Skip to main content
. 2017 Jul 26;118(5):2636–2653. doi: 10.1152/jn.00318.2017

Fig. 5.

Fig. 5.

Unbounded model comparisons: 4 variants of accumulator dynamics. A: binary choice threshold estimates as a function of stimulus duration. pDDM and cbDDM, usDDM, hpfDDM, and signal detection theory (SDT) threshold predictions were averaged across 12 subjects. Gray shading shows 95% CI for SDT estimates. B: mean goodness-of-fit scores at individual stimulus duration for binary responses (top) and confidence responses (bottom). C: marginal goodness-of-fit scores across all durations for binary responses (top) and confidence responses (bottom). Horizontal bars: *positive evidence that hpfDDM performs better than pDDM; ***very strong evidence against usDDM. Error bars show lower and upper quartiles. > Symbol indicates that BICpDDM > BIChpfDDM. D–H: confidence histograms aggregated across all stimulus levels for 12 subjects. Same conventions as A for curves. Differences between pDDM and hpfDDM are barely evident in D–H; the most pronounced difference is observed in D for confidence near 100%.