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  1. What is Autism? - Autism Research Institute

    Autism is a developmental disorder that appears within the first three years of life. Learn about presentations, diagnosis, and care.

  2. Autism Spectrum Disorder - National Institute of Mental Health (NIMH)

    Autism spectrum disorder (ASD) is a neurological and developmental disorder that affects how people interact with others, communicate, learn, and behave. Although autism can be diagnosed at any age, …

  3. Autism spectrum disorder (ASD) | Autism Speaks

    Autism, or autism spectrum disorder (ASD), refers to a broad range of conditions characterized by challenges with social skills, repetitive behaviors, speech and nonverbal communication.

  4. What is autism spectrum disorder? - Harvard Health

    May 22, 2025 · Autism spectrum disorder (ASD) is a complex neurological condition that affects how a person interacts, communicates, and experiences the world. Learn about its symptoms, causes, …

  5. About Autism Spectrum Disorder | Autism Spectrum Disorder (ASD)

    Apr 13, 2026 · Autism spectrum disorder (ASD) is a developmental disability caused by differences in the brain. Some people with ASD have a known difference, such as a genetic condition.

  6. Autism Spectrum Disorder (ASD) Symptoms & Causes

    Apr 15, 2026 · Autism is a difference in how your child’s brain works that causes them to socialize and behave in unique ways. Early signs of autism include limited eye contact and body language and …

  7. Autism - Wikipedia

    Autism is primarily characterized by differences and difficulties in social interaction and communication, alongside restricted or repetitive patterns of interests, activities, or behaviors (stimming), and, in …

  8. Autism - World Health Organization (WHO)

    Sep 17, 2025 · WHO fact sheet on autism with sections on epidemiology, causes, assessment and care, human rights and WHO's work in this area.

  9. Autism spectrum disorder - Symptoms and causes - Mayo Clinic

    May 22, 2025 · Autism spectrum disorder is a condition related to brain development that affects how people see others and socialize with them. This causes problems in communication and getting …

  10. Autism Fact Sheet - National Autism Association

    A study by Columbia University found that children with autism are 160x more likely to drowning than their neurotypical peers Autism greatly varies from person to person (no two people with autism are …

  11. What Is Autism? - Verywell Mind

    Oct 29, 2025 · Autism, also known as autism spectrum disorder, is a neurodevelopmental disorder characterized by social interaction and communication challenges, as well as restricted or repetitive …

  12. What is autism - National Autistic Society

    What is autism? Autism influences how people experience and interact with the world. It is a lifelong neurodivergence and disability. Autistic people are different from each other, but for a diagnosis they …

  13. What Is Autism? - American Autism Association

    Autism Spectrum Disorder (ASD) is a developmental disorder that causes issues with communication, social, verbal, and motor skills. The most important thing to know about autism is that it is a spectrum …

  14. Autism: Overview and More - Verywell Health

    Mar 10, 2025 · Autism is a developmental disorder of communication, motor skills, and more that starts in early childhood.

  15. Understanding Autism: What It Is and What It Isn’t

    Apr 9, 2025 · What is Autism? Autism Spectrum Disorder (ASD) is a developmental difference that affects how people may perceive, experience, and interact with the world around them.

  16. Autism (ASD): Symptoms, Causes, Tests, Treatment & More

    Dec 24, 2024 · Autism spectrum disorder (ASD), or autism, is a broad term used to describe a group of neurodevelopmental conditions. Differences in communication and social interaction characterize …

  17. Autism: Symptoms, Causes, Types, and Testing - WebMD

    Sep 11, 2024 · Know about autism, including its symptoms, causes, types, and testing methods. Explore WebMD's comprehensive guide to better understand and manage autism.

  18. What Does Level 1 Autism Look Like? - MedicineNet

    Apr 14, 2026 · Level I autism is the mildest form of autism and only requires minimal support. Learn about the signs and symptoms of level I, level II, and level III autism.

  19. Autism Spectrum Disorder (ASD) | Autism Spectrum Disorder (ASD)

    Autism Spectrum Disorder (ASD) is a developmental disability causing social, communication, and behavioral challenges.

  20. What Is ABA Therapy? Autism Treatment Faces Questions of …

    May 1, 2026 · America’s Go-To Autism Therapy Is Also the Most Controversial ABA has become big business, with parents and patients who swear by it. Critics call it harmful. Kaelynn Partlow.

  21. What Is ABA Therapy? How It Works for Autism | Behavioral Innovations

    ABA therapy is an evidence-based approach that helps children with autism build communication, social, and daily living skills. Learn how it works and what to expect.

  22. Diagnosed with autism as an adult? What to know

    Mar 24, 2026 · High-functioning autism in adults can be hard to spot. Learn common ASD traits, masking behaviors, and what getting a later-life diagnosis may mean.

  23. What Is Autism Spectrum Disorder? - Psychiatry.org

    Learn about Autism Spectrum Disorder, including symptoms, risk factors, treatment options and answers to common questions.

  24. Man Breaks Down in Tears After Getting Autism Diagnosis at Age 42 ...

    May 3, 2026 · After decades of being ‘mislabeled, mismedicated, and misdiagnosed,’ Tyler Barnett was finally diagnosed with level 1 autism and ADHD, bringing him long-awaited clarity and relief.

  25. Autism Spectrum Disorder - National Institute of Mental Health (NIMH)

    Learn about NIMH research on autism spectrum disorder. Find resources on the signs and symptoms of autism and potential treatments and therapies.

  26. Signs and Symptoms of Autism Spectrum Disorder

    Autism spectrum disorder (ASD) is a developmental disability caused by differences in the brain. People with ASD often have problems with social communication and interaction, and restricted or repetitive …

  27. Signs of autism in adults | Autism Speaks

    1 in 45 adults in the U.S. is diagnosed with Autism spectrum disorder. Learn the signs of autism in adults, autistic traits in adults, and access helpful resources.

  28. Autism diagnostic criteria: DSM-5 | Autism Speaks

    Read the full text for the diagnostic criteria of autism spectrum disorder (ASD) from the Diagnostic and Statistical Manual of Mental Disorders (DSM-5).

  29. Early Start Denver Model (ESDM) - Autism Speaks

    The Early Start Denver Model (ESDM) is a behavioral therapy for autistic children between ages 12-48 months, based on methods of Applied Behavior Analyis.

  30. NC auditor flags 47,000% spike in Medicaid autism therapy billings in ...

    3 days ago · North Carolina's state auditor says a massive surge in Medicaid autism therapy billings signals potential waste, fraud, and abuse in the system.

  31. Georgia Gov. Kemp signs bill passing autism alert system for first ...

    6 days ago · Rio's Law, which was signed by Gov. Brian Kemp, requires autism training for law enforcement and creates specialty license plates.