Figure 1.

Structure of the model of the cerebellar cortex and example of NO diffusion. We modeled four microzones: a flexor and an extensor microzone for the shoulder and the elbow joints. Each microzone contained nine columns and three rows of PCs as drawn on the left (shoulder extensor microzone). The color picture shows an example of the spatial aspect of NO diffusion in the model (k = 0.3 s⁻¹, D = 3,300 μm²/s); light colors show high NO concentrations. The large NO concentration in the most rightward microzone (elbow flexor microzone) was caused by a large error in the elbow flexor during this movement; conversely, low concentration in the most leftward microzone (shoulder extensor microzone) was caused by a small error in the shoulder extensor.