Parameter values in fitting the reduced LCA.

Fitted parameters of the linear approximation (Ornstein-Uhlenbeck) of the leaky competing accumulator model in the inhibition-dominant regime under the initial condition hypothesis . Each row represents the results for each of the four participants who show a reward bias. The model is explained in the main text and summarized in Equations (6, 8, 10, 13). The absolute value of is inversely related to the time scale of the decision-making process and the minus sign means the process is in inhibition-dominance. and denote a participant's personal sensitivity to the stimulus, the overall strength of the reward bias, the level of the initial variability and the non-decision time respectively.