Differences in Prosocial Behaviors and Related Brain Networks in Children With Autism and Typical Development

The goal of this observational study is to compare the brain functional network between children with autism and typical development, using magnetic resonance imaging (MRI), electroencephalogram/event-related potentials(EEG/ERPs) and functional Near Infrared Spectrum(fNIRs). The main questions it aims to answer are as follows: 1. What are the differences of the functional brain network between autism and TD children? 2. What are the differences of the brain activity in response to special social stimulus between autism and TD children? Participants will receive developmental/intelligence assessments (Griffiths Mental Developmental Scales/Wechsler Preschool and Primary Scale of Intelligence-IV/Wechsler Intelligence Scale for Children-IV for children of different ages), social assessments(Autism Diagnostic Observation Schedule-2nd Edition/Social Communication Questionnaire), EEG/ERPs and fNIRs in resting and task states, and head MRI in natural sleeping state(without sedative).