Assessing the Utility of a Virtual Environment for Enhancing Facial Affect Recognition in Adolescents with Autism / Esubalew BEKELE in Journal of Autism and Developmental Disorders, 44-7 (July 2014)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 44-7 (July 2014) . - p.1641-1650 Titre : Assessing the Utility of a Virtual Environment for Enhancing Facial Affect Recognition in Adolescents with Autism Type de document : Texte imprimé et/ou numérique Auteurs : Esubalew BEKELE, Auteur ; Julie CRITTENDON, Auteur ; Zhi ZHENG, Auteur ; Amy SWANSON, Auteur ; Amy WEITLAUF, Auteur ; Zachary WARREN, Auteur ; Nilanjan SARKAR, Auteur Article en page(s) : p.1641-1650 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders  Virtual reality  Facial expressions  Adaptive systems Index. décimale : PER Périodiques Résumé : Teenagers with autism spectrum disorder (ASD) and age-matched controls participated in a dynamic facial affect recognition task within a virtual reality (VR) environment. Participants identified the emotion of a facial expression displayed at varied levels of intensity by a computer generated avatar. The system assessed performance (i.e., accuracy, confidence ratings, response latency, and stimulus discrimination) as well as how participants used their gaze to process facial information using an eye tracker. Participants in both groups were similarly accurate at basic facial affect recognition at varied levels of intensity. Despite similar performance characteristics, ASD participants endorsed lower confidence in their responses and substantial variation in gaze patterns in absence of perceptual discrimination deficits. These results add support to the hypothesis that deficits in emotion and face recognition for individuals with ASD are related to fundamental differences in information processing. We discuss implications of this finding in a VR environment with regards to potential future applications and paradigms targeting not just enhanced performance, but enhanced social information processing within intelligent systems capable of adaptation to individual processing differences. En ligne : http://dx.doi.org/10.1007/s10803-014-2035-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=236 [article] Assessing the Utility of a Virtual Environment for Enhancing Facial Affect Recognition in Adolescents with Autism [Texte imprimé et/ou numérique] / Esubalew BEKELE, Auteur ; Julie CRITTENDON, Auteur ; Zhi ZHENG, Auteur ; Amy SWANSON, Auteur ; Amy WEITLAUF, Auteur ; Zachary WARREN, Auteur ; Nilanjan SARKAR, Auteur . - p.1641-1650. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 44-7 (July 2014) . - p.1641-1650 Mots-clés : Autism spectrum disorders  Virtual reality  Facial expressions  Adaptive systems Index. décimale : PER Périodiques Résumé : Teenagers with autism spectrum disorder (ASD) and age-matched controls participated in a dynamic facial affect recognition task within a virtual reality (VR) environment. Participants identified the emotion of a facial expression displayed at varied levels of intensity by a computer generated avatar. The system assessed performance (i.e., accuracy, confidence ratings, response latency, and stimulus discrimination) as well as how participants used their gaze to process facial information using an eye tracker. Participants in both groups were similarly accurate at basic facial affect recognition at varied levels of intensity. Despite similar performance characteristics, ASD participants endorsed lower confidence in their responses and substantial variation in gaze patterns in absence of perceptual discrimination deficits. These results add support to the hypothesis that deficits in emotion and face recognition for individuals with ASD are related to fundamental differences in information processing. We discuss implications of this finding in a VR environment with regards to potential future applications and paradigms targeting not just enhanced performance, but enhanced social information processing within intelligent systems capable of adaptation to individual processing differences. En ligne : http://dx.doi.org/10.1007/s10803-014-2035-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=236

Diagnostic Yield of Chromosomal Microarray Analysis in an Autism Primary Care Practice: Which Guidelines to Implement? / Susan G. MCGREW in Journal of Autism and Developmental Disorders, 42-8 (August 2012)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 42-8 (August 2012) . - p.1582-1591 Titre : Diagnostic Yield of Chromosomal Microarray Analysis in an Autism Primary Care Practice: Which Guidelines to Implement? Type de document : Texte imprimé et/ou numérique Auteurs : Susan G. MCGREW, Auteur ; Brittany R. PETERS, Auteur ; Julie CRITTENDON, Auteur ; Jeremy VEENSTRA-VANDERWEELE, Auteur Année de publication : 2012 Article en page(s) : p.1582-1591 Langues : Anglais (eng) Mots-clés : Genetic testing guidelines  Chromosomal microarray  Karyotype  Dysmorphology Index. décimale : PER Périodiques Résumé : Genetic testing is recommended for patients with ASD; however specific recommendations vary by specialty. American Academy of Pediatrics and American Academy of Neurology guidelines recommend G-banded karyotype and Fragile X DNA. The American College of Medical Genetics recommends Chromosomal Microarray Analysis (CMA). We determined the yield of CMA (N = 85), karyotype (N = 119), and fragile X (N = 174) testing in a primary pediatrics autism practice. We found twenty (24%) patients with abnormal CMA results (eight were clinically significant), three abnormal karyotypes and one Fragile X syndrome. There was no relationship between CMA result and cognitive level, seizures, dysmorphology, congenital malformations or behavior. We conclude that CMA should be the clinical standard in all specialties for first tier genetic testing in ASD. En ligne : http://dx.doi.org/10.1007/s10803-011-1398-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=178 [article] Diagnostic Yield of Chromosomal Microarray Analysis in an Autism Primary Care Practice: Which Guidelines to Implement? [Texte imprimé et/ou numérique] / Susan G. MCGREW, Auteur ; Brittany R. PETERS, Auteur ; Julie CRITTENDON, Auteur ; Jeremy VEENSTRA-VANDERWEELE, Auteur . - 2012 . - p.1582-1591. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 42-8 (August 2012) . - p.1582-1591 Mots-clés : Genetic testing guidelines  Chromosomal microarray  Karyotype  Dysmorphology Index. décimale : PER Périodiques Résumé : Genetic testing is recommended for patients with ASD; however specific recommendations vary by specialty. American Academy of Pediatrics and American Academy of Neurology guidelines recommend G-banded karyotype and Fragile X DNA. The American College of Medical Genetics recommends Chromosomal Microarray Analysis (CMA). We determined the yield of CMA (N = 85), karyotype (N = 119), and fragile X (N = 174) testing in a primary pediatrics autism practice. We found twenty (24%) patients with abnormal CMA results (eight were clinically significant), three abnormal karyotypes and one Fragile X syndrome. There was no relationship between CMA result and cognitive level, seizures, dysmorphology, congenital malformations or behavior. We conclude that CMA should be the clinical standard in all specialties for first tier genetic testing in ASD. En ligne : http://dx.doi.org/10.1007/s10803-011-1398-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=178

Neurocognitive and Behavioral Outcomes of Younger Siblings of Children with Autism Spectrum Disorder at Age Five / Zachary WARREN in Journal of Autism and Developmental Disorders, 42-3 (March 2012)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 42-3 (March 2012) . - p.409-418 Titre : Neurocognitive and Behavioral Outcomes of Younger Siblings of Children with Autism Spectrum Disorder at Age Five Type de document : Texte imprimé et/ou numérique Auteurs : Zachary WARREN, Auteur ; Jennifer H. FOSS-FEIG, Auteur ; Elizabeth MALESA, Auteur ; Evon B. LEE, Auteur ; Julie LOUNDS TAYLOR, Auteur ; Cassandra R. NEWSOM, Auteur ; Julie CRITTENDON, Auteur ; Wendy L. STONE, Auteur Année de publication : 2012 Article en page(s) : p.409-418 Langues : Anglais (eng) Mots-clés : Autism  Siblings  Cognition  Language  Behavior  Broad autism phenotype Index. décimale : PER Périodiques Résumé : Later-born siblings of children with Autism Spectrum Disorders (ASD) are at increased risk for ASD as well as qualitatively similar traits not meeting clinical cutoffs for the disorder. This study examined age five neurocognitive and behavioral outcomes of 39 younger siblings of children with ASD (Sibs-ASD) and 22 younger siblings of typically developing children (Sibs-TD) previously assessed in a longitudinal investigation starting in the second year of life. There were few group differences between Sibs-TD and Sibs-ASD on global measures of IQ, language, or behavior problems. Sibs-ASD did show vulnerabilities on measures of executive functioning, social cognition, and repetitive behaviors. These results highlight the importance of following sibling risk groups over an extended time period and employing measures targeting broader aspects of development. En ligne : http://dx.doi.org/10.1007/s10803-011-1263-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=152 [article] Neurocognitive and Behavioral Outcomes of Younger Siblings of Children with Autism Spectrum Disorder at Age Five [Texte imprimé et/ou numérique] / Zachary WARREN, Auteur ; Jennifer H. FOSS-FEIG, Auteur ; Elizabeth MALESA, Auteur ; Evon B. LEE, Auteur ; Julie LOUNDS TAYLOR, Auteur ; Cassandra R. NEWSOM, Auteur ; Julie CRITTENDON, Auteur ; Wendy L. STONE, Auteur . - 2012 . - p.409-418. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 42-3 (March 2012) . - p.409-418 Mots-clés : Autism  Siblings  Cognition  Language  Behavior  Broad autism phenotype Index. décimale : PER Périodiques Résumé : Later-born siblings of children with Autism Spectrum Disorders (ASD) are at increased risk for ASD as well as qualitatively similar traits not meeting clinical cutoffs for the disorder. This study examined age five neurocognitive and behavioral outcomes of 39 younger siblings of children with ASD (Sibs-ASD) and 22 younger siblings of typically developing children (Sibs-TD) previously assessed in a longitudinal investigation starting in the second year of life. There were few group differences between Sibs-TD and Sibs-ASD on global measures of IQ, language, or behavior problems. Sibs-ASD did show vulnerabilities on measures of executive functioning, social cognition, and repetitive behaviors. These results highlight the importance of following sibling risk groups over an extended time period and employing measures targeting broader aspects of development. En ligne : http://dx.doi.org/10.1007/s10803-011-1263-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=152

Pilot clinical application of an adaptive robotic system for young children with autism / Esubalew BEKELE in Autism, 18-5 (July 2014)  

Public ISBD [article]  inAutism > 18-5 (July 2014) . - p.598-608 Titre : Pilot clinical application of an adaptive robotic system for young children with autism Type de document : Texte imprimé et/ou numérique Auteurs : Esubalew BEKELE, Auteur ; Julie CRITTENDON, Auteur ; Amy SWANSON, Auteur ; Nilanjan SARKAR, Auteur ; Zachary WARREN, Auteur Article en page(s) : p.598-608 Langues : Anglais (eng) Mots-clés : autism spectrum disorder  joint attention  robotics  technology Index. décimale : PER Périodiques Résumé : It has been argued that clinical applications of advanced technology may hold promise for addressing impairments associated with autism spectrum disorders. This pilot feasibility study evaluated the application of a novel adaptive robot-mediated system capable of both administering and automatically adjusting joint attention prompts to a small group of preschool children with autism spectrum disorders (n = 6) and a control group (n = 6). Children in both groups spent more time looking at the humanoid robot and were able to achieve a high level of accuracy across trials. However, across groups, children required higher levels of prompting to successfully orient within robot-administered trials. The results highlight both the potential benefits of closed-loop adaptive robotic systems as well as current limitations of existing humanoid-robotic platforms. En ligne : http://dx.doi.org/10.1177/1362361313479454 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=233 [article] Pilot clinical application of an adaptive robotic system for young children with autism [Texte imprimé et/ou numérique] / Esubalew BEKELE, Auteur ; Julie CRITTENDON, Auteur ; Amy SWANSON, Auteur ; Nilanjan SARKAR, Auteur ; Zachary WARREN, Auteur . - p.598-608. Langues : Anglais (eng) in Autism > 18-5 (July 2014) . - p.598-608 Mots-clés : autism spectrum disorder  joint attention  robotics  technology Index. décimale : PER Périodiques Résumé : It has been argued that clinical applications of advanced technology may hold promise for addressing impairments associated with autism spectrum disorders. This pilot feasibility study evaluated the application of a novel adaptive robot-mediated system capable of both administering and automatically adjusting joint attention prompts to a small group of preschool children with autism spectrum disorders (n = 6) and a control group (n = 6). Children in both groups spent more time looking at the humanoid robot and were able to achieve a high level of accuracy across trials. However, across groups, children required higher levels of prompting to successfully orient within robot-administered trials. The results highlight both the potential benefits of closed-loop adaptive robotic systems as well as current limitations of existing humanoid-robotic platforms. En ligne : http://dx.doi.org/10.1177/1362361313479454 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=233

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