Fig.3.

Pattern of nerve block and repetitive firing induced by different stimulation intensities and frequencies at temperatures of 37 °C (A), 27 °C (B), 20 °C (C), and 15 °C (D). The dark areas represent the stimulation intensity ranges causing nerve block as shown in Fig. 2 B or D. The hatched areas represent the repetitive firing as shown in Fig. 2 C. The white areas represent normal conduction as shown in Fig.2 A. Axon diameter: 10 µm.