Belief formation and resistance to change of mind are extremely relevant issues today. In particular, beliefs contrary to evidence can affect the well-being of society, preventing or damaging the application of public policies. We are interested in studying the cognitive mechanisms of resistance to change of mind in people who do not have extreme beliefs (those who are not at the extremes of the crack). Understanding these mechanisms will allow us to direct and select the information so that it is more effective in the populations in charge of making decisions or applying public policies.