Table 2.
Inhibition performance. Descriptive statistics (mean ± standard deviation) of inhibition measures, including standard metrics (upper part) and parameters estimated using a computational-based approach (lower part), as a function of the task and the condition.
| Variable (unit) | Classical stop-signal task | Sensorial stop-signal task | ||||
|---|---|---|---|---|---|---|
| Condition | Condition | |||||
| Control | Otolith | Canal | Control | Otolith | Canal | |
| PInhib (%) | 54 ± 6 | 55 ± 7 | 56 ± 7 | 50 ± 7 | 51 ± 11 | 50 ± 10 |
| SSRT (ms) | 157 ± 41 | 159 ± 36 | 165 ± 49 | 171 ± 44 | 169 ± 50 | 179 ± 59 |
| SSD (ms) | 268 ± 66 | 258 ± 71 | 262 ± 64 | 218 ± 74 | 206 ± 77 | 200 ± 65 |
| µStop (ms) | 109 ± 11 | 112 ± 8 | 106 ± 9 | 126 ± 15 | 105 ± 9 | 89 ± 19 |
| σStop (ms) | 36 ± 8 | 26 ± 5 | 71 ± 19 | 35 ± 7 | 52 ± 9 | 84 ± 17 |
| τStop (ms) | 34 ± 11 | 36 ± 13 | 59 ± 20 | 42 ± 14 | 64 ± 22 | 90 ± 21 |
| TF (%) | 5.13 ± 6.08 | 2.70 ± 2.72 | 1.91 ± 2.45 | 3.38 ± 3.70 | 1.05 ± 0.53 | 4.37 ± 2.29 |
| GF (%) | 0.28 ± 0.64 | 0.26 ± 0.86 | 0.52 ± 1.11 | 1.17 ± 1.21 | 0.63 ± 1.47 | 1.16 ± 1.39 |
PInhib: inhibition accuracy (percentage of Stop-trials with successful inhibition); SSRT: stop signal reaction time; ms: milliseconds; SSD: stop signal delay; µStop: mean of the Gaussian component of the SSRTs distribution; σStop: standard deviation of the Gaussian component of the SSRTs distribution; τStop: mean of the exponential component of the SSRTs distribution; GF: Go failure (percentage of Go stimuli missed by the subject); TF: trigger failure (percentage of stop-signal missed by the subject).