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  1. 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 …

  2. Signs and Symptoms of Autism Spectrum Disorder

    May 16, 2024 · Autism spectrum disorder (ASD) is a developmental disability caused by differences in the brain. People with ASD often have problems with social communication and …

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

    Dec 24, 2024 · ASD describes a group of neurodevelopmental conditions that become evident during early childhood. Certain genetic and environmental factors can contribute to its …

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  4. What is Autism? - Autism Research Institute

    Its formal diagnostic name is autism spectrum disorder. The word “spectrum” indicates that autism appears in different forms with varying levels of severity. That means that each …

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  5. Autism - Wikipedia

    Autism, also known as autism spectrum disorder (ASD), [a] is a condition characterized by differences or difficulties in social communication and interaction, a need or strong preference …

  6. 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, …

  7. Autism Spectrum Disorder - National Institute of Mental Health …

    People with autism have a wide range of symptoms, which can include differences in social and communication behaviors, intellectual disabilities, and other physical and mental health …

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

    Sep 11, 2024 · People usually call this "high-functioning autism" or the outdated term, Asperger syndrome. The American Psychiatric Association (APA) introduced three ASD severity levels in …

  9. Autism Spectrum Disorder (ASD) Symptoms & Causes

    Oct 15, 2025 · Autism spectrum disorder (ASD) is the full medical name for autism. The DSM-5-TR defines ASD as a difference in brain functioning that affects how you communicate and …

  10. Autism - World Health Organization (WHO)

    Sep 17, 2025 · Autism spectrum disorders (ASD) are a diverse group of conditions. They are characterized by some degree of difficulty with social interaction and communication.

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