FIG. 6.
Bi-directional (nonselective) unit in the Sg. Plots are organized identically to those in Fig. 4. A: PSTHs from 16 rate/intensity combinations with responses to down sweeps (left) and to up sweeps (right). B: the unit showed robust responses to both down and up sweeps at all intensities and rates tested. C: summary of FM preferences. Unit was bi-directional at all combinations of modulation rate and SPL tested.