IRVINE, Calif., Sept. 12 (UPI) -- U.S. scientists have identified a brain network they believe is the biological basis of intelligence.
Richard Haier of the University of California-Irvine and Rex Jung of the University of New Mexico posit the frontal and parietal lobes of the brain are primarily responsible for intelligent thought. The parietal lobe is directly behind the frontal lobe and both are known to process attention, memory, and language.
The researchers said the integration of cognitive functions suggests intelligence is based on how efficiently networks in the frontal and parietal lobes process information.
"Recent neuroscience studies suggest that intelligence is related to how well information travels throughout the brain," said Haier, "Our review of imaging studies identifies the stations along the routes intelligent information processing takes. Once we know where the stations are, we can study how they relate to intelligence."
Haier and Jung, who reached their conclusions after a review of 37 imaging studies of the brain related to intelligence, report their findings online in the journal Behavioral and Brain Sciences.