Fig. 5

Sex differences in inter-regional correlations of zif268-ir cell density. A A heatmap showing correlation coefficients (r) of the density of zif268-ir cells between each brain region in males and females. Males and females showed distinct patterns of significant inter-regional correlations of zif268-ir cell density. * Indicates significant correlations (p < 0.05) and green boxes indicate sex differences between the correlations (p < 0.05). B Brain network maps were generated with correlations with coefficients larger than 0.67 or smaller than − 0.67 in males (left) and females (right) with p < 0.1. Red lines indicate positive correlations with wider lines indicating larger coefficients and blue lines indicate negative correlations with wider lines indicating smaller coefficients