Fig 5. Variability and correlation in mouse auditory cortex.

A: Average response versus response variance in a single population. Colors correspond to 10 randomly chosen stimuli. Dots correspond to single neurons, circles to averaged values across population. Dashed line indicates identity. Inset: All neurons for all stimuli. B: Scatter plot of signal correlation coefficient (across stimuli) vs. noise correlation coefficient (averaged over stimuli), for different neural populations measured in the same animal; marginal histograms at top and bottom. Signal and noise correlations are correlated across pairs. Correlations are high in general, but the amount of signal and noise correlations varies strongly across populations. Circles denote average across pairs in each populations. Inset: Black circles, average signal and noise correlations in all measured populations. Grey dots, individual pairs, 5% randomly chosen from all experiments.