A cognitive bias often reported for schizophrenia is the tendency to make decisions based on little evidence, namely the jumping to conclusions (JTC) bias. The beads task (Huq et al., 1988) is the most commonly used task to investigate the JTC and different attempts were made to explain the JTC. One proposition is that patients might miscomprehend the task and assume volatility, i.e. a change of ...

Within the predictive coding framework the brain is defined as an inference machine that continuously tries to predict its sensory inputs on the basis of beliefs about the world and updates those beliefs in the presence of contradictory sensory data (i.e. prediciton errors; Friston, 2005). Neurobiologically, the weighting and further processing of those prediction errors is thought to be influenced ...