Figure 4. Representation of category signals.
(A) Example neurons with activity during post-saccade (A) and reward (B) periods. (top) Spike raster plots, each row is one trial and each dot is detected spike, and spike density functions (mean ± SEM) in response to speeds 6 (left) and 12 (right). Black lines show periods of the task. Dashed black lines indicate average reaction time to saccade. (bottom) Average neuronal activity across stimuli sorted by the boundary position. Orange/blue dashed lines, actual boundary positions. Bars, SEM. (C and D) Scatter plots of CIs for speed 6 vs speed 12 across neurons with activity during post-saccade (C, n = 31) and reward (D, n = 23) periods. Example neurons in (A and B), star and square in (C and D), respectively. (E and F) (top) Average CI across speeds for neurons with activity during post-saccade (E) and reward (F) periods. (bottom) Proportion of neurons with a significant difference between spike counts across boundaries for each speed (bootstrap test, p < 0.05).
Figure 4—figure supplement 1. Examples of two additional caudate neurons.
