As genetic testing becomes routine, people are likely to face difficult choices about parenthood.
Diagnosing autism is an evolving science but a crucial first step to understanding the disorder.
Infant siblings of children with autism tend to lag behind their peers at the earliest stages of language development before catching up at around 12 months of age.
Children with autism understand fewer words than their verbal ability would suggest, according to a study published in December in the International Journal of Language and Communication Disorders.
Copy number variations, or CNVs — duplications or deletions of DNA segments — can influence the expression of unrelated genes on the same chromosome, according to a study published in November in PLOS Biology.
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.