Effectiveness of avatar-delivered instruction on social initiations by children with Autism Spectrum Disorder / Cade T. CHARLTON in Research in Autism Spectrum Disorders, 71 (March 2020)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 71 (March 2020) . - p.101494 Titre : Effectiveness of avatar-delivered instruction on social initiations by children with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Cade T. CHARLTON, Auteur ; Ryan O. KELLEMS, Auteur ; Brooke BLACK, Auteur ; Heidi C. BUSSEY, Auteur ; Rachel FERGUSON, Auteur ; Bruna GONCALVES, Auteur ; Mikaela JENSEN, Auteur ; Sara VALLEJO, Auteur Article en page(s) : p.101494 Langues : Anglais (eng) Mots-clés : Autism  Social skills  Conversations  Live-animation  Avatar  Generalization Index. décimale : PER Périodiques Résumé : Background Individuals with autism often struggle to establish and maintain positive relationships with peers and adults due to communication and social difficulties. Reviews of the research literature on social skills curricula suggest these approaches may be less than effective and often fail to promote generalization of acquired skills. Advances in the availability and adaptability of live animation and digital avatars could provide interventionists a tool to maximize engagement during instruction and program for generalization. The purpose of this study was to examine the effects of an avatar-based social skills intervention on participants’ social initiations in a clinical setting and with same-age peers. Method The research team used a nonconcurrent multiple baseline design to evaluate the effects of instruction from an avatar on students' social skills. Systematic direct observation and the Social Skills Improvement System were used to evaluate the effects of an avatar delivered social skills lesson. Social validity was measured from the perspective of both participants and their parents. Results Following instruction from an avatar, participants’ percentage of independent steps completed in the skill “starting a conversation” increased to consistently above 80 %, or above typical mastery levels. Participants’ conversation skills generalized to interactions with same-age peers. Finally, parents reported small positive gains in social skills, and participants indicated the intervention was socially valid. Conclusions The findings from this study support the use of technology-aided interventions and instruction, specifically the use of live animation avatars. Future studies could extend use of this technology beyond the relatively simple, yet effective, application described here. En ligne : https://doi.org/10.1016/j.rasd.2019.101494 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=416 [article] Effectiveness of avatar-delivered instruction on social initiations by children with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Cade T. CHARLTON, Auteur ; Ryan O. KELLEMS, Auteur ; Brooke BLACK, Auteur ; Heidi C. BUSSEY, Auteur ; Rachel FERGUSON, Auteur ; Bruna GONCALVES, Auteur ; Mikaela JENSEN, Auteur ; Sara VALLEJO, Auteur . - p.101494. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 71 (March 2020) . - p.101494 Mots-clés : Autism  Social skills  Conversations  Live-animation  Avatar  Generalization Index. décimale : PER Périodiques Résumé : Background Individuals with autism often struggle to establish and maintain positive relationships with peers and adults due to communication and social difficulties. Reviews of the research literature on social skills curricula suggest these approaches may be less than effective and often fail to promote generalization of acquired skills. Advances in the availability and adaptability of live animation and digital avatars could provide interventionists a tool to maximize engagement during instruction and program for generalization. The purpose of this study was to examine the effects of an avatar-based social skills intervention on participants’ social initiations in a clinical setting and with same-age peers. Method The research team used a nonconcurrent multiple baseline design to evaluate the effects of instruction from an avatar on students' social skills. Systematic direct observation and the Social Skills Improvement System were used to evaluate the effects of an avatar delivered social skills lesson. Social validity was measured from the perspective of both participants and their parents. Results Following instruction from an avatar, participants’ percentage of independent steps completed in the skill “starting a conversation” increased to consistently above 80 %, or above typical mastery levels. Participants’ conversation skills generalized to interactions with same-age peers. Finally, parents reported small positive gains in social skills, and participants indicated the intervention was socially valid. Conclusions The findings from this study support the use of technology-aided interventions and instruction, specifically the use of live animation avatars. Future studies could extend use of this technology beyond the relatively simple, yet effective, application described here. En ligne : https://doi.org/10.1016/j.rasd.2019.101494 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=416

Relationship between brain stem volume and aggression in children diagnosed with autism spectrum disorder / Rebecca A. LUNDWALL in Research in Autism Spectrum Disorders, 34 (February 2017)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 34 (February 2017) . - p.44-51 Titre : Relationship between brain stem volume and aggression in children diagnosed with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Rebecca A. LUNDWALL, Auteur ; Kevin G. STEPHENSON, Auteur ; E. Shannon NEELEY-TASS, Auteur ; Jonathan C. COX, Auteur ; Mikle SOUTH, Auteur ; Erin D. BIGLER, Auteur ; Emily I. ANDERBERG, Auteur ; Molly D. PRIGGE, Auteur ; Blake D. HANSEN, Auteur ; Janet E. LAINHART, Auteur ; Ryan O. KELLEMS, Auteur ; Jo Ann PETRIE, Auteur ; Terisa P. GABRIELSEN, Auteur Article en page(s) : p.44-51 Langues : Anglais (eng) Mots-clés : Autism  Aggression  Imaging  Brainstem  Structural MRI Index. décimale : PER Périodiques Résumé : AbstractBackground Aggressive behaviors are common in individuals diagnosed with autism spectrum disorder (ASD) and may be phenotypic indicators of different subtypes within ASD. In current research literature for non-ASD samples, aggression has been linked to several brain structures associated with emotion and behavioral control. However, few if any studies exist investigating brain volume differences in individuals with ASD who have comorbid aggression as indicated by standardized diagnostic and behavioral measures. Method We examined neuroimaging data from individuals rigorously diagnosed with ASD versus typically developing (TD) controls. We began with data from brain volume regions of interest (ROI) taken from previous literature on aggression including the brainstem, amygdala, orbitofrontal cortex, anterior cingulate cortex, and dorsolateral prefrontal cortex. We defined aggression status using the Irritability subscale of the Aberrant Behavior Checklist and used lasso logistic regression to select among these predictor variables. Brainstem volume was the only variable shown to be a predictor of aggression status. Results We found that smaller brainstem volumes are associated with higher odds of being in the high aggression group. Conclusions Understanding brain differences in individuals with ASD who engage in aggressive behavior from those with ASD who do not can inform treatment approaches. Future research should investigate brainstem structure and function in ASD to identify possible mechanisms related to arousal and aggression. En ligne : http://dx.doi.org/10.1016/j.rasd.2016.12.001 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=298 [article] Relationship between brain stem volume and aggression in children diagnosed with autism spectrum disorder [Texte imprimé et/ou numérique] / Rebecca A. LUNDWALL, Auteur ; Kevin G. STEPHENSON, Auteur ; E. Shannon NEELEY-TASS, Auteur ; Jonathan C. COX, Auteur ; Mikle SOUTH, Auteur ; Erin D. BIGLER, Auteur ; Emily I. ANDERBERG, Auteur ; Molly D. PRIGGE, Auteur ; Blake D. HANSEN, Auteur ; Janet E. LAINHART, Auteur ; Ryan O. KELLEMS, Auteur ; Jo Ann PETRIE, Auteur ; Terisa P. GABRIELSEN, Auteur . - p.44-51. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 34 (February 2017) . - p.44-51 Mots-clés : Autism  Aggression  Imaging  Brainstem  Structural MRI Index. décimale : PER Périodiques Résumé : AbstractBackground Aggressive behaviors are common in individuals diagnosed with autism spectrum disorder (ASD) and may be phenotypic indicators of different subtypes within ASD. In current research literature for non-ASD samples, aggression has been linked to several brain structures associated with emotion and behavioral control. However, few if any studies exist investigating brain volume differences in individuals with ASD who have comorbid aggression as indicated by standardized diagnostic and behavioral measures. Method We examined neuroimaging data from individuals rigorously diagnosed with ASD versus typically developing (TD) controls. We began with data from brain volume regions of interest (ROI) taken from previous literature on aggression including the brainstem, amygdala, orbitofrontal cortex, anterior cingulate cortex, and dorsolateral prefrontal cortex. We defined aggression status using the Irritability subscale of the Aberrant Behavior Checklist and used lasso logistic regression to select among these predictor variables. Brainstem volume was the only variable shown to be a predictor of aggression status. Results We found that smaller brainstem volumes are associated with higher odds of being in the high aggression group. Conclusions Understanding brain differences in individuals with ASD who engage in aggressive behavior from those with ASD who do not can inform treatment approaches. Future research should investigate brainstem structure and function in ASD to identify possible mechanisms related to arousal and aggression. En ligne : http://dx.doi.org/10.1016/j.rasd.2016.12.001 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=298

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