Figure 4.

Mechanisms of deciding to switch task rules proposed in Purcell et al. (137). (a) Subjects report motion direction using either the upper or lower pair of direction targets depending on the context. (b) The context is not cued and must be inferred from feedback. Subjects switch context after errors (open circles; color indicates motion coherence) depending on the history of feedback and motion coherence on the previous trials (top). Behavior could be modeled as the accumulation of switch evidence to a bound (bottom). Switch evidence is formed by combining feedback and the certainty of the previous trial. Adapted with permission from Reference 137; the authors hold the copyright.