Topic: expected rewards

Humans tend to repeat past actions, with habits as extreme case. With each execution of an action this repetition bias increases the probability to repeat this action. However, there is a lack of experiments investigating repetition bias.To test for the presence of a repetition bias, we developed a new sequential decision-making task (see Figure). For this task, participants had to collect points with four moves and meet a trial-specific goal as closely as possible. To ensure frequent repetition of at least one sequence of actions, we informed participants about a default action sequence that