Research by Topic
Autism research is published across many fields — genetics, screening, communication, health, adulthood and services. This page is a map: pick a topic and we explain what the research says, in plain language, with every claim linked to its source.
Based on IACC · CDC · NIH · All sources · Checked November 3, 2026
Six topics, one approach
Every topic page follows the same pattern: a short orientation, then two to four study cards — each with what was studied, what was found, and the limits — linking to the original source. A closing section explains what the research does and does not mean for families.
Genetics & Biology
Autism groups in a 5,392-child cohort, stem-cell models of the developing brain, and family patterns of likelihood.
Screening & Identification
CDC’s 2022 surveillance report (1 in 31 across 16 sites) and NIH-funded digital and clinic-based screening studies.
Communication & Support
How toddlers respond to expressive speech, and research directions for minimally verbal and non-speaking people.
Health & Co-Occurring Conditions
Intellectual disability in surveillance data, early sleep problems, and a sibling study on acetaminophen in pregnancy.
Adulthood & Aging
Employment figures, gaze research in adults, and NIH centers now studying aging and adult mental health.
Services, Access & Inclusion
Does more intervention mean better outcomes? Plus community differences in identification and federal data partnerships.
Topic pages are updated as new verified sources are added. Each card names its journal or agency and date.
How federal research is organised
The Interagency Autism Coordinating Committee groups research under the seven Questions of its 2021–2023 Strategic Plan: Screening & Diagnosis; Biology; Genetic & Environmental Factors; Interventions; Services & Supports; Lifespan; and Infrastructure & Prevalence. Our six topics follow a similar shape so that families can move between this site and the IACC Summary of Advances, which each year summarises the top 20 advances selected by committee members.
Where the numbers come from
Prevalence figures on these pages come from CDC’s Autism and Developmental Disabilities Monitoring (ADDM) Network, which tracks the number and characteristics of children with autism at multiple U.S. sites. For the 2022 surveillance year, 16 sites reported that about 1 in 31 (3.2%) 8-year-olds had been identified with autism. The sites are not nationally representative, so the figure describes those communities rather than the whole country.
Sources
This website provides general educational information. It does not diagnose autism or replace individualized medical, developmental, psychological, or educational advice. Screening is not diagnosis.
External listings do not imply affiliation, endorsement, or guaranteed services. Eligibility, availability, costs, and insurance coverage may change. Research summaries reflect evidence available at the time of review.