Figure 8.
Relation between direction tuning and absolute reward responsiveness for neurons with peak responses after saccade execution. The tuning sharpness along the abscissa is taken as an average of the tuning sharpness for the rewarded and unrewarded conditions, weighted by the reciprocal of the width of the associated confidence interval. Only neurons that are significant for either RR or TS are plotted (n = 54, 3 Postsaccade neurons, 51 Reward neurons). Four example neurons that were jointly significant for both TS and RR are shown (the single Postsaccade neuron differentially responsive to reward, and 3 Reward neurons). The dashed lines represent the marginal medians. The quadrants defined by the intersection of these lines would each contain 25% of the data points under the hypothesis of independence between tuning sharpness and reward responsiveness.
