Virtual Arrowhead Task
This is a standalone version of the Virtual Arrowhead Task, used in the above study to simulate prehistoric cultural transmission dynamics. The player initially copies the arrowhead design of one of six previous participants, then uses individual trial-and-error learning to improve his/her arrowhead design over a series of hunts. The first phase simulates indirect (or success) bias, given that most players choose to copy the most successful model, and consequently results in low arrowhead diversity across participants. The subsequent individual learning phase simulates guided variation, and results in higher diversity across participants. This represents a test of Bettinger and Eerkens' (1999) hypothesis that the unusually low arrowhead diversity observed in prehistoric Nevada resulted from indirect bias, and the unusually high diversity observed in prehistoric California resulted from guided variation.