Fig. 4.

Inhibitory synaptic currents evoked by glutamate application on an adjacent neuron. A brief pulse application of glutamate (top trace) evoked a series of IPSCs, responding to a series of action potentials generated in the afferent neuron. Recording was made with a patch pipette containing K-acetate. The cell was held at different potentials, and the inhibitory currents reversed near resting potential (−50 mV).