Extended Data Fig. 10. Spike-timing coordination and response latency.

a, Top row: For Monkey 2, mean coordination plotted across sessions for each social event in V4, dlPFC, and between brain areas (V4: P = 0.03, r = 0.6; P = 0.005, r = 0.7; P = 0.1 and P = 0.2. PFC: P = 0.008, r = 0.7; P = 0.003, r = 0.8; P = 0.002, r = 0.7 and P = 0.44. V4-dlPFC: P = 0.02, r = 0.6; P = 0.006, r = 0.7; P = 0.01, r = 0.6 and P = 0.48). For ‘view reward’ and ‘view partner’ events, only 14 sessions were analyzed due to an inadequate number of stimulus fixations in 3 out of 17 sessions (sessions with <30 fixations were not included in the analysis). P-values for these data are reflected in Fig. 5c. Bottom row: For monkey 2, mean spike timing coordination during fixations on random objects and during random events (intertrial period, 4.5 seconds before trial start) for V4, dlPFC, and inter-areal cell pairs. V4: P = 0.03 and 0.9; PFC: P = 0.53 and 0.45; V4-dlPFC: P = 0.01 and 0.14, for random events and random fixations, respectively. Significant P-values here correspond to decreasing trends. b, For each monkey (rows) and social event (columns), boxplots display the distribution of differences in V4 and dlPFC response latencies for correlated and uncorrelated neuron pairs across all sessions. V4 latencies were subtracted from dlPFC, i.e., negative values reflect pairs where the dlPFC neuron responded first. For uncorrelated pairs, the difference in latency between every possible combination of pairs was computed. The P-value from Wilcoxon rank-sum test comparing latency differences from correlated and uncorrelated pairs is displayed. On each boxplot, the central red mark indicates the median, and the bottom and top edges of the box indicate the 25th and 75th percentiles, respectively. The whiskers extend to the most extreme data points not considered outliers, and the outliers are plotted individually using the ‘+’ symbol in blue.