Figure 10.

Examples of MN discharge with corresponding monkey gaze position where the neuronal activity and the eye traces are aligned, (A) on grasping observation and (B) on monkey's own gaze shift between the Face fixation window and the target fixation window. In both A and B, the top traces are showing the eye position in x- and y-axes. The height and length of the gray horizontal rectangles represents the relative fixation windows size, and the duration of the fixation, respectively. Note the stability of the eye position within each fixation window. The vertical gray rectangles represent the grasping epoch (A) and the monkey gaze-shift epoch (B). The neuronal discharge is time-locked to the grasping observation (A), but do not change with monkey's own saccade made the same direction as the preferred gaze direction of the neuron (B).