Figure 4.

Global and large shape signals have a shorter latency than local and small shape signals. A, Cumulative distributions of the latency of the discriminative signal for global shape carried by 21 globally selective neurons (black) and the signal for local shape carried by 29 locally selective neurons (gray). Numbers under the arrows indicate the mean global and local latencies (in milliseconds) for the corresponding groups of cells. B, Cumulative distributions of the latency of the discriminative signal for large shape carried by 31 large-shape selective neurons (black) and the signal for small shape carried by 34 small-shape selective neurons (gray). C, Global signal lead time (local latency minus global latency) was positively and significantly correlated with large-signal lead time (small latency minus large latency) across 38 neurons selected on the basis of exhibiting significant global or local selectivity.