
Researchers at McLean Hospital in Boston and the University of Utah used MRIs to analyze the microscopic fiber structures that create the brain circuitry in 30 males aged 8 to 26 with high-functioning autism and 30 males without autism.
Males with autism showed differences in the white matter circuitry in two regions of the brain's temporal lobe: the superior temporal gyrus and the temporal stem. Those parts are involved with language, emotion and social skills, according to the researchers.