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  1. Behavioral and genetic correlates of the neural response to infant crying among human fathers.

    Social Cognitive and Affective Neuroscience 9(11):1704 (2014) PMID 24336349 PMCID PMC4221211

    Although evolution has shaped human infant crying and the corresponding response from caregivers, there is marked variation in paternal involvement and caretaking behavior, highlighting the importance of understanding the neurobiology supporting optimal paternal responses to cries. We explored t...
  2. Differential neural responses to child and sexual stimuli in human fathers and non-fathers and their hormonal correlates.

    Psychoneuroendocrinology 46:153 (2014) PMID 24882167

    Despite the well-documented importance of paternal caregiving for positive child development, little is known about the neural changes that accompany the transition to fatherhood in humans, or about how changes in hormone levels affect paternal brain function. We compared fathers of children age...
  3. Sex differences in the neural and behavioral response to intranasal oxytocin and vasopressin during human social interaction.

    Psychoneuroendocrinology 39:237 (2014) PMID 24157401 PMCID PMC3842401

    Both oxytocin (OT) and vasopressin (AVP) are known to modulate social behavior, and dysfunction in both systems has been postulated as a potential cause of certain psychiatric disorders that involve social behavioral deficits. In particular, there is growing interest in intranasal OT as a potent...
  4. Testicular volume is inversely correlated with nurturing-related brain activity in human fathers.

    PNAS 110(39):15746 (2013) PMID 24019499 PMCID PMC3785737

    Despite the well-documented benefits afforded the children of invested fathers in modern Western societies, some fathers choose not to invest in their children. Why do some men make this choice? Life History Theory offers an explanation for variation in parental investment by positing a trade-of...
  5. Effects of intranasal oxytocin and vasopressin on cooperative behavior and associated brain activity in men.

    Psychoneuroendocrinology 37(4):447 (2012) PMID 21840129 PMCID PMC3251702

    The neural mechanisms supporting social bonds between adult men remain uncertain. In this double-blind, placebo-controlled study, we investigate the impact of intranasally administered oxytocin (OT) and vasopressin (AVP) on behavior and brain activity among men in the context of an iterated Pris...
  6. Effects of intranasal oxytocin and vasopressin on cooperative behavior and associated brain activity in men.

    Psychoneuroendocrinology 37(4):447 (2012) PMID 21840129 PMCID PMC3251702

    The neural mechanisms supporting social bonds between adult men remain uncertain. In this double-blind, placebo-controlled study, we investigate the impact of intranasally administered oxytocin (OT) and vasopressin (AVP) on behavior and brain activity among men in the context of an iterated Pris...
  7. Effects of intranasal oxytocin and vasopressin on cooperative behavior and associated brain activity in men.

    Psychoneuroendocrinology 37(4):447 (2012) PMID 21840129 PMCID PMC3251702

    The neural mechanisms supporting social bonds between adult men remain uncertain. In this double-blind, placebo-controlled study, we investigate the impact of intranasally administered oxytocin (OT) and vasopressin (AVP) on behavior and brain activity among men in the context of an iterated Pris...