Figure 2.

Example unit from F5. Activity of this neuron is modulated by both grip type and spatial factors. In each panel, solid vertical lines indicate the onset and offset of the task epochs: fixation, cue, planning, and movement; dashed vertical lines indicate movement start. All trials are threefold aligned to fixation onset, cue offset, and the “go” cue (indicated by black triangles). Spike rasters (top) and averaged firing rates (bottom) are shown in different colors for each condition, as indicated by the inset. A–C, Neural activity for performing precision grip trials in the CV, TV, and GV conditions. D–F, Neural activity for performing power grip trials in the CV, TV, and GV conditions. On-center condition (eT) is identical and reappears in the CV, TV, and GV task. Note that colors code either target and gaze position (A,D), only target position (B,E), or only gaze position (C,F).