In an online article released on June 3, John Cunningham and his colleagues describe potentially revolutionary insight into the workings of the motor cortex. Populations of neurons in motor cortex appear to undergo similar coordinated rhythmic oscillations for a wide variety of motions. The model suggests the motor cortex acts as a general pattern generator. This finding challenges the conventional view that individual neurons each encode external features of the movement -- a model derived from our understanding of the visual cortex.
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