For years researchers have said children with autism are more likely to have large heads, a phenomenon they attributed to "early brain overgrowth." But now several scientists are questioning assumptions about brain overgrowth and autism, especially how common it is. Their stories spotlight the important ways science reconsiders evidence in the search for answers.
Advocates have used IAN Research data to support insurance coverage of autism treatments.
Date First Published: December 7, 2007
Preliminary analysis shows that younger children with ASDs tend to be taller, and older children with ASD tend to be heavier, than their unaffected siblings.
A preliminary look at some early IAN data on gender, IQ, and other information from IAN families.