Sleeping zebrafish show two patterns of neuronal activity that are analogous to those in people.

Sleep problems may contribute to autism’s underlying biology — a connection that scientists can study in animal models.

A new online tool maps the shape and location of neurons in the larval zebrafish brain.

A new method enables researchers to plot activity in the zebrafish brain’s system for spatial orientation and balance.

A new behavioral test in zebrafish may help researchers zero in on the biology of social interactions.

Five scientists describe the biggest challenges they face in solving sleep problems in people with autism.

Zebrafish lacking the autism-linked gene SHANK3 show little social interest and other behavioral abnormalities.

A cannabis gel may ease features of fragile X syndrome, omega fatty acids show promise for autism in two trials, and oxytocin reinforces social behaviors through the brain’s reward pathway.

The National Institutes of Health receives a $2 billion boost, politicians who propagate anti-vaccine views are fueling outbreaks, and a new report highlights preventable conditions associated with autism.

Peruse our picks for the best science photos published on Spectrum this year.