Dual STDP processes at Purkinje cells contribute to distinct improvements in accuracy and speed of saccadic eye movements
Fig 4
Predictive encoding of saccade eye speed in PC activity.
Modulation of simple spike firing rate caused by decreased input on the cerebellar MFs (1, 0.83, 0.67 and 0.5 of the input used for training) for a) the burst PC subpopulation, b) the pause PC subpopulation, and c) for all PCs together (t = 0 ms is the onset of the eye movement). d) Comparison of PC population activity and saccade eye speed (dashed lines) for different MF input levels. e) Relationship between the peak of PC SSpike firing rate in the anticipatory period and the corresponding peak eye speed. Pearson correlation = 0.99, p value < 0.01. f) The foveal error occurring at the different input levels to the cerebellar network. The dashed black line corresponds to the foveal error without the cerebellum.