<prompt> Which one of the following clearly states the role of cerebellum in motor performance:Planning and programming of movementConve abstract thought into voluntary actionInitiation of skilled voluntary actionSmoothens and coordinates ongoing movements  <response>: D i.e. Smoothens and coordinates ongoing movement Cerebellum smoothens coordinates ongoing movement in motor performance this is the reason why lesion of cerebellum causes: - Ataxia lack of coordination of movement - Asynergia lack of coordination bw different group of muscles - Astasia Unsteady voluntary movement. 