Fig. 2 | Scientific Reports

Fig. 2

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

Fig. 2

Grand averages of multi-modal pain-related evoked potentials for Visit 1 (dark grey) and Visit 2 (light grey). Experiment 1: pain-related evoked potentials in response to contact heat (CHEPs) and pinprick (PEPs), and intra-epidermal electrical stimulation (IES, IEEPs) applied at 2 × electrical detection threshold (EDT), were recorded. Experiment 2: IEEPs were recorded in response to IES at different stimulation intensities (1.5×, 2×, 4 × EDT, and 0.5 mA). CHEPs contact heat evoked potentials, EDT electrical detection threshold, IEEPs intra-epidermal electrically evoked potentials, PEPs pinprick evoked potentials.

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