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The Sensory Acons in the Spinal Cord and the Cerebellum
The cerebellum is an important part of the brain that's important for really fine skills. Many types of motor learning are known to be mediated by neo-cortical changes in this structure. The serebel um has as many cells in it as the entire rest of the brain, even though it's a structure most text books tend to not say very much about. If people have damage to the serebellum, become a little clumsy and are less able to execute fine movements they're often profoundly disabled. And what you find in evolution is that the cerebellum has increased in size alongside the neo cortex. Rather than being an old, archaic parts of the brain with primitive