Brain’s big frontal lobe not what makes humans smarter, says study

Human intelligence cannot be explained by the size of the brain’s frontal lobes, say researchers. Many theories have considered that the expansion of the frontal lobe of our human brain was especially crucial to the development of modern human behavior, thought and language. A new study suggest this is not the case.

The new study suggests that supposedly more ‘primitive’ areas, such as the cerebellum, were equally important in the expansion of the human brain. These areas may therefore play unexpectedly important roles in human cognition and its disorders, such as autism and dyslexia, say the researchers.