Fig. 2.

TTX blocks TLI in ganglion cells. Responses are from the same cell as in Figure 1. Except for the use of TTX rather than strychnine, all conditions are the same as in Figure 1. The responses in the middle row of traces were obtained after 2 min in 500 nm TTX, and those in the bottom row of traces were obtained 10 min after return to control Ringer’s solution. Resting potential was −51 mV in both control Ringer’s solution and TTX.