title: Atypical visual change processing in children with autism: an electrophysiological study.
abstract: Children with Autism Spectrum Disorder (ASD) may display atypical behaviors in reaction to unattended changes that occur in all sensory modalities. Atypical automatic auditory change processing has been highlighted in ASD via the analysis of mismatch negativity (MMN). The present study investigated visual deviancy detection in children with ASD in order to determine whether unusual reactions to change operate in other sensory modalities. Twelve children with ASD were presented with a passive visual oddball paradigm using dynamic stimuli. Compared to controls, children with ASD showed an earlier visual mismatch response, suggesting a hypersensitivity to visual deviancy. This study is thus consistent with the hypothesis of the existence of "general" atypical change detection processing in children with ASD that might contribute to their intolerance of change.
authors: UMR 930 Imagerie et Cerveau, Inserm, Université François Rabelais de Tours, CHRU de Tours, France.
authors: Helen
authors: H
authors: Cléry
authors: Frederique
authors: F
authors: Bonnet-Brilhault
authors: Pascal
authors: P
authors: Lenoir
authors: Catherine
authors: C
authors: Barthelemy
authors: Nicole
authors: N
authors: Bruneau
authors: Marie
authors: M
authors: Gomot
mesh_terms: D000293:Adolescent; D001931:Brain Mapping; D002648:Child; D002659:Child Development Disorders, Pervasive / Q000503:physiopathology*; D004569:Electroencephalography; D005074:Evoked Potentials, Visual / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D010775:Photic Stimulation; D011930:Reaction Time / Q000502:physiology; D014793:Visual Cortex / Q000503:physiopathology*; D014796:Visual Perception / Q000502:physiology*