Figure 3 of
Koizumi, Mol Vis 2004;
10:328-340.Figure 3 of
Koizumi, Mol Vis 2004;
10:328-340.
Figure 3. IIR in other amacrine cells
IIR is observed albeit with a variety of depolarization properties. A: Current-clamp experiment. Example of an amacrine cell with oscillatory potentials. Injected currents were from -40 pA to 180 pA, in 20 pA steps, for 200 msec. Resting membrane potential was -74 mV. +80 pA current injection evoked a slow depolarization with oscillatory potentials (arrow). B: Voltage-clamp experiment. Voltages were clamped from -111 mV to -1 mV, in 10 mV steps, for 200 msec. Voltage-clamp at -51 mV evoked low-amplitude, high-frequency transient inward currents. C: Example of a non-spiking amacrine cell. Current-clamp experiment. Injected currents were from -40 pA to 180 pA, in 20 pA steps, for 200 msec. Resting membrane potential was -69 mV. No obvious action potential was seen, but slow potentials were evoked. D: Voltage-clamp experiment. Voltages were clamped from -111 mV to -1 mV, in 10 mV steps, for 200 msec.
