Children with autism spectrum disorder show atypical electroencephalographic response to processing contextual incongruencies
Amparo V. Márquez-García, Vasily A. Vakorin, Nataliia Kozhemiako, Justine R. Magnuson, Grace Iarocci, Urs Ribary, Sylvain Moreno, Sam M. Doesburg
Abstract
Children with autism spectrum disorder (ASD) experience difficulties with social communication, making it challenging to interpret contextual information that aids in accurately interpreting language. To investigate how the brain processes the contextual information and how this is different in ASD, we compared event-related potentials (ERPs) in response to processing visual and auditory congruent and incongruent information. Two groups of children participated in the study: 37 typically developing children and 15 children with ASD (age range = 6 to 12). We applied a language task involving auditory sentences describing congruent or incongruent images. We investigated two ERP components associated with language processing: the N400 and P600. Our results showed how children with ASD present significant differences in their neural responses in comparison with the TD group, even when their reaction times and correct trials are not significantly different from the TD group.