What is the major input to the basal ganglia?
The major input is from the motor cortex and the thalamic nuclei. The basal ganglia function, simplistically, as a feedback loop: cerebral cortex → basal ganglia → thalamus → cerebral cortex.
The major input is from the motor cortex and the thalamic nuclei. The basal ganglia function, simplistically, as a feedback loop: cerebral cortex → basal ganglia → thalamus → cerebral cortex.