Figure 7.

Group data showing the effect of GBZ application on signal and noise correlations. Noise correlations (i.e., the correlation of the firing rate of a pair of recording sites in response to presentations of the same stimulus) and signal correlation (i.e., the correlation between the mean responses of the same pair of recording sites to different stimuli) were computed from the responses of each pair of recording sites responding significantly to vocalizations. Left, Mean noise correlation between pairs of neuronal responses before (white) and after (black) GBZ application. Right, Mean signal correlation between pairs of neurons before and after GBZ application. *p < 0.001.