Researchers are just beginning to learn what happens in the brains of autistic children during adolescence to explain their unique social, cognitive and emotional challenges.
People with autism show significant improvements in cognitive ability from age 12 to 23 years, but their autism traits remain stable over this time.
Autistic children who lose words reach key milestones earlier than autistic children without language regression.
Some children who dramatically lose a range of abilities after age 2 may have a condition called childhood disintegrative disorder.
Watch the complete replay of Stelios Georgiades discussing a model for predicting trajectories in children with autism.
People with mutations in SHANK3 have milder features than do those missing a chunk of DNA that includes the gene.