Unbeknownst to them, the other group members are research assistants in disguise, and about a third of participants follow their lead and choose the wrong line.
Such alternative forms of group-level selection can have different consequences for evolutionary dynamics, and can interact with within-group social learning in different ways.
Decreased frequencies of payoff-based learning weaken selection against cooperation within the group.
When asked in the presence of Confederates who were in on the experiment and who intentionally selected the wrong line, around 75 percent of participants conformed to the group at least once. Hence, panel A should mainly be viewed as a reference for panel B. Accordingly, we consider a stochastic model for cultural evolution in a finite population of fixed size n.
View Article Google Scholar 15. For instance, adding random learning to payoff-based learning can facilitate the rapid solution of coordination problems  , and conformism can stabilise cooperative equilibria under specific conditions  ,  — .
For example, in a 2003 study , researchers found that how people evaluated a particular welfare policy depended little on how generous it was—and mostly on whether their own party supported it. Switching probabilities depend on the payoff difference between groups where cooperation is fixated and groups where defection is fixated.
J Econ Behav Organ 53: The frequency of conformist updating was varied between 0 and 1, in steps of 0.
Accordingly, payoff-based learning causes a group to spend a lot of time in polymorphic states before it reaches one of the absorbing states. Have you ever wondered what your personality type means?
Such an emerging differentiation, in which conformist learners perform one behaviour and payoff-based learners perform another behaviour, cannot be attained by groups that are homogeneous with respect to their social learning strategies. A woman reads a book for her book club and really enjoys it. Effect of conformism on the persistence of behavioural polymorphism in an evasion game. When asked individually, the participants' answers varied considerably.
In blue regions arrows to the right , A tends to increase; in red regions arrows to the left , A tends to decrease. View Article Google Scholar 32. Some other definitions include: Semantic Scholar estimates that this publication has 935 citations based on the available data.