Centre d'Information et de documentation du CRA Rhône-Alpes
CRA
Informations pratiques
-
Adresse
Centre d'information et de documentation
du CRA Rhône-Alpes
Centre Hospitalier le Vinatier
bât 211
95, Bd Pinel
69678 Bron CedexHoraires
Lundi au Vendredi
9h00-12h00 13h30-16h00Contact
Tél: +33(0)4 37 91 54 65
Mail
Fax: +33(0)4 37 91 54 37
-
Résultat de la recherche
2 recherche sur le mot-clé 'Facial features'
Affiner la recherche Générer le flux rss de la recherche
Partager le résultat de cette recherche Faire une suggestion
Sexually dimorphic facial features vary according to level of autistic-like traits in the general population / S. Z. GILANI in Journal of Neurodevelopmental Disorders, 7-1 (December 2015)
[article]
Titre : Sexually dimorphic facial features vary according to level of autistic-like traits in the general population Type de document : Texte imprimé et/ou numérique Auteurs : S. Z. GILANI, Auteur ; D. W. TAN, Auteur ; S. N. RUSSELL-SMITH, Auteur ; M. T. MAYBERY, Auteur ; A. MIAN, Auteur ; P. R. EASTWOOD, Auteur ; F. SHAFAIT, Auteur ; M. GOONEWARDENE, Auteur ; Andrew J. O. WHITEHOUSE, Auteur Article en page(s) : p.14 Langues : Anglais (eng) Mots-clés : Autism Autism spectrum disorder Facial features Femininity Gender defiant disorder Hypermasculinisation Masculinity Raine study Index. décimale : PER Périodiques Résumé : BACKGROUND: In a recent study, Bejerot et al. observed that several physical features (including faces) of individuals with an autism spectrum disorder (ASD) were more androgynous than those of their typically developed counterparts, suggesting that ASD may be understood as a 'gender defiant' disorder. These findings are difficult to reconcile with the hypermasculinisation account, which proposes that ASD may be an exaggerated form of cognitive and biological masculinity. The current study extended these data by first identifying six facial features that best distinguished males and females from the general population and then examining these features in typically developing groups selected for high and low levels of autistic-like traits. METHODS: In study 1, three-dimensional (3D) facial images were collected from 208 young adult males and females recruited from the general population. Twenty-three facial distances were measured from these images and a gender classification and scoring algorithm was employed to identify a set of six facial features that most effectively distinguished male from female faces. In study 2, measurements of these six features were compared for groups of young adults selected for high (n = 46) or low (n = 66) levels of autistic-like traits. RESULTS: For each sex, four of the six sexually dimorphic facial distances significantly differentiated participants with high levels of autistic-like traits from those with low trait levels. All four features were less masculinised for high-trait males compared to low-trait males. Three of four features were less feminised for high-trait females compared to low-trait females. One feature was, however, not consistent with the general pattern of findings and was more feminised among females who reported more autistic-like traits. Based on the four significantly different facial distances for each sex, discriminant function analysis correctly classified 89.7% of the males and 88.9% of the females into their respective high- and low-trait groups. CONCLUSIONS: The current data provide support for Bejerot et al.'s androgyny account since males and females with high levels of autistic-like traits generally showed less sex-typical facial features than individuals with low levels of autistic-like traits. En ligne : http://dx.doi.org/10.1186/s11689-015-9109-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=347
in Journal of Neurodevelopmental Disorders > 7-1 (December 2015) . - p.14[article] Sexually dimorphic facial features vary according to level of autistic-like traits in the general population [Texte imprimé et/ou numérique] / S. Z. GILANI, Auteur ; D. W. TAN, Auteur ; S. N. RUSSELL-SMITH, Auteur ; M. T. MAYBERY, Auteur ; A. MIAN, Auteur ; P. R. EASTWOOD, Auteur ; F. SHAFAIT, Auteur ; M. GOONEWARDENE, Auteur ; Andrew J. O. WHITEHOUSE, Auteur . - p.14.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 7-1 (December 2015) . - p.14
Mots-clés : Autism Autism spectrum disorder Facial features Femininity Gender defiant disorder Hypermasculinisation Masculinity Raine study Index. décimale : PER Périodiques Résumé : BACKGROUND: In a recent study, Bejerot et al. observed that several physical features (including faces) of individuals with an autism spectrum disorder (ASD) were more androgynous than those of their typically developed counterparts, suggesting that ASD may be understood as a 'gender defiant' disorder. These findings are difficult to reconcile with the hypermasculinisation account, which proposes that ASD may be an exaggerated form of cognitive and biological masculinity. The current study extended these data by first identifying six facial features that best distinguished males and females from the general population and then examining these features in typically developing groups selected for high and low levels of autistic-like traits. METHODS: In study 1, three-dimensional (3D) facial images were collected from 208 young adult males and females recruited from the general population. Twenty-three facial distances were measured from these images and a gender classification and scoring algorithm was employed to identify a set of six facial features that most effectively distinguished male from female faces. In study 2, measurements of these six features were compared for groups of young adults selected for high (n = 46) or low (n = 66) levels of autistic-like traits. RESULTS: For each sex, four of the six sexually dimorphic facial distances significantly differentiated participants with high levels of autistic-like traits from those with low trait levels. All four features were less masculinised for high-trait males compared to low-trait males. Three of four features were less feminised for high-trait females compared to low-trait females. One feature was, however, not consistent with the general pattern of findings and was more feminised among females who reported more autistic-like traits. Based on the four significantly different facial distances for each sex, discriminant function analysis correctly classified 89.7% of the males and 88.9% of the females into their respective high- and low-trait groups. CONCLUSIONS: The current data provide support for Bejerot et al.'s androgyny account since males and females with high levels of autistic-like traits generally showed less sex-typical facial features than individuals with low levels of autistic-like traits. En ligne : http://dx.doi.org/10.1186/s11689-015-9109-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=347 Atypical gaze patterns to facial feature areas in autism spectrum disorders reveal age and culture effects: A meta-analysis of eye-tracking studies / X. MA in Autism Research, 14-12 (December 2021)
[article]
Titre : Atypical gaze patterns to facial feature areas in autism spectrum disorders reveal age and culture effects: A meta-analysis of eye-tracking studies Type de document : Texte imprimé et/ou numérique Auteurs : X. MA, Auteur ; H. GU, Auteur ; J. ZHAO, Auteur Article en page(s) : p.2625-2639 Langues : Anglais (eng) Mots-clés : Adult Autism Spectrum Disorder/complications Child Eye-Tracking Technology Facial Recognition Fixation, Ocular Humans Mouth autism spectrum disorder culture development face processing facial features meta-analysis Index. décimale : PER Périodiques Résumé : Children and adults with autism spectrum disorder (ASD) often present with atypical gaze patterns to others' faces, a finding substantiated throughout the literature. Yet, a quantification of atypical gaze patterns to different facial regions (e.g., eyes versus mouth) in ASD remains controversial. Also few study has investigated how age and culture impacted the pattern of gaze abnormalities in ASD. This research therefore conducted a meta-analysis of eye-tracking studies to evaluate age and culture effect on atypical gaze patterns of face processing in ASD. A total of 75 articles (91 studies) and 4209 individuals (ASD: 2027; controls: 2182) across all age ranges (i.e., childhood through to adulthood) from both Eastern and Western cultures were included in this meta-analysis. Individuals with ASD yielded shorter fixation durations to the eyes than individuals without ASD. Group differences in the time spent fixating on the eyes were not modulated by age, but affected by culture. Effect size in the eastern culture was larger than that in the western culture. In contrast, group differences on time spent looking at the mouth were not significant, but changed with age and modulated by culture. Relative to the neurotypical controls, Western individuals with ASD spent more time looking at the mouth from school age, whereas Eastern individuals with ASD did not gaze longer on mouth until adulthood. These results add to the body of evidence supporting atypical gaze behaviors to eyes in ASD and provide new insights into a potential mouth compensation strategy that develops with age in ASD. LAY SUMMARY: Individuals with autism spectrum disorder (ASD) often show atypical gaze patterns when looking at others' faces compared to neurotypical individuals. This paper examines the role of age and culture on pattern of gaze abnormalities in individuals with ASD. Results show that reduction of gaze on eyes in ASD is stable across all ages and cultures, while increase of gaze on mouth emerges as individuals with ASD get older. The findings provide a developmental insight to the gaze patterns on the autism spectrum across culture. En ligne : http://dx.doi.org/10.1002/aur.2607 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=450
in Autism Research > 14-12 (December 2021) . - p.2625-2639[article] Atypical gaze patterns to facial feature areas in autism spectrum disorders reveal age and culture effects: A meta-analysis of eye-tracking studies [Texte imprimé et/ou numérique] / X. MA, Auteur ; H. GU, Auteur ; J. ZHAO, Auteur . - p.2625-2639.
Langues : Anglais (eng)
in Autism Research > 14-12 (December 2021) . - p.2625-2639
Mots-clés : Adult Autism Spectrum Disorder/complications Child Eye-Tracking Technology Facial Recognition Fixation, Ocular Humans Mouth autism spectrum disorder culture development face processing facial features meta-analysis Index. décimale : PER Périodiques Résumé : Children and adults with autism spectrum disorder (ASD) often present with atypical gaze patterns to others' faces, a finding substantiated throughout the literature. Yet, a quantification of atypical gaze patterns to different facial regions (e.g., eyes versus mouth) in ASD remains controversial. Also few study has investigated how age and culture impacted the pattern of gaze abnormalities in ASD. This research therefore conducted a meta-analysis of eye-tracking studies to evaluate age and culture effect on atypical gaze patterns of face processing in ASD. A total of 75 articles (91 studies) and 4209 individuals (ASD: 2027; controls: 2182) across all age ranges (i.e., childhood through to adulthood) from both Eastern and Western cultures were included in this meta-analysis. Individuals with ASD yielded shorter fixation durations to the eyes than individuals without ASD. Group differences in the time spent fixating on the eyes were not modulated by age, but affected by culture. Effect size in the eastern culture was larger than that in the western culture. In contrast, group differences on time spent looking at the mouth were not significant, but changed with age and modulated by culture. Relative to the neurotypical controls, Western individuals with ASD spent more time looking at the mouth from school age, whereas Eastern individuals with ASD did not gaze longer on mouth until adulthood. These results add to the body of evidence supporting atypical gaze behaviors to eyes in ASD and provide new insights into a potential mouth compensation strategy that develops with age in ASD. LAY SUMMARY: Individuals with autism spectrum disorder (ASD) often show atypical gaze patterns when looking at others' faces compared to neurotypical individuals. This paper examines the role of age and culture on pattern of gaze abnormalities in individuals with ASD. Results show that reduction of gaze on eyes in ASD is stable across all ages and cultures, while increase of gaze on mouth emerges as individuals with ASD get older. The findings provide a developmental insight to the gaze patterns on the autism spectrum across culture. En ligne : http://dx.doi.org/10.1002/aur.2607 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=450