Re-decision behaviour of Bayesian attractor model for switching stimuli.

<p>Noisy exemplars of alternative 1 (blue) and subsequently of alternative 2 (orange) were shown with a switch at 800ms (cf. <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1004442#pcbi.1004442.g002" target="_blank">Fig 2</a>). For varying combinations of sensory uncertainty <i>r</i> and dynamics uncertainty <i>q</i> we plotted the mean (over 1000 trials) percentage of time spent in the correct decision state (grey shading). (A-C) Bottom panels show three example trials for the parameter combinations indicated by the corresponding points in the main panel. Top row: decision state, bottom row: confidence (log-scale) with threshold (grey, dashed line). A: fast, but sometimes fickle re-decisions, B: slower but reliable re-decisions, C: no re-decisions. For point A the mean % time spent in the correct decision is larger, because decision and re-decisions are on average faster. The overall level of confidence reached increases from A to C, as previously shown in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1004442#pcbi.1004442.g004" target="_blank">Fig 4</a>.