Table 5. Tibial SSEPs in patients with hereditary degenerative ataxias.
SSEPs, somatosensory evoked potentials; IPL, interpeak latency
Latency and IPL | Upper limit (mean ± SD) | Lower limit (mean ± SD) |
N22 | 30.4 ± 1.41 | 23.16 ± 1.68 |
P31 | 43.26 ± 1.96 | 31.32 ± 1.45 |
P37 | 60.92 ± 2.93 | 38.58 ± 1.49 |
IPL N22-P37 | 30.50 ± 3.03 | 15.41 ± 1.87 |
IPL N22-P31 | 12.85 ± 1.51 | 8.16 ± 1.37 |