As revealed in a report Archives of General Psychiatry, researchers the University of North Carolina found that children with autism have had signs of enlargement of the brain at the age of two years. Their brains are growing at the age of 4 and 5 years.
"Enlargement of the brain occurs because of the increased number of folds of the brain surface due to the increased proliferation of brain neurons," says Heather Cody Hazlett, assistant professor of psychiatry.
For researchers continue to develop further studies to find out what kind of gene that makes the brain neurons experiencing excessive proliferation. University of North Carolina is currently conducting two separate studies to obtain answers to that question.
Signs of autism can be monitored by continuing to observe the development of a child's brain size. "This effort is important to monitor brain size and behavior change as you age them," said Hazlett.