Simple Learning and Decision Mechanisms Underlying Culture Peter Todd ABC, Max Planck Simple mechanisms for gathering information from social partners, and for making decisions on the basis of that information, may underlie the construction of socially shared (cultural) knowledge. In turn, when these mechanisms are used by a group of individuals, they can affect the distribution of behavior at the population level. I will show these effects through a simulation of the use of the recognition heuristic for decision making in a population of simple agents that exchange information with each other, in which a J-shaped distribution of behavior emerges.