ERIC Number: EJ923277
Record Type: Journal
Publication Date: 2011-Aug
Abstractor: As Provided
Reference Count: 0
Early Processing of Emotional Faces in Children with Autism: An Event-Related Potential Study
Batty, Magali; Meaux, Emilie; Wittemeyer, Kerstin; Roge, Bernadette; Taylor, Margot J.
Journal of Experimental Child Psychology, v109 n4 p430-444 Aug 2011
Social deficits are one of the most striking manifestations of autism spectrum disorders (ASDs). Among these social deficits, the recognition and understanding of emotional facial expressions has been widely reported to be affected in ASDs. We investigated emotional face processing in children with and without autism using event-related potentials (ERPs). High-functioning children with autism (n = 15, mean age = 10.5 plus or minus 3.3 years) completed an implicit emotional task while visual ERPs were recorded. Two groups of typically developing children (chronological age-matched and verbal equivalent age-matched [both ns = 15, mean age = 7.7 plus or minus 3.8 years]) also participated in this study. The early ERP responses to faces (P1 and N170) were delayed, and the P1 was smaller in children with autism than in typically developing children of the same chronological age, revealing that the first stages of emotional face processing are affected in autism. However, when matched by verbal equivalent age, only P1 amplitude remained affected in autism. Our results suggest that the emotional and facial processing difficulties in autism could start from atypicalities in visual perceptual processes involving rapid feedback to primary visual areas and subsequent holistic processing.
Descriptors: Autism, Pervasive Developmental Disorders, Verbal Ability, Emotional Response, Cognitive Processes, Children, Brain Hemisphere Functions, Diagnostic Tests, Recognition (Psychology), Visual Perception, Feedback (Response)
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Publication Type: Journal Articles; Reports - Research
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