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
-
Détail de l'auteur
Auteur Johan WAGEMANS |
Documents disponibles écrits par cet auteur (21)
Faire une suggestion Affiner la recherche
Reduced accuracy and sensitivity in the perception of emotional facial expressions in individuals with high autism spectrum traits / Ervin POLJAC in Autism, 17-6 (November 2013)
[article]
Titre : Reduced accuracy and sensitivity in the perception of emotional facial expressions in individuals with high autism spectrum traits Type de document : Texte imprimé et/ou numérique Auteurs : Ervin POLJAC, Auteur ; Edita POLJAC, Auteur ; Johan WAGEMANS, Auteur Année de publication : 2013 Article en page(s) : p.668-680 Langues : Anglais (eng) Mots-clés : Autism spectrum quotient Broader autistic phenotype Face perception Emotion recognition Facial expression Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is among other things characterized by specific impairments in emotion processing. It is not clear, however, to what extent the typical decline in affective functioning is related to the specific autistic traits. We employed The Autism Spectrum-Quotient (AQ) to quantify autistic traits in a group of 500 healthy individuals and investigate whether we could detect similar difficulties in the perception of emotional expressions in a broader autistic phenotype. The group with high AQ score was less accurate and needed higher emotional content to recognize emotions of anger, disgust, and sadness. Our findings demonstrate a selective impairment in identification of emotional facial expressions in healthy individuals that is primarily related to the extent of autistic traits. En ligne : http://dx.doi.org/10.1177/1362361312455703 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=218
in Autism > 17-6 (November 2013) . - p.668-680[article] Reduced accuracy and sensitivity in the perception of emotional facial expressions in individuals with high autism spectrum traits [Texte imprimé et/ou numérique] / Ervin POLJAC, Auteur ; Edita POLJAC, Auteur ; Johan WAGEMANS, Auteur . - 2013 . - p.668-680.
Langues : Anglais (eng)
in Autism > 17-6 (November 2013) . - p.668-680
Mots-clés : Autism spectrum quotient Broader autistic phenotype Face perception Emotion recognition Facial expression Index. décimale : PER Périodiques Résumé : Autism spectrum disorder (ASD) is among other things characterized by specific impairments in emotion processing. It is not clear, however, to what extent the typical decline in affective functioning is related to the specific autistic traits. We employed The Autism Spectrum-Quotient (AQ) to quantify autistic traits in a group of 500 healthy individuals and investigate whether we could detect similar difficulties in the perception of emotional expressions in a broader autistic phenotype. The group with high AQ score was less accurate and needed higher emotional content to recognize emotions of anger, disgust, and sadness. Our findings demonstrate a selective impairment in identification of emotional facial expressions in healthy individuals that is primarily related to the extent of autistic traits. En ligne : http://dx.doi.org/10.1177/1362361312455703 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=218 Reduced Recognition of Dynamic Facial Emotional Expressions and Emotion-Specific Response Bias in Children with an Autism Spectrum Disorder / Kris EVERS in Journal of Autism and Developmental Disorders, 45-6 (June 2015)
[article]
Titre : Reduced Recognition of Dynamic Facial Emotional Expressions and Emotion-Specific Response Bias in Children with an Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Kris EVERS, Auteur ; Jean STEYAERT, Auteur ; Ilse NOENS, Auteur ; Johan WAGEMANS, Auteur Article en page(s) : p.1774-1784 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder (ASD) Dynamic facial expressions Emotion recognition Face perception Response bias Theory of mind Index. décimale : PER Périodiques Résumé : Emotion labelling was evaluated in two matched samples of 6–14-year old children with and without an autism spectrum disorder (ASD; N = 45 and N = 50, resp.), using six dynamic facial expressions. The Emotion Recognition Task proved to be valuable demonstrating subtle emotion recognition difficulties in ASD, as we showed a general poorer emotion recognition performance, in addition to some emotion-specific impairments in the ASD group. Participants’ preference for selecting a certain emotion label, irrespective of the stimulus presented, played an important role in our results: response bias-corrected data still showed an overall decreased emotion recognition performance in ASD, but no emotion-specific impairments anymore. Moreover, ASD traits and empathy were correlated with emotion recognition performance. En ligne : http://dx.doi.org/10.1007/s10803-014-2337-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=259
in Journal of Autism and Developmental Disorders > 45-6 (June 2015) . - p.1774-1784[article] Reduced Recognition of Dynamic Facial Emotional Expressions and Emotion-Specific Response Bias in Children with an Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Kris EVERS, Auteur ; Jean STEYAERT, Auteur ; Ilse NOENS, Auteur ; Johan WAGEMANS, Auteur . - p.1774-1784.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 45-6 (June 2015) . - p.1774-1784
Mots-clés : Autism spectrum disorder (ASD) Dynamic facial expressions Emotion recognition Face perception Response bias Theory of mind Index. décimale : PER Périodiques Résumé : Emotion labelling was evaluated in two matched samples of 6–14-year old children with and without an autism spectrum disorder (ASD; N = 45 and N = 50, resp.), using six dynamic facial expressions. The Emotion Recognition Task proved to be valuable demonstrating subtle emotion recognition difficulties in ASD, as we showed a general poorer emotion recognition performance, in addition to some emotion-specific impairments in the ASD group. Participants’ preference for selecting a certain emotion label, irrespective of the stimulus presented, played an important role in our results: response bias-corrected data still showed an overall decreased emotion recognition performance in ASD, but no emotion-specific impairments anymore. Moreover, ASD traits and empathy were correlated with emotion recognition performance. En ligne : http://dx.doi.org/10.1007/s10803-014-2337-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=259 A review of behavioural and electrophysiological studies on auditory processing and speech perception in autism spectrum disorders / Birgitt HAESEN in Research in Autism Spectrum Disorders, 5-2 (April-June 2011)
[article]
Titre : A review of behavioural and electrophysiological studies on auditory processing and speech perception in autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Birgitt HAESEN, Auteur ; Bart BOETS, Auteur ; Johan WAGEMANS, Auteur Année de publication : 2011 Article en page(s) : p.701-714 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Auditory processing Speech perception Local processing Global processing Index. décimale : PER Périodiques Résumé : This literature review aims to interpret behavioural and electrophysiological studies addressing auditory processing in children and adults with autism spectrum disorder (ASD). Data have been organised according to the applied methodology (behavioural versus electrophysiological studies) and according to stimulus complexity (pure versus complex tones versus speech sounds). In line with the weak central coherence (WCC) theory of autism we aimed to investigate whether individuals with ASD show a more locally and less globally oriented processing style in the auditory modality. To avoid the possible confound of stimulus complexity, this influence was taken into account as an additional hypothesis. The review reveals that the identification and discrimination of isolated acoustic features (in particular pitch processing) is generally intact or enhanced in individuals with ASD, for pure as well as for complex tones and speech sounds. It thus appears that the local processing advantage is not influenced by stimulus complexity. Individuals with ASD are also less susceptible to global interference of speech-like material. A deficit in global auditory processing, however, is less universally confirmed. We propose that the observed pattern of auditory enhancements and deficits in ASD may be related to an atypical pattern of right hemisphere dominance. As the right and left hemisphere are relatively more specialized in spectral versus temporal auditory processing, respectively, right hemisphere dominance in ASD could provoke enhanced pitch and vowel processing, whereas left hemisphere deficiencies might explain speech perception problems and temporal processing deficits. En ligne : http://dx.doi.org/10.1016/j.rasd.2010.11.006 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=114
in Research in Autism Spectrum Disorders > 5-2 (April-June 2011) . - p.701-714[article] A review of behavioural and electrophysiological studies on auditory processing and speech perception in autism spectrum disorders [Texte imprimé et/ou numérique] / Birgitt HAESEN, Auteur ; Bart BOETS, Auteur ; Johan WAGEMANS, Auteur . - 2011 . - p.701-714.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 5-2 (April-June 2011) . - p.701-714
Mots-clés : Autism spectrum disorder Auditory processing Speech perception Local processing Global processing Index. décimale : PER Périodiques Résumé : This literature review aims to interpret behavioural and electrophysiological studies addressing auditory processing in children and adults with autism spectrum disorder (ASD). Data have been organised according to the applied methodology (behavioural versus electrophysiological studies) and according to stimulus complexity (pure versus complex tones versus speech sounds). In line with the weak central coherence (WCC) theory of autism we aimed to investigate whether individuals with ASD show a more locally and less globally oriented processing style in the auditory modality. To avoid the possible confound of stimulus complexity, this influence was taken into account as an additional hypothesis. The review reveals that the identification and discrimination of isolated acoustic features (in particular pitch processing) is generally intact or enhanced in individuals with ASD, for pure as well as for complex tones and speech sounds. It thus appears that the local processing advantage is not influenced by stimulus complexity. Individuals with ASD are also less susceptible to global interference of speech-like material. A deficit in global auditory processing, however, is less universally confirmed. We propose that the observed pattern of auditory enhancements and deficits in ASD may be related to an atypical pattern of right hemisphere dominance. As the right and left hemisphere are relatively more specialized in spectral versus temporal auditory processing, respectively, right hemisphere dominance in ASD could provoke enhanced pitch and vowel processing, whereas left hemisphere deficiencies might explain speech perception problems and temporal processing deficits. En ligne : http://dx.doi.org/10.1016/j.rasd.2010.11.006 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=114 Spatial Frequency Priming of Scene Perception in Adolescents With and Without ASD / Steven VANMARCKE in Journal of Autism and Developmental Disorders, 47-7 (July 2017)
[article]
Titre : Spatial Frequency Priming of Scene Perception in Adolescents With and Without ASD Type de document : Texte imprimé et/ou numérique Auteurs : Steven VANMARCKE, Auteur ; Ilse NOENS, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur Article en page(s) : p.2023-2038 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders Scene perception Coarse-to-fine processing Spatial frequency Local–global information Index. décimale : PER Périodiques Résumé : While most typically developing (TD) participants have a coarse-to-fine processing style, people with autism spectrum disorder (ASD) seem to be less globally and more locally biased when processing visual information. The stimulus-specific spatial frequency content might be directly relevant to determine this temporal hierarchy of visual information processing in people with and without ASD. We implemented a semantic priming task in which (in)congruent coarse and/or fine spatial information preceded target categorization. Our results indicated that adolescents with ASD made more categorization errors than TD adolescents and needed more time to process the prime stimuli. Simultaneously, however, our findings argued for a processing advantage in ASD, when the prime stimulus contains detailed spatial information and presentation time permits explicit visual processing. En ligne : https://doi.org/10.1007/s10803-017-3123-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=313
in Journal of Autism and Developmental Disorders > 47-7 (July 2017) . - p.2023-2038[article] Spatial Frequency Priming of Scene Perception in Adolescents With and Without ASD [Texte imprimé et/ou numérique] / Steven VANMARCKE, Auteur ; Ilse NOENS, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur . - p.2023-2038.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 47-7 (July 2017) . - p.2023-2038
Mots-clés : Autism spectrum disorders Scene perception Coarse-to-fine processing Spatial frequency Local–global information Index. décimale : PER Périodiques Résumé : While most typically developing (TD) participants have a coarse-to-fine processing style, people with autism spectrum disorder (ASD) seem to be less globally and more locally biased when processing visual information. The stimulus-specific spatial frequency content might be directly relevant to determine this temporal hierarchy of visual information processing in people with and without ASD. We implemented a semantic priming task in which (in)congruent coarse and/or fine spatial information preceded target categorization. Our results indicated that adolescents with ASD made more categorization errors than TD adolescents and needed more time to process the prime stimuli. Simultaneously, however, our findings argued for a processing advantage in ASD, when the prime stimulus contains detailed spatial information and presentation time permits explicit visual processing. En ligne : https://doi.org/10.1007/s10803-017-3123-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=313 Ultra-Rapid Categorization of Meaningful Real-Life Scenes in Adults With and Without ASD / Steven VANMARCKE in Journal of Autism and Developmental Disorders, 46-2 (February 2016)
[article]
Titre : Ultra-Rapid Categorization of Meaningful Real-Life Scenes in Adults With and Without ASD Type de document : Texte imprimé et/ou numérique Auteurs : Steven VANMARCKE, Auteur ; Ruth HALLEN, Auteur ; Kris EVERS, Auteur ; Ilse NOENS, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur Année de publication : 2016 Article en page(s) : p.450-466 Langues : Anglais (eng) Mots-clés : Catégorisation Autism spectrum disorder Vision research Ultra-rapid categorization Theory of mind Reverse hierarchy theory Index. décimale : PER Périodiques Résumé : In comparison to typically developing (TD) individuals, people with autism spectrum disorder (ASD) appear to be worse in the fast extraction of the global meaning of a situation or picture. Ultra-rapid categorization [paradigm developed by Thorpe et al. (Nature 381:520–522, 1996)] involves such global information processing. We therefore tested a group of adults with and without ASD, without intellectual disability, on a set of ultra-rapid categorization tasks. Individuals with ASD performed equally well as TD individuals except when the task required the categorization of social interactions. These results argue against a general deficit in ultra-rapid gist perception in people with ASD, while suggesting a more specific problem with the fast processing of information about social relations. En ligne : http://dx.doi.org/10.1007/s10803-015-2583-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=280
in Journal of Autism and Developmental Disorders > 46-2 (February 2016) . - p.450-466[article] Ultra-Rapid Categorization of Meaningful Real-Life Scenes in Adults With and Without ASD [Texte imprimé et/ou numérique] / Steven VANMARCKE, Auteur ; Ruth HALLEN, Auteur ; Kris EVERS, Auteur ; Ilse NOENS, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur . - 2016 . - p.450-466.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 46-2 (February 2016) . - p.450-466
Mots-clés : Catégorisation Autism spectrum disorder Vision research Ultra-rapid categorization Theory of mind Reverse hierarchy theory Index. décimale : PER Périodiques Résumé : In comparison to typically developing (TD) individuals, people with autism spectrum disorder (ASD) appear to be worse in the fast extraction of the global meaning of a situation or picture. Ultra-rapid categorization [paradigm developed by Thorpe et al. (Nature 381:520–522, 1996)] involves such global information processing. We therefore tested a group of adults with and without ASD, without intellectual disability, on a set of ultra-rapid categorization tasks. Individuals with ASD performed equally well as TD individuals except when the task required the categorization of social interactions. These results argue against a general deficit in ultra-rapid gist perception in people with ASD, while suggesting a more specific problem with the fast processing of information about social relations. En ligne : http://dx.doi.org/10.1007/s10803-015-2583-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=280 Visual Search in ASD: Instructed Versus Spontaneous Local and Global Processing / Ruth VAN DER HALLEN in Journal of Autism and Developmental Disorders, 46-9 (September 2016)
Permalink