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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Horm Behav. 2009 Aug 5;56(4):436–443. doi: 10.1016/j.yhbeh.2009.07.012

Figure 1.

Figure 1

Mean serum prolactin levels in experienced male marmoset fathers during the prepartum (last two weeks prior to birth) and weeks 1, 2 & 3 following birth. All males under went three succesive treatments during their peripartum periods: lowering prolactin with a D2 agonist, normal control, and increased prolactin in random order. All males were actively involved in infant care during this time. Prolactin levels were significanly different by treatment (p=0.0001) and by week (p=0.03) in the increased condition.