Abstract
MANY lines of evidence suggest that the cerebellum is involved in motor control1. But what features of these movements are encoded by cerebellar neurons? For slow-tracking eye movements, the activ-ity of Purkinje cells in the ventral paraflocculus of the cerebellum is known to be correlated with eye velocity2–5 and acceleration5. Here we show that the complex temporal pattern of the firing frequency that occurs during the ocular following response elicited by movements of a large visual scene6–8 can be reconstructed by an inverse-dynamics representation, which uses the position, velocity and acceleration of eye movements. Further analysis reveals that the velocity and acceleration components can provide appropriate dynamic drive signals to ocular motor neurons, whereas the position component often has the wrong polarity. We conclude that these Purkinje cells primarily contribute dynamic command signals.
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Shidara, M., Kawano, K., Gomi, H. et al. Inverse-dynamics model eye movement control by Purkinje cells in the cerebellum . Nature 365, 50–52 (1993). https://doi.org/10.1038/365050a0
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DOI: https://doi.org/10.1038/365050a0
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