Fig. 5.
Mistuned feedback diminishes decision performance. Inset: plots depict a move in parameter space from the baseline model to the mistuned model by changing σβ = 0 → 0:1. In this and subsequent plots, simulation results are given with markers; lines are rational polynomial fits. A: in the controlled duration task, accuracy is lower for the mistuned model than for the baseline model at every trial duration, indicating a loss of performance when σβ increases. B: in the reaction time task, we parametrically plot all [reaction time (RT), accuracy] pairs attained by varying the decision threshold θ. Once again, accuracy is diminished by mistuning for a fixed mean reaction time.