The high levels of serotonin seen in the blood of some autistic people have confounded scientists for more than half a century. Despite so little progress, some researchers refuse to give up.
Spectrum: Autism Research News
Signs & Symptoms
Autism’s core symptoms accompany a constellation of subtle signs that scientists are just beginning to unmask.
The recognition of autism independently at different times and across different cultures shows the condition has clear boundaries, despite considerable heterogeneity.
Researchers have defined a change in score on a popular autism rating scale that signifies a meaningful improvement in core traits. The measure could help scientists assess the effectiveness of autism treatments in clinical trials.
Children with highly folded and curved brains in utero tend to show autism-linked behaviors at 18 months of age, according to a longitudinal brain-imaging study.
So-called ‘baby sibs’ watch adults’ faces just as much as children without autistic siblings do, but they don’t understand spoken language as well.
A test of binocular rivalry may distinguish between autism subtypes and help researchers screen the efficacy of certain drugs.