Selected publications (pdf)

• Hagen EH (under review) Gestures of despair and hope: A strategic reinterpretation of deliberate self-harm.
• Hagen EH, Barrett HC and Price ME (2006) Do human parents face a quantity-quality tradeoff?: Evidence from a Shuar community. American Journal of Physical Anthropology.
• Hagen EH and Barrett (in press) Perinatal sadness among Shuar women: A test of the psychic pain hypothesis.
• Hagen EH (1999) The functions of postpartum depression Evolution and Human Behavior.
• Hagen EH (2003) The bargaining model of depression, appearing in Genetic and Cultural Evolution of Cooperation
• Hagen EH (2002) Depression as bargaining: the case postpartum. Evolution and Human Behavior.
• Hagen EH, Watson PJ and Thomson A (2004) Love’s labour’s lost: Depression as an evolutionary adaptation to obtain help from those with whom one is in conflict.
• Hagen EH (under review) Delusions as exploitative deception.
• Sullivan RJ and Hagen EH (2002) Psychotropic substance-seeking: evolutionary pathology or adaptation? Addiction 97:389-400.

• Hammerstein P and Hagen EH (2006) Evolutionary genetics: Broken cogs or strategic agents? Science.
• Hammerstein P, Hagen EH and Laubichler MD (in press) The strategic view of biological agents. Biological Theory.
• Hagen EH and Hammerstein P (2005) Evolutionary biology and the strategic view of ontogeny Research in Human Development.
• Hagen EH and Hammerstein P (in press) Game theory and human evolution: A critique of some recent interpretations of experimental games. Theoretical Population Biology.
• Hammerstein P and Hagen EH (2005) The second wave of evolutionary economics in biology. Trends in Ecology and Evolution.
• Hammerstein P, Hagen EH, Herz AVM, and Herzel H. (in press) Robustness: A key to evolutionary design Biological Theory.
• Hagen EH (2005) Controversies surrounding evolutionary psychology In The Evolutionary Psychology Handbook, D. Buss, ed. Wiley.
• Hagen EH and Symons D (forthcoming) Natural psychology: The EEA and the structure of cognition
• The Evolutionary Psychology FAQ

• Hess NH and Hagen EH (in press). Psychological adaptations for assessing gossip believability Human Nature.
• Hess NH and Hagen EH (in press). Sex differences in informational aggression: Psychological evidence from young adults Evolution and Human Behavior.
• Hess NH and Hagen EH (2003) Informational warfare (pdf 700k)

• Hagen EH and Bryant GA (2003) Music and dance as a coalition signaling system. Human Nature 14:21-51.
• Novak BM, Hagen EH, Hoff S, and Viswanathan A (1994) Synthesis and Photochemistry of Sulfonium Ion Polymers Arylated and Alkylated Poly(P Phenylene Sulfide) Derivatives. Macromolecules 27 (7):1985 1986.
• Hagen EH (2004) Megadontia and bipedalism: Did habitual bipedalism evolve in early hominids to reduce the energetic costs of increasing head weight? American Association of Physical Anthropologists Annual Meeting. Tampa, Florida.
• Hagen EH and Walker PL (1994) A topographic approach to microwear.
• Hagen EH and Walker PL (n.d.) A topographic approach to microwear.