Figure 3.

Numerical breakdown of all movement-related neurons. A, Eye movement-related units. B, Hand movement-related units. In both A and B, the percentage values give the relative fraction of the respective subgroup in relation to all eye and hand movement-related neurons, respectively. C, Polar histogram of the preferred directions of all 84 direction-selective burst neurons. The number of saccade-related burst neurons is represented by the white fraction of a bar, the number of hand movement-related neurons by the complementary black fraction. The gray fraction represents the two neurons that were activated by saccades as well as by hand movements.