Fig. 13.

Effect of irradiance, pulse width, and expression level on the spiking fidelity in vf-Chrimson-expressing interneurons. At $\lambda =565\mathrm{nm}$ and (a) irradiances when $g_0=0.25\mathrm{mS}/{\mathrm{cm}}^2$ and (b) expression level at $I=10\mathrm{mW}/{\mathrm{mm}}^2$.