Table 1.
Number of cells with positive changes in response amplitude versus the total number of cells shown, respectively, for each stimulation protocol and each time point. If there is no systematic potentiation or depression, on average, there should be as many cells with positive as with negative changes in response amplitude
| Time (min) | Number of cells with positive response change | Total number of cells | Wilcoxon signed-rank test |
|---|---|---|---|
| Combined SCT and skin burst protocol | |||
| 15–25 | 4 | 8 | 1 |
| 25–35 | 3 | 8 | 1 |
| 35–45 | 5 | 8 | 0.54 |
| 45–55 | 7 | 10 | 0.28 |
| 55–65 | 3 | 7 | 1 |
| 65–75 | 6 | 9 | 0.65 |
| 75–85 | 4 | 8 | 0.84 |
| 85–95 | 6 | 7 | 0.05 |
| Skin burst and simultaneous single IO stimulation protocol | |||
| 5–15 | 2 | 6 | 0.84 |
| 15–25 | 3 | 5 | 0.63 |
| 25–35 | 3 | 5 | 0.43 |
| 35–45 | 3 | 5 | 0.63 |
| Skin burst and delayed single IO stimulation protocol | |||
| 5–15 | 1 | 5 | 0.31 |
| 15–25 | 2 | 5 | 0.31 |
| 25–35 | 3 | 4 | 0.25 |
Wilcoxon signed-rank test gives the P value (rightmost column) for the null hypothesis that there is no potentiation. Note that in pure chance data, 1 out of the 20 P values is expected to fall within the 5% range, which is also the case here (1 out of the 15 comparisons made)