We will measure electroencephalogram in individuals with neurodevelopmental disorders, such as those with autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD), as well as in neurotypical individuals and primates, under resting conditions, during cognitive tasks, and during repetitive transcranial magnetic stimulation (TMS). We aim to develop a data assimilation method that integrates these data with mathematical models, creating a digital brain that replicates the transient dynamics of brain networks. Through this digital brain, we seek to understand the pathophysiology of neurodevelopmental disorders and to validate intervention methods using repetitive TMS.