At birth, children with autism have lower blood levels of a class of antibody produced in response to infection compared with healthy controls, according to a report published in December in Autism Research.

A new drug appears to relieve symptoms of fragile X syndrome by blocking the over-production of a key protein in a subset of people with the disorder, according to a 6 January study in Science Translational Medicine.

Using tricks of genetic engineering, researchers in Taiwan have created the first comprehensive map of the myriad neuronal connections in the fruit fly brain. The findings appeared 11 January in Current Biology.

Using tricks of genetic engineering, researchers in Taiwan have created the first comprehensive map of the myriad neuronal connections in the fruit fly brain. The findings appeared 11 January in Current Biology.

Relatives of individuals with autism recognize faces and emotions better than people with autism do, but not as well as typically developing controls do, according to a study published in December in Autism Research.

Scientists have created mice that carry mutations in SHANK3, one of the strongest candidate genes for autism. The animals have behavioral and neurobiological features reminiscent of autism, researchers reported 17 December in Molecular Autism.

Teenagers with autism look at faces in pictures a little later than controls do, even when the faces are the most striking part of the image, according to a study published in November in Neuropsychologia. They are as likely as healthy controls to look at other prominent aspects of an image, however.

Doctors are more likely to miss autism in girls, even when their symptoms are as severe as those of boys, adding to the gender bias that exists in autism.

Mice lacking one copy of a gene associated with Williams syndrome share the hyper-sociability of people with the disorder, according to a paper published online 3 December in Autism Research.

Teenagers with autism are less efficient at rapidly shifting their eye gaze — an indicator of motor ability — compared with either typically developing controls or adolescents with Asperger syndrome, according to a study published in November in Cerebellum.