Figure 5: [Na⁺]_o dependence of the time courses and amplitudes of the three charge components.

Colour and symbol coding, as well as bases for solid line fits, are as in Figure 4. (a) Data from a single axon at 50 mM [Na⁺]_o: fitted τ_s=6.0±0.2 ms, τ_m=1.5±0.3 ms. (b) A different axon at 400 mM [Na⁺]_o: fitted τ_s=1.1±0.1 ms, τ_m=0.65±0.10 ms.