FIG. 9.

Effects of motivational conflict on neuronal activity. A: the ensemble average activity on big-reward trials (left) and small-reward trials (right) for all of the movement-related neurons studied (n = 62). The activity is aligned on the onset of the target and drawn until the median SRT. c-SC, SC contralateral to the target; i-SC, SC ipsilateral to the target. B: a schematic illustration of presumed behavioral processes influencing the intercollicular inhibitory interactions. The command for the saccade to the visual target is issued from c-SC. Presumed inhibitory interneurons are omitted.