Examples of GABAergic currents evoked by photolysis of low concentrations of G5-DEAC450- and CDNI-GABA. a) CDNI at 720 nm (400 μM, 3 × 1ms, 75 mW, n = 7; b) CDNI at 410 nm (56 μM, 5 ms, 2 mW, n = 5); c) G5-DEAC450 at 900 nm (45 μM, 3 × 3ms, 100 mW, n = 4); d) G5-DEAC450 at 900 nm (66 μM, 3 × 1ms, 50 mW, n = 8). No 2P-evoked currents could be detected with sub-100 μM CDNI-GABA.