Figure 2.

Effects of paired pulse stimulation of the CT nerve in one cell. A. Paired-pulse enhancement at an interpulse interval of 30 ms. More spikes occurred in response to the test pulse compared with the conditioning pulse. B. Paired-pulse attenuation at an interpulse interval of 50 ms. Fewer spikes occurred in response to the test pulse compared with the conditioning pulse. Each panel shows oscilloscope tracings of 100 sweeps superimposed.