Mean reaction times and standard deviations (in milliseconds) for each substance, condition and target type separately*
| Group; mean RT ± SD | ANOVA results | |||||
|---|---|---|---|---|---|---|
| Substance; condition | Dominant | Subordinate | Effect/interaction | F | p value | Direction/post hoc |
| SOA of 150 ms | ||||||
| Haloperidol | Target type | 4.96 | 0.033 | Dominant < subordinate linear F = 4.74, p = 0.037 | ||
| Condition | 3.17 | 0.049 | ||||
| Congruent | 464.86 ± 67.4 | 480.39 ± 61.5 | ||||
| Incongruent | 483.68 ± 76.3 | 488.40 ± 65.0 | ||||
| Unbiased | 481.08 ± 56.5 | 494.46 ± 59.5 | ||||
| L-Dopa | Target type | 0.48 | 0.49 | Linear F = 6.48, p = 0.016 | ||
| Condition | 3.04 | 0.06 | ||||
| Congruent | 485.54 ± 71.3 | 486.43 ± 68.8 | ||||
| Incongruent | 463.70 ± 67.6 | 473.37 ± 69.9 | ||||
| Unbiased | 474.93 ± 64.1 | 475.87 ± 82.1 | ||||
| Placebo | Target type | 2.55 | 0.12 | Dominant < subordinate | ||
| Condition | 0.73 | 0.49 | ||||
| Congruent | 478.17 ± 51.5 | 483.88 ± 55.1 | ||||
| Incongruent | 470.28 ± 58.0 | 490.63 ± 70.3 | ||||
| Unbiased | 470.48 ± 61.6 | 474.45 ± 67.7 | ||||
| SOA of 750 ms | ||||||
| Haloperidol | Target type | 3.89 | 0.06 | Subordinate < dominant | ||
| Condition | 0.02 | 0.98 | ||||
| Unbiased | 442.65 ± 99.7 | 428.86 ± 76.2 | ||||
| Congruent | 442.52 ± 105.6 | 431.84 ± 83.4 | ||||
| Incongruent | 437.81 ± 70.0 | 421.36 ± 69.1 | ||||
| L-Dopa | Target type | 1.03 | 0.32 | |||
| Condition | 0.61 | 0.56 | ||||
| Unbiased | 425.19 ± 86.2 | 417.48 ± 76.9 | ||||
| Congruent | 425.75 ± 86.6 | 423.20 ± 63.5 | ||||
| Incongruent | 425.81 ± 82.0 | 422.10 ± 103.9 | ||||
| Placebo | Target type | 0.01 | 0.98 | Linear F = 3.30, p = 0.08 | ||
| Condition | 1.19 | 0.31 | ||||
| Unbiased | 429.13 ± 79.0 | 446.42 ± 116.6 | ||||
| Congruent | 429.86 ± 78.46 | 422.49 ± 62.4 | ||||
| Incongruent | 440.18 ± 86.88 | 440.24 ± 70.2 | ||||
ANOVA = analysis of variance; L-Dopa = levodopa; RT = reaction time; SD = standard deviation; SOA = stimulus onset asynchronies.
↵* Results of 3 (condition) × 2 (target type) ANOVAs on RTs for each substance separately are presented. Target type × condition interactions are not displayed because they were not significant in any case (all p > 0.4).