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In my work I explore a wide range of topics at the intersection of human behavior, evolution, and development. My approach is interdisciplinary and driven by the quest for theoretical synthesis. Over the years I have developed a number of broad, integrative models, including the Adaptive Calibration Model of individual differences in stress responsivity (with Bruce Ellis and Birdie Shirtcliff); an evolutionary-developmental model of sex differences in attachment styles; and a unifying life history framework for evolutionary psychopathology. Most of my current empirical work is devoted to testing, advancing, and refining these models with a variety of research methods.
My other contributions include novel hypotheses on the evolution of personality and self-regulation; the application of multivariate effect sizes to the measurement of sex differences in personality and behavior; theoretical and methodological work on developmental plasticity and differential susceptibility to the environment; a conflict analysis of fetal programming by maternal stress; a model of the conditions for visual experience before birth; a canalization hypothesis on the early development of mirror neurons; and a model of the transition to middle childhood as a developmental switch point. For more research topics, check out my publications page.
In 2016 I was granted the Early Career Award of the Human Behavior and Evolution Society (HBES).