Figure 3

Post-tetanic stimulation at high intensity induced γ oscillations followed by a slow SD. (A): Post-tetanic stimulation at 2.25 mA elicited a rudimentary γ oscillation. (B): Post-tetanic stimulation at 3.25 mA induced a typical γ oscillation with large amplitude and long duration. (C): Post-tetanic stimulation at 4.25 mA induced a γ oscillation followed by a slow SD. Traces A-C are recorded from the same slice, which is a typical representative of five experiments.