The relatives of autistic people often have mild traits of the condition. Studying these family members could broaden our understanding of autism.

Problems with the minute ‘factories’ that yield energy for cells — the mitochondria — may contribute to learning problems and other traits of fragile X syndrome.

A brain region that orchestrates responses to social cues and aids decision-making may be off tempo in autism.

Una remota ciudad colombiana es el hogar del grupo más grande de personas con síndrome de X frágil. Los científicos están aprendiendo de ellos y tratando de ayudar.

A team of researchers is trialing a fast approach to autism drug development: simultaneously testing candidates in people and in mice.

The motion perception difficulties seen in people with fragile X syndrome, a leading cause of autism, may stem from a faulty visual circuit.

Fragile X syndrome is a leading genetic cause of autism. People who have either condition often share certain traits, such as difficulties in social situations.

A remote Colombian town is home to the world’s largest cluster of people with fragile X syndrome. Scientists are learning from them — and trying to help.

Looking at the brain as a whole suggests that nudging flawed sets of neurons to collaborate better might alleviate autism traits.

Many people with fragile X syndrome show average rates of protein production, challenging a long-held assumption about the condition.