Children with autism spectrum disorder produce more ambiguous and less socially meaningful facial expressions: an experimental study using random forest classifiers / Charline GROSSARD in Molecular Autism, 11 (2020)  

Public ISBD [article]  inMolecular Autism > 11 (2020) . - 5 p. Titre : Children with autism spectrum disorder produce more ambiguous and less socially meaningful facial expressions: an experimental study using random forest classifiers Type de document : Texte imprimé et/ou numérique Auteurs : Charline GROSSARD, Auteur ; Arnaud DAPOGNY, Auteur ; David COHEN, Auteur ; Sacha BERNHEIM, Auteur ; Estelle JUILLET, Auteur ; Fanny HAMEL, Auteur ; Stéphanie HUN, Auteur ; Jérémy BOURGEOIS, Auteur ; Hugues PELLERIN, Auteur ; Sylvie SERRET, Auteur ; Kevin BAILLY, Auteur ; Laurence CHABY, Auteur Article en page(s) : 5 p. Langues : Anglais (eng) Mots-clés : Algorithm  Autism spectrum disorder  Emotion  Facial expressions Index. décimale : PER Périodiques Résumé : BACKGROUND: Computer vision combined with human annotation could offer a novel method for exploring facial expression (FE) dynamics in children with autism spectrum disorder (ASD). METHODS: We recruited 157 children with typical development (TD) and 36 children with ASD in Paris and Nice to perform two experimental tasks to produce FEs with emotional valence. FEs were explored by judging ratings and by random forest (RF) classifiers. To do so, we located a set of 49 facial landmarks in the task videos, we generated a set of geometric and appearance features and we used RF classifiers to explore how children with ASD differed from TD children when producing FEs. RESULTS: Using multivariate models including other factors known to predict FEs (age, gender, intellectual quotient, emotion subtype, cultural background), ratings from expert raters showed that children with ASD had more difficulty producing FEs than TD children. In addition, when we explored how RF classifiers performed, we found that classification tasks, except for those for sadness, were highly accurate and that RF classifiers needed more facial landmarks to achieve the best classification for children with ASD. Confusion matrices showed that when RF classifiers were tested in children with ASD, anger was often confounded with happiness. LIMITATIONS: The sample size of the group of children with ASD was lower than that of the group of TD children. By using several control calculations, we tried to compensate for this limitation. CONCLUSION: Children with ASD have more difficulty producing socially meaningful FEs. The computer vision methods we used to explore FE dynamics also highlight that the production of FEs in children with ASD carries more ambiguity. En ligne : http://dx.doi.org/10.1186/s13229-020-0312-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=427 [article] Children with autism spectrum disorder produce more ambiguous and less socially meaningful facial expressions: an experimental study using random forest classifiers [Texte imprimé et/ou numérique] / Charline GROSSARD, Auteur ; Arnaud DAPOGNY, Auteur ; David COHEN, Auteur ; Sacha BERNHEIM, Auteur ; Estelle JUILLET, Auteur ; Fanny HAMEL, Auteur ; Stéphanie HUN, Auteur ; Jérémy BOURGEOIS, Auteur ; Hugues PELLERIN, Auteur ; Sylvie SERRET, Auteur ; Kevin BAILLY, Auteur ; Laurence CHABY, Auteur . - 5 p. Langues : Anglais (eng) in Molecular Autism > 11 (2020) . - 5 p. Mots-clés : Algorithm  Autism spectrum disorder  Emotion  Facial expressions Index. décimale : PER Périodiques Résumé : BACKGROUND: Computer vision combined with human annotation could offer a novel method for exploring facial expression (FE) dynamics in children with autism spectrum disorder (ASD). METHODS: We recruited 157 children with typical development (TD) and 36 children with ASD in Paris and Nice to perform two experimental tasks to produce FEs with emotional valence. FEs were explored by judging ratings and by random forest (RF) classifiers. To do so, we located a set of 49 facial landmarks in the task videos, we generated a set of geometric and appearance features and we used RF classifiers to explore how children with ASD differed from TD children when producing FEs. RESULTS: Using multivariate models including other factors known to predict FEs (age, gender, intellectual quotient, emotion subtype, cultural background), ratings from expert raters showed that children with ASD had more difficulty producing FEs than TD children. In addition, when we explored how RF classifiers performed, we found that classification tasks, except for those for sadness, were highly accurate and that RF classifiers needed more facial landmarks to achieve the best classification for children with ASD. Confusion matrices showed that when RF classifiers were tested in children with ASD, anger was often confounded with happiness. LIMITATIONS: The sample size of the group of children with ASD was lower than that of the group of TD children. By using several control calculations, we tried to compensate for this limitation. CONCLUSION: Children with ASD have more difficulty producing socially meaningful FEs. The computer vision methods we used to explore FE dynamics also highlight that the production of FEs in children with ASD carries more ambiguity. En ligne : http://dx.doi.org/10.1186/s13229-020-0312-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=427

Enseigner la reconnaissance des émotions chez des enfants et adolescents avec autisme de haut et bas niveaux de fonctionnement à l’aide d’un serious game, "Jestimule" / Sylvie SERRET in Bulletin Scientifique de l'arapi (Le), 32 (Automne 2013)

Public ISBD [article]  inBulletin Scientifique de l'arapi (Le) > 32 (Automne 2013) . - p.58-61 Titre : Enseigner la reconnaissance des émotions chez des enfants et adolescents avec autisme de haut et bas niveaux de fonctionnement à l’aide d’un serious game, "Jestimule" Type de document : Texte imprimé et/ou numérique Auteurs : Sylvie SERRET, Auteur Année de publication : 2013 Article en page(s) : p.58-61 Langues : Français (fre) Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=229 [article] Enseigner la reconnaissance des émotions chez des enfants et adolescents avec autisme de haut et bas niveaux de fonctionnement à l’aide d’un serious game, "Jestimule" [Texte imprimé et/ou numérique] / Sylvie SERRET, Auteur . - 2013 . - p.58-61. Langues : Français (fre) in Bulletin Scientifique de l'arapi (Le) > 32 (Automne 2013) . - p.58-61 Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=229

Facing the challenge of teaching emotions to individuals with low- and high-functioning autism using a new Serious game: a pilot study / Sylvie SERRET in Molecular Autism, (July 2014)  

Public ISBD [article]  inMolecular Autism > (July 2014) . - p.1-17 Titre : Facing the challenge of teaching emotions to individuals with low- and high-functioning autism using a new Serious game: a pilot study Type de document : Texte imprimé et/ou numérique Auteurs : Sylvie SERRET, Auteur ; Stéphanie HUN, Auteur ; Galina IAKIMOVA, Auteur ; José LOZADA, Auteur ; Margarita ANASTASSOVA, Auteur ; Andreia SANTOS, Auteur ; Stephanie VESPERINI, Auteur ; Florence ASKENAZY, Auteur Article en page(s) : p.1-17 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : It is widely accepted that emotion processing difficulties are involved in Autism Spectrum Conditions (ASC). An increasing number of studies have focused on the development of training programs and have shown promising results. However, most of these programs are appropriate for individuals with high-functioning ASC (HFA) but exclude individuals with low-functioning ASC (LFA). We have developed a computer-based game called JeStiMulE based on logical skills to teach emotions to individuals with ASC, independently of their age, intellectual, verbal and academic level. En ligne : http://dx.doi.org/10.1186/2040-2392-5-37 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=276 [article] Facing the challenge of teaching emotions to individuals with low- and high-functioning autism using a new Serious game: a pilot study [Texte imprimé et/ou numérique] / Sylvie SERRET, Auteur ; Stéphanie HUN, Auteur ; Galina IAKIMOVA, Auteur ; José LOZADA, Auteur ; Margarita ANASTASSOVA, Auteur ; Andreia SANTOS, Auteur ; Stephanie VESPERINI, Auteur ; Florence ASKENAZY, Auteur . - p.1-17. Langues : Anglais (eng) in Molecular Autism > (July 2014) . - p.1-17 Index. décimale : PER Périodiques Résumé : It is widely accepted that emotion processing difficulties are involved in Autism Spectrum Conditions (ASC). An increasing number of studies have focused on the development of training programs and have shown promising results. However, most of these programs are appropriate for individuals with high-functioning ASC (HFA) but exclude individuals with low-functioning ASC (LFA). We have developed a computer-based game called JeStiMulE based on logical skills to teach emotions to individuals with ASC, independently of their age, intellectual, verbal and academic level. En ligne : http://dx.doi.org/10.1186/2040-2392-5-37 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=276

Présentation d'un « serious game» : «JeStiMulE» visant à améliorer la cognition sociale des personnes avec un trouble envahissant du développement / Sylvie SERRET in Bulletin Scientifique de l'arapi (Le), 30 (décembre 2012)

Public ISBD [article]  inBulletin Scientifique de l'arapi (Le) > 30 (décembre 2012) . - p.18-22 Titre : Présentation d'un « serious game» : «JeStiMulE» visant à améliorer la cognition sociale des personnes avec un trouble envahissant du développement Type de document : Texte imprimé et/ou numérique Auteurs : Sylvie SERRET, Auteur ; Stéphanie HUN, Auteur ; Galina JAKIMOVA, Auteur ; José LOZADA, Auteur ; Margarita ANASTASSOVA, Auteur ; Florence ASKENAZY, Auteur Année de publication : 2012 Article en page(s) : p.18-22 Langues : Français (fre) Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=187 [article] Présentation d'un « serious game» : «JeStiMulE» visant à améliorer la cognition sociale des personnes avec un trouble envahissant du développement [Texte imprimé et/ou numérique] / Sylvie SERRET, Auteur ; Stéphanie HUN, Auteur ; Galina JAKIMOVA, Auteur ; José LOZADA, Auteur ; Margarita ANASTASSOVA, Auteur ; Florence ASKENAZY, Auteur . - 2012 . - p.18-22. Langues : Français (fre) in Bulletin Scientifique de l'arapi (Le) > 30 (décembre 2012) . - p.18-22 Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=187

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