Figure 3: Sural nerve electrophysiological properties in monkeys with sciatic nerve neuropathy (SNN). Electrophysiological recordings were performed for a nerve bundle of the sural nerves of both the ipsilateral side and the contralateral side in five monkeys with SNN. The horizontal axis of each panel denotes the von Frey filament nominal force (in grams) that was applied to the receptive field of the nerve bundle being recorded. The vertical axis of each panel denotes the firing rate of the nerve bundle. Results for each nerve bundle were normalized to the data at the maximum stimulus. Open circles: recording data from the sural nerve of contralateral side. Closed squares: recording data from the sural nerve of ipsilateral side.