a subset of the IMAGEN population cohort sample (N = 502; assessment ages: 14, 19, and 22 years; mean age: 21.945 years; SD = 0.610) to understand longitudinally the long-term interrelations between stress, cortical development, and cognitive functioning. To these ends, we first used a latent change score model to examine four bivariate relations assessing individual differences in change in the relations between adolescent stress exposure and volume, surface area, and cortical thickness of cortical structures, as well as cognitive outcomes. Second, we probed for indirect neurocognitive effects linking stress to cortical brain structures and cognitive functions using rich longitudinal mediation modeling. Results Latent change score modeling showed that greater baseline adolescence stress at age 14 predicted a small reduction in the right anterior cingulate volume (Std. = .327, p = .042, 95% CI [ 0.643, 0.012]) and right anterior cingulate surface area (Std. = .274, p = .038, 95% CI [ 0.533, 0.015]) across ages 14 22. These effects were very modest in nature and became nonsignificant after correcting for multiple comparisons. Our longitudinal analyses found no evidence of indirect effects in the two neurocognitive pathways linking adolescent stress to brain and cognitive outcomes. Conclusion Findings shed light on the impact of stress on brain reductions, particularly in the prefrontal cortex that have consistently been implicated in the previous cross-sectional studies. However, the magnitude of effects observed in our study is smaller than that has been reported in past cross-sectional work. This suggests that the potential impact of stress during adolescence on brain structures may likely be more modest than previously noted. En ligne : https://doi.org/10.1111/jcpp.13793 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=508

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