The Simons Foundation Autism Research Initiative
By Kate Yandell
May 23, 2014
People with autism react to stimuli at an uneven pace, sometimes responding rapidly and sometimes after a lag, but only when the group does not exclude the subset of individuals who also have attention deficit hyperactivity disorder (ADHD), according to a meta-analysis published 13 March in the Journal of Child Psychology and Psychiatry.
Co-occurring ADHD may explain the variability in response time among people with autism, the study suggests.
Researchers have speculated that people with autism may show irregular reaction times, in keeping with other commonalities between autism and ADHD. Women with ADHD are 2.5 times more likely than controls to have children with autism, and the two disorders may share genetic risk factors. Nearly 30 percent of children with autism also meet the diagnostic criteria for ADHD...
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