Special thanks to photographers Piotr & Joanna Tyczynski

Comparative Research

Over evolutionary time, humans have come to inhabit a unique point on the two fundamental axes of animal sociality, competition and cooperation. Comparative research with chimpanzees, one of our closest living relatives, has shown that human prosociality often defies rational self-interest and that in fact, human cooperation extends far beyond the forms of collaboration we see in other species. This distinctive human feature has resulted not only in cooperative behavior but also in unique forms of cognition adapted for excelling in interactive contexts and navigating a complex social world. This trait is so integral to human interaction, that individuals ask the central questions of a decision-making agent – What should I do? What should I believe? – in fundamentally cooperative ways. At the same time, and maybe counterintuitively, our cooperative nature also gives rise to novel and especially powerful forms of competition among human individuals, coalitions, and whole groups. Based on this framework, we ask three interrelated research questions: How are human skills and motivations for cooperation similar to and different from those of our closest living relatives, chimpanzees? How do human children, over the course of ontogeny, reliably develop species-specific cooperative skills and motivations and how does this process differ across populations?




Developmental Research

 Our developmental research with children allows us to explore how our social and cognitive abilities arise and interact with one another over time. From a young age, children display unique social and cognitive abilities that shape our functionality, sociality, and reasoning as mature adults. How does children’s reasoning differ from that of adults and at what point in ontogeny do changes appear? When do children’s cooperative tendencies arise and what are their motivations for such cooperation? We are additionally interested in how these abilities vary across different cultures. How does reasoning differ or compare amongst children from various cultures? How may these differences relate to cultural upbringing and societal function? We ask these questions in order to better understand our developmental journey as humans. We have collaborators in China and Kenya that help us to explore these questions. Our research with children takes place in the form of games, so that children are engaged and exposed to research in a positive way.

Learn more about our research as part of the UC Berkeley Developmental Labs: