Geometric discounting of reward leads to magnitude-sensitive simulated reaction times across a range of nonlinear subjective utility functions, with decisions postponed for low equal-value option sets.

Simulation parameters were: prior mean and variance , observation noise variance , temporal cost γ = 0.9. Non-decision time was implicitly zero. and simulation timestep dt = 5 × 10−3. Lines are the mean reaction time for 104 simulations, 95% confidence intervals are shown as red shading (mostly invisible because smaller than the linewidth). (PDF)