Table 3.
Paired (within-group) comparisons (Wilcoxon signed-rank test) for both young and old adults. Mean values [expressed at % of mean MEP at the warning signal (WS)] and standard deviation (SD) are given
| Young | Old | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Left FDI | Right FDI | Left FDI | Right FDI | ||||||
| Mean (SD) | p value | Mean (SD) | p value | Mean (SD) | p value | Mean (SD) | p value | ||
| WS | 100 | 100 | 100 | 100 | |||||
| −400 | 103 (29) | 0.826 | 97 (20) | 0.594 | 99 (17) | 0.721 | 106 (20) | 0.445 | |
| −300 | 104 (26) | 0.875 | 97 (18) | 0.245 | 101 (25) | 0.959 | 111 (24) | 0.114 | |
| −200 | 107 (19) | 0.300 | 92 (28) | 0.177 | 94 (21) | 0.333 | 102 (11) | 0.721 | |
| −100 | 91 (22) | 0.124 | 78 (28) | 0.019* | 89 (14) | 0.037* | 100 (18) | 0.646 | |
| IS | 81 (16) | 0.005* | 76 (28) | 0.026* | 83 (23) | 0.037* | 91 (23) | 0.285 | |
| −400 | 103 (29) | 97 (20) | 99 (17) | 106 (20) | |||||
| −300 | 104 (26) | 0.975 | 97 (18) | 0.778 | 101 (25) | 0.878 | 111 (24) | 0.798 | |
| −200 | 107 (19) | 0.975 | 92 (28) | 0.875 | 94 (21) | 0.285 | 102 (11) | 0.285 | |
| −100 | 901 (22) | 0.055 | 78 (28) | 0.048* | 89 (14) | 0.059 | 100 (18) | 0.241 | |
| IS | 81 (16) | 0.019* | 76 (28) | 0.011* | 83 (23) | 0.059 | 91 (23) | 0.139 | |
| −300 | 104 (26) | 97 (18) | 101 (25) | 111 (24) | |||||
| −200 | 107 (19) | 0.638 | 92 (28) | 0.363 | 94 (21) | 0.333 | 102 (12) | 0.169 | |
| −100 | 91 (22) | 0.064 | 78 (28) | 0.041* | 89 (14) | 0.059 | 100 (18) | 0.028* | |
| IS | 81 (16) | 0.004* | 76 (28) | 0.019* | 83 (23) | 0.047* | 91 (23) | 0.047* | |
| −200 | 107 (19) | 92 (28) | 94 (21) | 102 (11) | |||||
| −100 | 91 (22) | 0.013* | 78 (28) | 0.030* | 89 (14) | 0.169 | 100 (18) | 0.445 | |
| IS | 81 (16) | 0.001* | 76 (28) | 0.013* | 83 (23) | 0.059 | 91 (23) | 0.074 | |
| −100 | 91 (22) | 78 (28) | 89 (14) | 100 (18) | |||||
| IS | 81 (16) | 0.084 | 76 (28) | 0.683 | 83 (23) | 0.386 | 91 (23) | 0.093 | |
*p < 0.05 (significant difference between TMS intervals)