The gene-environment interactions that are thought to contribute to many cases of autism can now be explored in a mouse model, according to a poster presented Sunday at the Society for Neuroscience annual meeting in San Diego.

Researchers have narrowed down a genetic region associated with autism to one protein, cadherin 8, that helps bind cells together, according to a study published online in October in the Journal of Medical Genetics. This is the first time CDH8, the gene that encodes this protein, has been associated with autism.

Stem cell studies show that a mutation in the neuroligin-4 gene disrupts the normal development of synapses, the junction between neurons, according to unpublished data shown Sunday at the Society for Neuroscience annual meeting in San Diego.

Siblings of children with autism who show no signs of the disorder may be compensating with increased activity in two brain regions that detect social cues, according to results presented yesterday at the Society for Neuroscience annual meeting in San Diego.

A combination approach may hold promise for treating repetitive motor behaviors, such as those seen in people with autism, according to research presented yesterday at the Society for Neuroscience annual meeting in San Diego.

A Pittsburgh group has created a comprehensive database of brain scans and other medical and demographic data from nearly 800 individuals whose brains have been injured by strokes. The researchers showcased the collection, called the Western Pennsylvania Patient Registry, at a poster session yesterday at the Society for Neuroscience annual meeting in San Diego.

A new mouse model for Rett syndrome shows that disrupting a single brain messenger can produce nearly all of the characteristic features of the syndrome, researchers report today in Nature.

Oxytocin may activate the mirror neuron system — a group of neurons that is active when people empathize with others — according to a paper published in the November Psychoneuroendocrinology.

Despite the impressive stories of people with autism being able to spot fine details, they are surprisingly susceptible to magic tricks, according to a study published in October in Psychological Science.

Chromosome 15 may harbor one or more risk genes for autism, according to a new study of multigenerational inheritance in Utah. Researchers have gathered data on family pedigrees stretching back as far as nine generations, with up to five family members affected by the disorder.