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KATERYNA KON/SCIENCE PHOTO LIBRARY The key to human evolution may have been at the back of our minds all along – literally. Some of the biggest biochemical differences between human brains and those of other primates are found in the cerebellum, a region at the rear of the brain that has often been overlooked in evolutionary studies. The finding adds to growing evidence that changes to the cerebellum have been crucial for the origin of the human mind. Advertisement All backboned animals have a cerebellum, which is involved in controlling movement. “It’s not really associated with much that’s uniquely human,” says Elaine Guevara at Duke University in North Carolina. Instead, neuroscientists seeking to explain the evolution of our brains have tended to focus on the cortex, the thick outer layer of the forebrain – especially the prefrontal cortex, which underpins our ability to consciously decide what to do.

North carolinaUnited statesMichael marshallElaine guevara at duke universityElaine guevaraDuke universityவடக்கு கரோலினாஒன்றுபட்டது மாநிலங்களில்மைக்கேல் மார்ஷல்எலைன் குவேராடியூக் பல்கலைக்கழகம்