Figure 6.

Scatter plots of spontaneous firing of hyperactive CNIC neurons with electrical stimulation of the OCB (gray bar), recorded both before (dark circles) and after (open circles) strychnine perfusion in the cochlea. Illustrations of neurons where the immediate suppression was abolished (A–C), but sometimes later effects remained (B, C). A, Neuron CF 7.8 kHz, threshold 20 dB SPL. B, Neuron CF 9.2 kHz, threshold 21 dB SPL. C, Neuron CF 14.5 kHz, threshold 22 dB SPL. Stimulation parameters: 100 ms duration, 0.1 ms pulses, 300 Hz. Stimulation strength in A and B was 300 μA and in C 150 μA.