Scatter plots of spontaneous firing of hyperactive CNIC neurons with electrical stimulation of the OCB (gray bar), showing examples of long suppression after stimulation (ranging from 500 to 2550 ms) with either some late oscillation visible or a slow return to baseline levels. A, Neuron CF 18.6 kHz, threshold 82 dB SPL. B, Neuron CF 10.9 kHz, threshold 56 dB SPL. Stimulation parameters: 100 ms duration, 0.1 ms pulses, 300 Hz. Stimulation strength in A and B was 250 μA.