Fig. 9.

OFF-response neurons. A, Responses of a long-duration-selective neuron to noise bursts of constant sound intensity, but varied duration. B, Responses of a duration-tuned neuron to noise bursts of varied intensity and varied duration. Duration of noise bursts is shown by the length of theblack bars under the PSTHs. Thicker barsindicate higher-intensity stimuli. Number of spikes per bin (bin width, 5 msec) shown on the right applies to all PSTHs. PSTHs of both neurons were summed over 30 trials.