Enhanced Access to Early Visual Processing of Perceptual Simultaneity in Autism Spectrum Disorders / Christine M. FALTER in Journal of Autism and Developmental Disorders, 43-8 (August 2013)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 43-8 (August 2013) . - p.1857-1866 Titre : Enhanced Access to Early Visual Processing of Perceptual Simultaneity in Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Christine M. FALTER, Auteur ; Sven BRAEUTIGAM, Auteur ; Roger NATHAN, Auteur ; Sarah J. CARRINGTON, Auteur ; Anthony J. BAILEY, Auteur Article en page(s) : p.1857-1866 Langues : Anglais (eng) Mots-clés : High-functioning autism  Asperger syndrome  Event timing  Visual simultaneity  Magnetoencephalography Index. décimale : PER Périodiques Résumé : We compared judgements of the simultaneity or asynchrony of visual stimuli in individuals with autism spectrum disorders (ASD) and typically-developing controls using Magnetoencephalography (MEG). Two vertical bars were presented simultaneously or non-simultaneously with two different stimulus onset delays. Participants with ASD distinguished significantly better between real simultaneity (0 ms delay between two stimuli) and apparent simultaneity (17 ms delay between two stimuli) than controls. In line with the increased sensitivity, event-related MEG activity showed increased differential responses for simultaneity versus apparent simultaneity. The strongest evoked potentials, observed over occipital cortices at about 130 ms, were correlated with performance differences in the ASD group only. Superior access to early visual brain processes in ASD might underlie increased resolution of visual events in perception. En ligne : http://dx.doi.org/10.1007/s10803-012-1735-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=205 [article] Enhanced Access to Early Visual Processing of Perceptual Simultaneity in Autism Spectrum Disorders [Texte imprimé et/ou numérique] / Christine M. FALTER, Auteur ; Sven BRAEUTIGAM, Auteur ; Roger NATHAN, Auteur ; Sarah J. CARRINGTON, Auteur ; Anthony J. BAILEY, Auteur . - p.1857-1866. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 43-8 (August 2013) . - p.1857-1866 Mots-clés : High-functioning autism  Asperger syndrome  Event timing  Visual simultaneity  Magnetoencephalography Index. décimale : PER Périodiques Résumé : We compared judgements of the simultaneity or asynchrony of visual stimuli in individuals with autism spectrum disorders (ASD) and typically-developing controls using Magnetoencephalography (MEG). Two vertical bars were presented simultaneously or non-simultaneously with two different stimulus onset delays. Participants with ASD distinguished significantly better between real simultaneity (0 ms delay between two stimuli) and apparent simultaneity (17 ms delay between two stimuli) than controls. In line with the increased sensitivity, event-related MEG activity showed increased differential responses for simultaneity versus apparent simultaneity. The strongest evoked potentials, observed over occipital cortices at about 130 ms, were correlated with performance differences in the ASD group only. Superior access to early visual brain processes in ASD might underlie increased resolution of visual events in perception. En ligne : http://dx.doi.org/10.1007/s10803-012-1735-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=205

Impaired and superior mirror symmetry perception in autism / Christine M. FALTER in Autism, 17-1 (January 2013)  

Public ISBD [article]  inAutism > 17-1 (January 2013) . - p.117-118 Titre : Impaired and superior mirror symmetry perception in autism Type de document : Texte imprimé et/ou numérique Auteurs : Christine M. FALTER, Auteur Année de publication : 2013 Article en page(s) : p.117-118 Langues : Anglais (eng) Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/1362361312438618 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=192 [article] Impaired and superior mirror symmetry perception in autism [Texte imprimé et/ou numérique] / Christine M. FALTER, Auteur . - 2013 . - p.117-118. Langues : Anglais (eng) in Autism > 17-1 (January 2013) . - p.117-118 Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/1362361312438618 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=192

Male Brains, Androgen, and the Cognitive Profile in Autism: Convergent Evidence from 2D:4D and Congenital Adrenal Hyperplasia / Christine M. FALTER in Journal of Autism and Developmental Disorders, 38-5 (May 2008)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 38-5 (May 2008) . - p.997-998 Titre : Male Brains, Androgen, and the Cognitive Profile in Autism: Convergent Evidence from 2D:4D and Congenital Adrenal Hyperplasia Type de document : Texte imprimé et/ou numérique Auteurs : Christine M. FALTER, Auteur ; Kate C. PLAISTED, Auteur ; Greg DAVIS, Auteur Année de publication : 2008 Article en page(s) : p.997-998 Langues : Anglais (eng) Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1007/s10803-008-0552-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=418 [article] Male Brains, Androgen, and the Cognitive Profile in Autism: Convergent Evidence from 2D:4D and Congenital Adrenal Hyperplasia [Texte imprimé et/ou numérique] / Christine M. FALTER, Auteur ; Kate C. PLAISTED, Auteur ; Greg DAVIS, Auteur . - 2008 . - p.997-998. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 38-5 (May 2008) . - p.997-998 Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1007/s10803-008-0552-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=418

Object-based attention benefits reveal selective abnormalities of visual integration in autism / Christine M. FALTER in Autism Research, 3-3 (June 2010)  

Public ISBD [article]  inAutism Research > 3-3 (June 2010) . - p.128-136 Titre : Object-based attention benefits reveal selective abnormalities of visual integration in autism Type de document : Texte imprimé et/ou numérique Auteurs : Christine M. FALTER, Auteur ; Greg DAVIS, Auteur ; Kate C. PLAISTED-GRANT, Auteur Année de publication : 2010 Article en page(s) : p.128-136 Langues : Anglais (eng) Mots-clés : autism Gestalt grouping top-down Index. décimale : PER Périodiques Résumé : A pervasive integration deficit could provide a powerful and elegant account of cognitive processing in autism spectrum disorders (ASD). However, in the case of visual Gestalt grouping, typically assessed by tasks that require participants explicitly to introspect on their own grouping perception, clear evidence for such a deficit remains elusive. To resolve this issue, we adopt an index of Gestalt grouping from the object-based attention literature that does not require participants to assess their own grouping perception. Children with ASD and mental- and chronological-age matched typically developing children (TD) performed speeded orientation discriminations of two diagonal lines. The lines were superimposed on circles that were either grouped together or segmented on the basis of color, proximity or these two dimensions in competition. The magnitude of performance benefits evident for grouped circles, relative to ungrouped circles, provided an index of grouping under various conditions. Children with ASD showed comparable grouping by proximity to the TD group, but reduced grouping by similarity. ASD seems characterized by a selective bias away from grouping by similarity combined with typical levels of grouping by proximity, rather than by a pervasive integration deficit. En ligne : http://dx.doi.org/10.1002/aur.134 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=107 [article] Object-based attention benefits reveal selective abnormalities of visual integration in autism [Texte imprimé et/ou numérique] / Christine M. FALTER, Auteur ; Greg DAVIS, Auteur ; Kate C. PLAISTED-GRANT, Auteur . - 2010 . - p.128-136. Langues : Anglais (eng) in Autism Research > 3-3 (June 2010) . - p.128-136 Mots-clés : autism Gestalt grouping top-down Index. décimale : PER Périodiques Résumé : A pervasive integration deficit could provide a powerful and elegant account of cognitive processing in autism spectrum disorders (ASD). However, in the case of visual Gestalt grouping, typically assessed by tasks that require participants explicitly to introspect on their own grouping perception, clear evidence for such a deficit remains elusive. To resolve this issue, we adopt an index of Gestalt grouping from the object-based attention literature that does not require participants to assess their own grouping perception. Children with ASD and mental- and chronological-age matched typically developing children (TD) performed speeded orientation discriminations of two diagonal lines. The lines were superimposed on circles that were either grouped together or segmented on the basis of color, proximity or these two dimensions in competition. The magnitude of performance benefits evident for grouped circles, relative to ungrouped circles, provided an index of grouping under various conditions. Children with ASD showed comparable grouping by proximity to the TD group, but reduced grouping by similarity. ASD seems characterized by a selective bias away from grouping by similarity combined with typical levels of grouping by proximity, rather than by a pervasive integration deficit. En ligne : http://dx.doi.org/10.1002/aur.134 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=107

Perception of mirror symmetry in autism spectrum disorders / Christine M. FALTER in Autism, 16-6 (November 2012)  

Public ISBD [article]  inAutism > 16-6 (November 2012) . - p.622-626 Titre : Perception of mirror symmetry in autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Christine M. FALTER, Auteur ; Anthony J. BAILEY, Auteur Année de publication : 2012 Article en page(s) : p.622-626 Langues : Anglais (eng) Mots-clés : autism  symmetry  Gestalt Index. décimale : PER Périodiques Résumé : Gestalt grouping in autism spectrum disorders (ASD) is selectively impaired for certain organization principles but for not others. Symmetry is a fundamental Gestalt principle characterizing many biological shapes. Sensitivity to symmetry was tested using the Picture Symmetry Test, which requires finding symmetry lines on pictures. Individuals with ASD showed decreased sensitivity to symmetry and a correlation of test performance with performance IQ. Decreased sensitivity for symmetry in ASD is discussed in relation to reduced visual experience of faces in early development. En ligne : http://dx.doi.org/10.1177/1362361311407353 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=184 [article] Perception of mirror symmetry in autism spectrum disorders [Texte imprimé et/ou numérique] / Christine M. FALTER, Auteur ; Anthony J. BAILEY, Auteur . - 2012 . - p.622-626. Langues : Anglais (eng) in Autism > 16-6 (November 2012) . - p.622-626 Mots-clés : autism  symmetry  Gestalt Index. décimale : PER Périodiques Résumé : Gestalt grouping in autism spectrum disorders (ASD) is selectively impaired for certain organization principles but for not others. Symmetry is a fundamental Gestalt principle characterizing many biological shapes. Sensitivity to symmetry was tested using the Picture Symmetry Test, which requires finding symmetry lines on pictures. Individuals with ASD showed decreased sensitivity to symmetry and a correlation of test performance with performance IQ. Decreased sensitivity for symmetry in ASD is discussed in relation to reduced visual experience of faces in early development. En ligne : http://dx.doi.org/10.1177/1362361311407353 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=184

Visuo-Spatial Performance in Autism: A Meta-analysis / Anne MUTH in Journal of Autism and Developmental Disorders, 44-12 (December 2014)  

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Visuo-spatial Processing in Autism—Testing the Predictions of Extreme Male Brain Theory / Christine M. FALTER in Journal of Autism and Developmental Disorders, 38-3 (March 2008)  

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