Figure 6.
Time course of firing rates underlying the choice probability. Firing rates of each stimulus (Stim.) condition were normalized by the peak response for that condition and combined across all conditions and all cells with a significant choice probability of the predicted sign (see Results). The thickness of the shaded curves depicts one SE on each side of the mean. The dark curve represents trials in which monkeys chose the speed inside the RF as faster; the light curve represents trials in which monkeys chose the speed outside the RF as faster. The dashed line (and the axis on the right) is the difference of the two curves (IN - OUT). Each data point was calculated with a time bin of 50 ms; a sliding bin was incremented in 10 ms intervals to produce the plots. Time 0 is the onset of visual stimulus. The first bin includes spikes from -500 to -450 ms, and the data point is plotted at -450 ms (before stimulus onset). Thus, the data points are positioned at the right edge of each bin.