Table 1.
Data Set | Baseline (A) | Threshold (b) | Drift Rate (v) | Nondecision Time (T0) | ||
---|---|---|---|---|---|---|
Accurate | Medium | Fast | ||||
Monkey S (sessions) | 30 ± 8.1 | 277 ± 4.2 | 144 ± 14.4 | 135 ± 4.7 | 0.55 ± 0.01 | 81 ± 8.4 |
Monkey Q (sessions) | 64 ± 8.1 | 320 ± 4.0 | 121 ± 10.7 | 105 ± 4.9 | 0.59 ± 0.01 | 138 ± 7.1 |
Population | 85 | 325 | 149 | 141 | 0.57 | 101 |
Best-fitting parameters for LBA model with baseline (A), drift rate (v), and nondecision time (T0) shared and threshold (b) variable across SAT conditions. Session fits are the mean ± SE of parameter values estimated separately for each session for a given monkey. Population fit is estimated across all trials, sessions, and monkeys. Units for A, b, arbitrary units of activation; v, activation/ms; T0, ms.