Table 1 Characteristics of multi-modal pain-related evoked potentials in Experiment 1.

From: Test–retest reliability of intra-epidermal electrically evoked potentials in comparison with other modalities and across stimulation intensities

Stimulation

Visit

N-latency (ms)

NP-amplitude (μV)

Pain rating (NRS)

CHEPs

Visit 1

318.8 (29.3)

31.9 (14.1)

3.6 (1.6)

Visit 2

310.6 (33.9)

31.1 (12.6)

2.8 (1.4)

PEPs

Visit 1

88.2 (28.3)

27.2 (9.1)

2.2 (1.1)

Visit 2

93.1 (31.4)

28.3 (10.6)

1.8 (1.1)

IEEPs

Visit 1

155.1 (27.7)

25 (11)

1.5 (1.1)

Visit 2

156.1 (35.1)

24.5 (10.1)

1.2 (0.7)

  1. IES was applied at 2 × electrical detection threshold (EDT). The parameters (N-latencies, NP-amplitudes, and pain ratings) are reported as mean (SD).
  2. CHEPs contact heat evoked potentials, IEEPs intra-epidermal electrically evoked potentials, NRS numerical rating scale, PEPs pinprick evoked potentials.
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