The Effects and Mechanism of Parent Intervention for Autism Sprectrum Disorder

Purpose of the Research: The goal of this clinical study is to investigate if a parent training program called "Project IMPACT" (Improving Parents as Communication Teachers) can help improve the core challenges in social interaction and communication for children with Autism Spectrum Disorder (ASD). And to explore whether and how this intervention affects children's brain activity. Key Questions This Study Aims to Answer: Does participation in the IMPACT parent training program significantly improve ASD symptoms, social communication abilities, and adaptive functioning in daily life for children with ASD compared to general intervention? Study Design: This is a assessor blinding randomized controlled trial. Participating children will be randomly assigned to one of two groups: IMPACT Intervention Group with primary caregiver conducting intervention and Control Group with current routine interventions provided by behavioral trainers. The research team will evaluate all children at three time points: before the intervention starts, immediately after the 10 - week intervention period, and 6 months after the intervention ends. The measurements include social - related questionnaires, ADOS - 2, Griffiths Scales, eye - tracking, task - based fNIRS, and fMRI without sedation.