Fig. 2.
Relationship between brain function, paternal behavior, and reproductive biology. (A) Main effect of the contrast Own Child–Adult for all emotions combined, Bonferroni-corrected P < 0.001, uncorrected P < 1.04 × 10−8. (B) Plot of caregiving vs. β-contrast values Own Child–Adult from functionally derived VTA ROI. The dotted red line indicates the score (72) at which mothers and fathers are equally responsible for their child’s daily care. (C) Plot of β-contrast values Own Child–Adult from VTA ROI vs. residual testes volume (regressed against height and testosterone).