Autism Traits Predict Connectivity
People who show strong autism traits tend to have weak connections between the posterior cingulate cortex and other areas of the brain, according to a study published 5 April in PLoS One.
The posterior cingulate cortex is involved in introspection and social memories, and has been shown to have abnormal activity in people with autism.
The ‘connectivity theory’ of autism contends that people with the disorder show abnormally weak connections between the frontal cortex and more posterior areas of the brain. But some studies have contradicted this idea, generating a lively debate among researchers.
In the new study, scientists in Hungary analyzed brain connectivity in 127 adult participants from the International Neuroimaging Data-Sharing Initiative, a large, free repository of data from brain scans and psychological tests.
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