When people reach for the same object, walk through a narrow doorway, forage for food, or work together on a shared task, they continuously negotiate—often without noticing—how much to cooperate or ...

The Dyadic Interaction Platform at the German Primate Center, with two participants playing the Cooperation-Competition Foraging game. Photo: Thorge Beilfuß. When people reach for the same object, ...

Scientists used animated humanoid avatars to study how nonverbal cues influence people's behavior. The research offers insight into the brain mechanisms that drive social and economic decision-making.