Researchers have identified a rare genetic variant linked to autism in DLX1, a gene that regulates the growth of neurons, they reported in December in the American Journal of Medical Genetics.

A new technique called array tomography allows researchers to visualize individual synapses, the complex junctions between neurons, in the mouse brain. Researchers have also identified several markers that highlight the incredible diversity of synapse types.

A controversial new approach that quiets the activity of certain neurons in the brain alleviates breathing difficulties in a mouse model of Rett syndrome, according to a study published 4 October in the Proceedings of the National Academy of Sciences.

Reducing the levels of CNTNAP2 — a gene implicated in both autism and language impairment — in zebrafish leads to a decrease in neurons that dampen signals in the brain, according to unpublished data presented Tuesday at the Society for Neuroscience annual meeting in San Diego.

The brains of young mice with fragile X syndrome show a dearth of two proteins that are important at the synapse, the junction between neurons, researchers reported Tuesday at the Society for Neuroscience annual meeting in San Diego.

Proteins that function at the synapse, the junction between neurons, have been strongly linked to autism. At the Society for Neuroscience annual meeting in San Diego, Mriganka Sur, professor of neuroscience at the Massachusetts institute of technology, explained how studying synapses is revolutionizing our understanding of autism.

Children with autism have an imbalance of excitation and inhibition in the brain, according to the first study to measure synchrony between brain networks using magnetoencephalography (MEG). The findings were presented Wednesday at the Society for Neuroscience annual meeting in San Diego.

The fruit fly is a good model for some of the cognitive defects in fragile X syndrome — but researchers sometimes find themselves having to defend their choice.

People with autism have structural differences in the temporal cortex — a brain region involved in sound and language processing — compared with controls, according to a postmortem study presented Monday at the Society for Neuroscience annual meeting in San Diego.

Researchers have developed the first stem cell system that makes it possible to study the early development of neurons from people with Rett syndrome, a rare disorder on the autism spectrum.