Brain network studies reveal sex-specific patterns in autism

Recent neuroimaging research has identified distinct brain network patterns associated with autism in children and adolescents. A study involving 80 boys aged 5 to 12 suggests that the strength of communication within and between attention networks is linked to the severity of communication difficulties. Researchers found that verbal and nonverbal communication challenges involve different mechanisms: verbal difficulties are linked to maintaining attention, while nonverbal challenges involve both maintaining and switching attention.

In a separate study of 337 young people aged 8 to 18, researchers identified sex-specific structural differences in the brain. Autistic boys showed patterns centered on the fusiform gyrus, a face-processing region, which correlated with social and communication traits. In contrast, autistic girls showed differences centered on the entorhinal cortex, a memory hub, which did not show a significant link to autism traits. These findings utilize structural MRI data to examine how brain regions are physically similar in structure, rather than tracking active nerve signals.