Autism

Autism (sometimes called “classical autism”) is the most common condition in a group of developmental disorders known as the autism spectrum disorders (ASDs). Autism is characterized by impaired social interaction, problems with verbal and nonverbal communication, and unusual, repetitive, or severely limited activities and interests. Other ASDs include Asperger syndrome, Rett syndrome, childhood disintegrative disorder, and pervasive developmental disorder not otherwise specified (usually referred to as PDD-NOS). Experts estimate that three to six children out of every 1,000 will have autism. Males are four times more likely to have autism than females.

What is Autism?

Autism is not a single disease entity. It is part of a range of developmental disorders known as autistic spectrum disorders (ASD). They begin in childhood and last through adulthood.

Autism Classification

Autism and Junk DNA

Autism History

Autoantibodies and Autism

Picky Eating and Autism: Tips & Advice

The Reward System and Autism

Cognitive Behavioral Therapy for Autism

Are Apraxia and Autism Related?

Autism Related Conditions

Autism and Sleep Problems

What is Autistic Burnout?

See more featured articles »

Autism Causes

Autism Screening

Autism and Particulate Air Matter

Evidence for Autism being a Genetic Condition

Travelling with a Child Who Has Autism

Autism Prognosis

What is Sensory Overload?

Autism Spectrum Disorder & Allergies

Autism Mechanism

Detecting Autism Early

Moving House with Autism: Reducing Stress & Anxiety

Gut Bacteria and Autism Development

Autism Management

Latest Autism News and Research

Hyperactivity in reticular thalamic nucleus drives autism-like behaviors in mice

Stanford Medicine scientists investigating the neurological underpinnings of autism spectrum disorder have found that hyperactivity in a specific brain region could drive behaviors commonly associated with the disorder.

20 Aug 2025

Kennedy’s anti-vaccine strategy risks forcing shots off market, manufacturers warn

Dining under palm trees on a patio at Mar-a-Lago in December, President-elect Donald Trump reassured chief executives at pharmaceutical giants Eli Lilly and Pfizer that anti-vaccine activist Robert F. Kennedy Jr. wouldn't be a radical choice to head the Department of Health and Human Services.

20 Aug 2025

‘Alternative facts’ aren’t a reason to skip vaccines

President Donald Trump's administrations have been notorious for an array of "alternative facts" — ranging from the relatively minor (the size of inaugural crowds) to threats to U.S. democracy, such as who really won the 2020 election.

14 Aug 2025

Prenatal acetaminophen linked to higher risk of autism and ADHD

Researchers at the Icahn School of Medicine at Mount Sinai have found that prenatal exposure to acetaminophen may increase the risk of neurodevelopmental disorders, including autism spectrum disorder and attention-deficit/hyperactivity disorder (ADHD), in children.

14 Aug 2025

New research sheds light on what makes the human brain unique

Research from scientists at University of California San Diego School of Medicine have shed new light on an age-old question: what makes the human brain unique?

13 Aug 2025

Love hormone oxytocin found to be critical for the formation of friendships

A new UC Berkeley study shows that the so-called love hormone, oxytocin, is also critical for the formation of friendships.

12 Aug 2025

Autistic college students face higher rates of anxiety and depression

As autism diagnoses continue to grow and remain a topic of nationwide debate, new research reveals that autistic individuals are facing mental health challenges at a major turning point in their lives – when they go to college.

12 Aug 2025

Study explores how oxytocin influences brain activity to shape social behavior

Oxytocin promotes social behaviors and helps maintain relationships. But clinical trials in patients with autism show variability in how consistently oxytocin improves these behaviors.

12 Aug 2025

Parents’ workplace chemical exposure may be linked to behavioral challenges in children with autism

A new study in the International Journal of Hygiene and Environmental Health finds parents' workplace chemical exposure may be linked to a range of behavioral challenges and developmental delays in their children with autism.

8 Aug 2025

Gut bacteria may connect pregnancy diet to childhood autism

Unhealthy maternal diets may alter gut microbes, impacting brain development and increasing autism risk in offspring. Study the microbiome's influence.

8 Aug 2025

Scientists reveal how rare gene mutations drive schizophrenia risk

Researchers analyzed the largest exome-sequencing dataset to date and identified new rare coding variants and genes linked to schizophrenia risk. The study highlights converging genetic pathways, implicating chromatin organization and GABAergic signaling in schizophrenia neurobiology.

4 Aug 2025

$5.5 million federal grant funds research to improve measurement of FXTAS treatments

UC Davis Health Professor of Psychiatry and Behavioral Sciences David Hessl will help lead a major research project to develop better ways to measure treatments for fragile X-associated tremor/ataxia syndrome (FXTAS).

31 Jul 2025

Chronically ill? In Kennedy’s view, it might be your own fault

On a recent weekday evening, Ashly Richards helped her 13-year-old son, Case, with homework. He did math problems and some reading, underscoring how much he's accomplished at his school for children with autism.

31 Jul 2025

Thalamic feedback pathway found to tune sensory perception

The cerebral cortex processes sensory information via a complex network of neural connections. How are these signals modulated to refine perception? A team from the University of Geneva (UNIGE) has identified a mechanism by which certain thalamic projections target neurons and modify their excitability.

30 Jul 2025

Innovative technologies push pediatric MRI beyond diagnostics

From fetal stages through adolescence, the b;rain undergoes rapid, layered development—from basic motor skills to complex emotional regulation.

30 Jul 2025

Immigrant kids detained in ‘unsafe and unsanitary’ sites as Trump team seeks to end protections

A child developed a rash after he was prevented from changing his underwear for four days. A little boy, bored and overcome with despair, began hitting himself in the head.

30 Jul 2025

Largest genetic study confirms biological basis of stuttering

The largest genetic analysis of stuttering has demonstrated a clear genetic basis for the speech disorder, highlighting neurological pathways of risk.

28 Jul 2025

Fearing Medicaid coverage loss, some parents rush to vaccinate their kids

For two decades, Washington, D.C., pediatrician Lanre Falusi has counseled parents about vaccine safety, side effects, and timing. But this year, she said, the conversations have changed.

28 Jul 2025

Uncovering origins of autism, depression, Parkinson's in fetal brain

The origin of some neuropsychiatric diseases, such as autism, bipolar disorder, or depression, and certain neurodegenerative diseases, Alzheimer's and Parkinson's, can be found in very early stages of brain formation in the fetus. That is, earlier than previously recognized, according to a study by the Hospital del Mar Research Institute and Yale University, published in Nature Communications.

26 Jul 2025

Probiotic bacteria found to reshape cell behavior in vitro

This study reveals how probiotic bacteria directly influence brain cell function, highlighting gut-brain communication and potential therapeutic applications.

23 Jul 2025