From Sensory Perception to Lexical-Semantic Processing: An ERP Study in Non-Verbal Children with Autism.

摘要: This study examines electrocortical activity associated with visual and auditory sensory perception lexical-semantic processing in nonverbal (NV) or minimally-verbal (MV) children Autism Spectrum Disorder (ASD). Currently, there is no agreement on whether these comprehend incoming linguistic information their comparable to that of typically developing children. Event-related potentials (ERPs) 10 NV/MV ASD neurotypical were recorded during a picture-word matching paradigm. Atypical ERP responses evident at all levels ASD. Basic perceptual was delayed both domains but overall similar amplitude typically-developing However, significant differences between groups found the level, suggesting more atypical higher-order processes. The results suggest although basic relatively preserved ASD, higher processing, including lexical- semantic functions, are impaired. use passive paradigms do not require active participant response shows potential for assessment non-compliant populations such as