A Specific Autistic Trait that Modulates Visuospatial Illusion Susceptibility / Elizabeth WALTER in Journal of Autism and Developmental Disorders, 39-2 (February 2009)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 39-2 (February 2009) . - p.339-349 Titre : A Specific Autistic Trait that Modulates Visuospatial Illusion Susceptibility Type de document : texte imprimé Auteurs : Elizabeth WALTER, Auteur ; Paul DASSONVILLE, Auteur ; Tiana M. BOCHSLER, Auteur Année de publication : 2009 Article en page(s) : p.339-349 Langues : Anglais (eng) Mots-clés : Autism Perception Illusions Systemizing Index. décimale : PER Périodiques Résumé : Although several accounts of autism have predicted that the disorder should be associated with a decreased susceptibility to visual illusions, previous experimental results have been mixed. This study examined whether a link between autism and illusion susceptibility can be more convincingly demonstrated by assessing the relationships between susceptibility and the extent to which several individual autistic traits are exhibited as a continuum in a population of college students. A significant relationship was observed between the systemizing trait and susceptibility to a subset of the tested illusions (the rod-and-frame, Roelofs, Ponzo and Poggendorff illusions). These results provide support for the idea that autism involves an imbalance between the processing of local and global cues, more heavily weighted toward local features than in the typically developed individual. En ligne : http://dx.doi.org/10.1007/s10803-008-0630-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=684 [article] A Specific Autistic Trait that Modulates Visuospatial Illusion Susceptibility [texte imprimé] / Elizabeth WALTER, Auteur ; Paul DASSONVILLE, Auteur ; Tiana M. BOCHSLER, Auteur . - 2009 . - p.339-349. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 39-2 (February 2009) . - p.339-349 Mots-clés : Autism Perception Illusions Systemizing Index. décimale : PER Périodiques Résumé : Although several accounts of autism have predicted that the disorder should be associated with a decreased susceptibility to visual illusions, previous experimental results have been mixed. This study examined whether a link between autism and illusion susceptibility can be more convincingly demonstrated by assessing the relationships between susceptibility and the extent to which several individual autistic traits are exhibited as a continuum in a population of college students. A significant relationship was observed between the systemizing trait and susceptibility to a subset of the tested illusions (the rod-and-frame, Roelofs, Ponzo and Poggendorff illusions). These results provide support for the idea that autism involves an imbalance between the processing of local and global cues, more heavily weighted toward local features than in the typically developed individual. En ligne : http://dx.doi.org/10.1007/s10803-008-0630-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=684

The neural basis of auditory temporal discrimination in girls with fragile X syndrome / Scott S. HALL in Journal of Neurodevelopmental Disorders, 1-1 (March 2009)  

Public ISBD [article]  inJournal of Neurodevelopmental Disorders > 1-1 (March 2009) . - p.91-9 Titre : The neural basis of auditory temporal discrimination in girls with fragile X syndrome Type de document : texte imprimé Auteurs : Scott S. HALL, Auteur ; Elizabeth WALTER, Auteur ; Elena SHERMAN, Auteur ; Fumiko HOEFT, Auteur ; Allan L. REISS, Auteur Article en page(s) : p.91-9 Langues : Anglais (eng) Mots-clés : Discrimination  Fragile X syndrome  Temporal processing  fMRI Index. décimale : PER Périodiques Résumé : Fragile X syndrome (FXS) is a common genetic disorder in which temporal processing may be impaired. To our knowledge however, no studies have examined the neural basis of temporal discrimination in individuals with FXS using functional magnetic resonance imaging (fMRI). Ten girls with fragile X syndrome and ten developmental age-matched typically developing controls performed an auditory temporal discrimination task in a 3T scanner. Girls with FXS showed significantly greater brain activation in a left-lateralized network, comprising left medial frontal gyrus, left superior and middle temporal gyrus, left cerebellum, and left brainstem (pons), when compared to a developmental age-matched typically developing group of subjects who had similar in-scanner task performance. There were no regions that showed significantly greater brain activation in the control group compared to individuals with FXS. These data indicate that networks of brain regions involved in auditory temporal processing may be dysfunctional in FXS. In particular, it is possible that girls with FXS employ left hemispheric resources to overcompensate for relative right hemispheric dysfunction. En ligne : http://dx.doi.org/10.1007/s11689-009-9007-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=341 [article] The neural basis of auditory temporal discrimination in girls with fragile X syndrome [texte imprimé] / Scott S. HALL, Auteur ; Elizabeth WALTER, Auteur ; Elena SHERMAN, Auteur ; Fumiko HOEFT, Auteur ; Allan L. REISS, Auteur . - p.91-9. Langues : Anglais (eng) in Journal of Neurodevelopmental Disorders > 1-1 (March 2009) . - p.91-9 Mots-clés : Discrimination  Fragile X syndrome  Temporal processing  fMRI Index. décimale : PER Périodiques Résumé : Fragile X syndrome (FXS) is a common genetic disorder in which temporal processing may be impaired. To our knowledge however, no studies have examined the neural basis of temporal discrimination in individuals with FXS using functional magnetic resonance imaging (fMRI). Ten girls with fragile X syndrome and ten developmental age-matched typically developing controls performed an auditory temporal discrimination task in a 3T scanner. Girls with FXS showed significantly greater brain activation in a left-lateralized network, comprising left medial frontal gyrus, left superior and middle temporal gyrus, left cerebellum, and left brainstem (pons), when compared to a developmental age-matched typically developing group of subjects who had similar in-scanner task performance. There were no regions that showed significantly greater brain activation in the control group compared to individuals with FXS. These data indicate that networks of brain regions involved in auditory temporal processing may be dysfunctional in FXS. In particular, it is possible that girls with FXS employ left hemispheric resources to overcompensate for relative right hemispheric dysfunction. En ligne : http://dx.doi.org/10.1007/s11689-009-9007-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=341

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