One of the most significant advances is the systematic implementation of developmental and behavioral screenings, especially in early childhood. Updated guidelines from the American Academy of Pediatrics (AAP) recommend the use of standardized tools such as the ASQ (Ages and Stages Questionnaires) and the M-CHAT-R/F (Modified Checklist for Autism in Toddlers) to detect developmental delays and early signs of autism spectrum disorders, enabling earlier and more effective interventions.