Table 4.

Pearson correlation coefficients (r) for CPP scores and phospho-protein levels

	pERK		pCREB		FosB		ΔFosB
	Male	Female	Male	Female	Male	Female	Male	Female
NAc	0.79	0.81	0.51	0.78	0.29	0.23	0.76	0.34
CPu	0.39	0.08	−0.04	−0.22	0.76	0.76	0.37	0.77
PfC	0.86	0.76	0.35	0.01	−0.03	0.35	−0.08	0.22
HIP	0.67	0.70	−0.02	0.65	−0.15	−0.17	0.15	0.03

Correlations were assessed between CPP scores and protein levels normalized to saline controls of the respective sex (n = 4 animals per group). Bold values indicate a significant correlation at p < 0 .05. See Figure 5 for a representative plot.