Fig. 1. Stimulus protocols used in the experiment.
(A) Single-pulse stimulation. Pulse amplitudes range from 10 to 50 μA with pulse duration fixed at 250 μs are applied once per second. (B) Burst stimulation. The number of pulses per burst ranges from 1 to 5, with pulse duration fixed at 250 μs. (C) Burst stimulation. 1–20 pulses per burst. Pulse amplitude: 30 μA. Pulse duration: 100 μs. (D) Burst stimulation. 1–3 pulses per burst. Pulse amplitudes: 30 or 50 μA. Pulse duration: 100 μs.
© Korean J Physiol Pharmacol
