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Elizabeth Adkins-Regan


Uris Hall, Room 218
W361 Mudd Building



Research Focus

Hormonal, neuroendocrine, and behavioral mechanisms responsible for the development and expression of animal social behavior, especially reproductive behavior. Recent and current projects from my laboratory include: (a) mechanisms of long-term monogamous relationships in the zebra finch, (b) development of preferences for opposite-sex partners in the zebra finch, (c) predictors of fertilization in the Japanese quail, (d) maternal effects on offspring fitness produced by sex steroid hormones in egg yolks, (e) neuroendocrine mechanisms underlying species differences in social behavior and social organization, and (f) phylogeny of vertebrate sex determining mechanisms.


  • Neurobiology and Behavior
  • Psychology

Graduate Fields

  • Cognitive Science
  • Neurobiology and Behavior


  • Cornell Population Center


  • Smiley, K. O. and Adkins-Regan, E. (2016). Relationship between prolactin, reproductive experience, and parental care in a biparental songbird, the zebra finch (Taeniopygia guttata). General and Comparative Endocrinology, in press.
  • Smiley, K. O. and Adkins-Regan, E. (2016). Prolactin is related to individual differences in parental behavior and reproductive success in a biparental passerine, the zebra finch (Taeniopygia guttata). General and Comparative Endocrinology, in press.
  • Baran, N. M., Sklar, N. C. and Adkins-Regan, E. (2015). Developmental effects of vasotocin and nonapeptide receptors on early social attachment and affiliative behavior in the zebra finch. Hormones and Behavior 78, 20-31.
  • Brennan, P. L. R. and Adkins-Regan, E. (2014). Endocrine regulation and sexual differentiation of avian copulatory sexually selected characters. Neuroscience and Biobehavioral Reviews 46, 557-566.
  • Adkins-Regan, E. and Reeve, H. K. (2014). Sexual dimorphism in body size and the origin of sex-determination systems. American Naturalist 183, 519-536.
  • Banerjee, S. B., Dias, B. G., Crews, D. and Adkins-Regan, E. (2013). Newly paired zebra finches have higher dopamine levels and immediate early gene Fos expression in dopaminergic neurons. European Journal of Neuroscience, 38, 3731-3739.
  • Finseth, F. R., Iacovelli, S. R., Harrison, R. G. and Adkins-Regan, E. K. (2013). A non-semen copulatory fluid influences the outcome of sperm competition in Japanese quail. Journal of Evolutionary Biology, 26, 1875-1889.
  • Adkins-Regan, E., Banerjee, S. B., Correa, S. M., and Schweitzer, C. (2013). Maternal effects in quail and zebra finches: Behavior and hormones. General and Comparative Endocrinology, 190, 34-41.
  • Adkins-Regan, E. (2012). Hormonal organization and activation: evolutionary implications and questions. General and Comparative Endocrinology 176, 279-285.
  • Banerjee, S. B., Arterbery, A., Fergus, D. J. and Adkins-Regan, E. (2012). Deprivation of maternal care has long-lasting consequences for the hypothalamic-pituitary-adrenal axis of zebra finches. Proceedings of the Royal Society B 279, 759-766.
  • Adkins-Regan, E. (2011). Neuroendocrine contributions to sexual partner preference in birds. Frontiers in Neuroendocrinology 32, 155-163.
  • Adkins-Regan, E., DeVoogd, T. J. and Moore, J. M. (2010). Social behavior and bird song from a neural and endocrine perspective. In Szekely, T., Moore, A and Komdeur, J. (eds.), Social Behaviour: Genes, Ecology and Evolution, pp. 59-84. Cambridge UK: Cambridge University Press.
  • Gee, J. M., Tomaszycki, M. and Adkins-Regan, E. (2009). Sex-dependent species discrimination in auditory forebrain of naturally hybridizing birds. Brain Behavior and Evolution 74, 258–267.
  • Balthazart, J., Arnold, A. and Adkins-Regan, E. (2009). Sexual differentiation of brain and behavior in birds. In Pfaff, D. et al. (Eds.), Hormones, Brain and Behavior, second edition. Academic Press (Elsevier).
  • Rutkowska, J. and Adkins-Regan, E. (2009). Learning enhances female control over reproductive investment in the Japanese quail. Proceedings of the Royal Society B 276, 3327-3334.
  • Adkins-Regan, E. (2008). Do hormonal control systems produce evolutionary inertia? Philosophical Transactions of the Royal Society B 363, 1599-1609.
  • Adkins-Regan, E. and Tomaszycki, M. (2007). Monogamy on the fast track. Biology Letters 3, 617-619.
  • McGraw, K. J., Correa, S. M. and Adkins-Regan, E. (2006). Testosterone upregulates lipoprotein status to control sexual attractiveness in a colorful songbird. Behavioral Ecology and Sociobiology 60, 117-122.
  • Pilz, K. M., Adkins-Regan, E. and Schwabl, H. (2005). No sex difference in yolk steroid concentrations of avian eggs at laying. Biology Letters 1, 318-321.
  • Correa, S. M., Adkins-Regan, E. and Johnson, P. A. (2005). High progesterone during avian meiosis biases sex ratios toward females. Biology Letters 1, 215-218.
  • Adkins-Regan, E. (2005). Hormones and Animal Social Behavior. Princeton University Press. (Monographs in Behavior and Ecology)