Table 1. Average demographic data (s.d. in brackets) for the different drug groups in the three-staircase auditory SST in experiment 1.
| Group | Age | M/F |
EPQ |
BIS | STAI-T | GO_RT | SSRT | Pinhibit
% |
|||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Neur | Extr | Short | Med | Long | |||||||
| Placebo | 21 (2) | 3/5 | 13 (6) | 3 (1) | 18 (2) | 39 (2) | 426 (19) | 238 (26) | 79 (9) | 51 (2) | 6 (3) |
| Buspirone | 20 (2) | 5/4 | 12 (5) | 6 (2) | 19 (2) | 41 (3) | 410 (51) | 230 (38) | 70 (10) | 49 (3) | 5 (2) |
| Triazolam | 22 (2) | 4/5 | 13 (5) | 5 (2) | 16 (3) | 36 (3) | 428 (38) | 237 (31) | 76 (12) | 52 (4) | 8 (3) |
| Pregabalin | 21 (1) | 4/4 | 12 (6) | 7 (3) | 20 (3) | 37 (2) | 411 (44) | 226 (22) | 74 (13) | 51 (4) | 4 (2) |
Abbreviations: BIS, scores on the behavioural inhibition questionnaire; Extr, EPQ extraversion; Go_RT, go reaction time on Go trials in ms; Med, intermediate; M/F, number of male and female participants per group; Neur, EPQ neuroticism; Pinhibit, probability of inhibition on Stop trials; SSRT, stop-signal reaction time (mean stop-signal delay on the intermediate staircase subtracted from median Go reaction time); SST, stop-signal task; STAI-T, Spielberger trait anxiety. There were no statistical differences between the groups.