Figure 9.

Recordings from units at various depths from two experiments where an electrode was inserted into AI(LF) in tracks oriented orthogonally to the surface. The mean CF of units in each track is shown at the top as well as the waveform of the chutter. The elements responded to by each unit within one track are remarkably similar. The units in track (A) all respond to the same five elements although the response to element (e) is very small in a few of the deepest units. Their similarity is indicated by the value on the right hand side of each panel which shows the correlation between the PSTH and the mean PSTH for that track. The units in track (B) primarily give an onset response to element (a) although the response gets smaller with increasing depth until by the deepest unit there is no longer any significant response to this element. The upper units also show a response to element (e) and two of the units also give a small response to (h). Thus, although not identical the responses are similar as shown by the correlation values at the right of each panel.