Figure 6.

Spike correlation ratios (correlated/noncorrelated neuron pairs) during Pavlovian and operant conditioning. The higher the ratio, the greater the number of correlated pairs, or the smaller the variance in population dynamics. Conversely, a lower ratio indicates fewer correlated pairs and a more heterogeneous population dynamic. In comparing coordinated activity in adults and adolescents during stimulus presentation, we observed an age-mediated different pattern of correlated activity in both Pavlovian (A) and operant (B) conditioning. *p < 0.05, main effect of age. Data are mean ± SEM.