November 27 2017

UCLA's Center for Behavior, Evolution, and Culture Seminar Series

Neural Encoding and Cognitive Consequences of Human Social Networks

Carolyn Parkinson
UCLA

The cognitive demands of navigating large groups comprised of many varied and enduring social bonds are thought to have significantly shaped human brain evolution. Yet, much remains to be understood about how the human brain tracks, encodes, and is influenced by the social networks in which it is embedded. The work presented in this talk integrates approaches from social psychology, cognitive neuroscience, and social network analysis in order to better understand how the structure of the social world is encoded in the human brain and the cognitive consequences of this structure.

Monday, November 27
12:00-1:30 p.m.
Haines Hall 352, UCLA


December 4 2017

UCLA's Center for Behavior, Evolution, and Culture Seminar Series

"The Origins of Prosocial Religions and the Emergence of Large-Scale Cooperation and Conflict"

Ara Norenzayan
University of British Columbia

The rise of large-scale cooperation and the spread of parochial-prosocial religions in the last 12 millennia are two longstanding puzzles, one of human psychology, and the other of cultural history. I present a theory, maintaining that these two developments were importantly linked and mutually energizing. It is grounded in the idea that although supernatural beliefs and practices originally arose as nonadaptive by-products of innate cognitive functions, particular cultural variants were then selected in a long-term, cultural evolutionary process. A suite of culturally evolved religious beliefs and practices characterized by increasingly potent, moralizing, supernatural agents, credible displays of faith, and other psychologically active elements conducive to social solidarity promoted large-scale cooperation with co-religionists, contributing to success in intergroup competition and conflict. In turn, prosocial religious beliefs and practices spread and aggregated as these successful groups expanded and outcompeted rival groups through high fertility rates, conversions, cultural imitation, and conquest. In doing so, these relentlessly expanding human populations have brought about the Anthropocene, dominating every ecological niche and gravely straining the planet's entire ecosystem. Evidence for some of these hypotheses, alternative accounts, and intriguing open questions are discussed.

Monday, December 4
12:00-1:30 p.m.
Haines Hall 352, UCLA