Table 1 Mean MMN amplitudes (±SE) at F Z plus t -statistic and significance values resulting from 2-tailed comparison of means against zero for all placebo derived deviants in the low amplitude group
| Deviant | Mean amplitude (±SE) | t value | Significance |
|---|---|---|---|
| Duration | −0.67 μV (0.54) | −3.53 | p = .010 |
| Frequency | −1.18 μV (1.09) | −3.05 | p = .019 |
| Gap | 0.95 μV (0.78) | 0.35 | p = .740 |
| Intensity | −1.48 μV (1.15) | −3.64 | p = .008 |
| Location | −1.01 μV (0.91) | −3.14 | p = .016 |