Responses of four example neurons. Format is as in Figure 1C, but responses are shown for all 27 conditions. A, Unit with complex responses. This neuron showed both an overall increase in firing rate across conditions and a strong oscillatory component that was condition-specific (unit JAD1-98, same as in Fig. 1C). Scale bars same as Figure 1C. Inset in upper left shows reach trajectories, colored the same as their corresponding neural traces. B, Another unit with complex condition-specific responses, recorded from the other monkey (unit NAD-165). C, Unit with responses that were strongly condition-correlated (unit JAD1-70). D, Unit where the initial response was condition-correlated: a decline across all conditions. Later activity is more condition-specific (unit JAD1-114).