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. 2023 Apr 24;15(4):e38051. doi: 10.7759/cureus.38051

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