Mirror me: Imitative responses in adults with autism / Odette SCHUNKE in Autism, 20-2 (February 2016)  

Public ISBD [article]  inAutism > 20-2 (February 2016) . - p.134-144 Titre : Mirror me: Imitative responses in adults with autism Type de document : Texte imprimé et/ou numérique Auteurs : Odette SCHUNKE, Auteur ; Daniel SCHOTTLE, Auteur ; Eik VETTORAZZI, Auteur ; Valerie BRANDT, Auteur ; Ursula KAHL, Auteur ; Tobias BÄUMER, Auteur ; Christos GANOS, Auteur ; Nicole DAVID, Auteur ; Ina PEIKER, Auteur ; Andreas K ENGEL, Auteur ; Marcel BRASS, Auteur ; Alexander MUNCHAU, Auteur Article en page(s) : p.134-144 Langues : Anglais (eng) Mots-clés : autism  imitation  interference  mirror neurons  reaction times Index. décimale : PER Périodiques Résumé : Dysfunctions of the human mirror neuron system have been postulated to underlie some deficits in autism spectrum disorders including poor imitative performance and impaired social skills. Using three reaction time experiments addressing mirror neuron system functions under simple and complex conditions, we examined 20 adult autism spectrum disorder participants and 20 healthy controls matched for age, gender and education. Participants performed simple finger-lifting movements in response to (1) biological finger and non-biological dot movement stimuli, (2) acoustic stimuli and (3) combined visual-acoustic stimuli with different contextual (compatible/incompatible) and temporal (simultaneous/asynchronous) relation. Mixed model analyses revealed slower reaction times in autism spectrum disorder. Both groups responded faster to biological compared to non-biological stimuli (Experiment 1) implying intact processing advantage for biological stimuli in autism spectrum disorder. In Experiment 3, both groups had similar ‘interference effects’ when stimuli were presented simultaneously. However, autism spectrum disorder participants had abnormally slow responses particularly when incompatible stimuli were presented consecutively. Our results suggest imitative control deficits rather than global imitative system impairments. En ligne : http://dx.doi.org/10.1177/1362361315571757 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=278 [article] Mirror me: Imitative responses in adults with autism [Texte imprimé et/ou numérique] / Odette SCHUNKE, Auteur ; Daniel SCHOTTLE, Auteur ; Eik VETTORAZZI, Auteur ; Valerie BRANDT, Auteur ; Ursula KAHL, Auteur ; Tobias BÄUMER, Auteur ; Christos GANOS, Auteur ; Nicole DAVID, Auteur ; Ina PEIKER, Auteur ; Andreas K ENGEL, Auteur ; Marcel BRASS, Auteur ; Alexander MUNCHAU, Auteur . - p.134-144. Langues : Anglais (eng) in Autism > 20-2 (February 2016) . - p.134-144 Mots-clés : autism  imitation  interference  mirror neurons  reaction times Index. décimale : PER Périodiques Résumé : Dysfunctions of the human mirror neuron system have been postulated to underlie some deficits in autism spectrum disorders including poor imitative performance and impaired social skills. Using three reaction time experiments addressing mirror neuron system functions under simple and complex conditions, we examined 20 adult autism spectrum disorder participants and 20 healthy controls matched for age, gender and education. Participants performed simple finger-lifting movements in response to (1) biological finger and non-biological dot movement stimuli, (2) acoustic stimuli and (3) combined visual-acoustic stimuli with different contextual (compatible/incompatible) and temporal (simultaneous/asynchronous) relation. Mixed model analyses revealed slower reaction times in autism spectrum disorder. Both groups responded faster to biological compared to non-biological stimuli (Experiment 1) implying intact processing advantage for biological stimuli in autism spectrum disorder. In Experiment 3, both groups had similar ‘interference effects’ when stimuli were presented simultaneously. However, autism spectrum disorder participants had abnormally slow responses particularly when incompatible stimuli were presented consecutively. Our results suggest imitative control deficits rather than global imitative system impairments. En ligne : http://dx.doi.org/10.1177/1362361315571757 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=278

Right Temporoparietal Gray Matter Predicts Accuracy of Social Perception in the Autism Spectrum / Nicole DAVID in Journal of Autism and Developmental Disorders, 44-6 (June 2014)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 44-6 (June 2014) . - p.1433-1446 Titre : Right Temporoparietal Gray Matter Predicts Accuracy of Social Perception in the Autism Spectrum Type de document : Texte imprimé et/ou numérique Auteurs : Nicole DAVID, Auteur ; Johannes SCHULTZ, Auteur ; Elizabeth MILNE, Auteur ; Odette SCHUNKE, Auteur ; Daniel SCHOTTLE, Auteur ; Alexander MUNCHAU, Auteur ; Markus SIEGEL, Auteur ; Kai VOGELEY, Auteur ; Andreas K. ENGEL, Auteur Article en page(s) : p.1433-1446 Langues : Anglais (eng) Mots-clés : Autism  Asperger syndrome  Motion coherence  Animacy  Social perception  Voxel-based morphometry Index. décimale : PER Périodiques Résumé : Individuals with an autism spectrum disorder (ASD) show hallmark deficits in social perception. These difficulties might also reflect fundamental deficits in integrating visual signals. We contrasted predictions of a social perception and a spatial–temporal integration deficit account. Participants with ASD and matched controls performed two tasks: the first required spatiotemporal integration of global motion signals without social meaning, the second required processing of socially relevant local motion. The ASD group only showed differences to controls in social motion evaluation. In addition, gray matter volume in the temporal–parietal junction correlated positively with accuracy in social motion perception in the ASD group. Our findings suggest that social–perceptual difficulties in ASD cannot be reduced to deficits in spatial–temporal integration. En ligne : http://dx.doi.org/10.1007/s10803-013-2008-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=233 [article] Right Temporoparietal Gray Matter Predicts Accuracy of Social Perception in the Autism Spectrum [Texte imprimé et/ou numérique] / Nicole DAVID, Auteur ; Johannes SCHULTZ, Auteur ; Elizabeth MILNE, Auteur ; Odette SCHUNKE, Auteur ; Daniel SCHOTTLE, Auteur ; Alexander MUNCHAU, Auteur ; Markus SIEGEL, Auteur ; Kai VOGELEY, Auteur ; Andreas K. ENGEL, Auteur . - p.1433-1446. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 44-6 (June 2014) . - p.1433-1446 Mots-clés : Autism  Asperger syndrome  Motion coherence  Animacy  Social perception  Voxel-based morphometry Index. décimale : PER Périodiques Résumé : Individuals with an autism spectrum disorder (ASD) show hallmark deficits in social perception. These difficulties might also reflect fundamental deficits in integrating visual signals. We contrasted predictions of a social perception and a spatial–temporal integration deficit account. Participants with ASD and matched controls performed two tasks: the first required spatiotemporal integration of global motion signals without social meaning, the second required processing of socially relevant local motion. The ASD group only showed differences to controls in social motion evaluation. In addition, gray matter volume in the temporal–parietal junction correlated positively with accuracy in social motion perception in the ASD group. Our findings suggest that social–perceptual difficulties in ASD cannot be reduced to deficits in spatial–temporal integration. En ligne : http://dx.doi.org/10.1007/s10803-013-2008-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=233

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