Fearfulness and shyness in babies and toddlers may predict features of autism at age 7.
The pupils of babies later diagnosed with autism shrink more in response to light than those of their typical peers.
Brain waves in infancy forecast autism, people with more autism features have trouble detecting lies, and veterinarians battle claims that vaccines cause autism in dogs.
Parents who have one child with an autism diagnosis can more accurately spot signs of the condition in their younger child at 12 months of age than clinicians can.
Sally Ozonoff is looking for early signs of attention deficit hyperactivity disorder in videos of hundreds of younger siblings of children with autism.
Children with autism do not show the burst of vocabulary growth that usually accompanies learning to walk.
Some infants who have an older sibling with autism show weak brain signals at 3 months of age.
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