Distribution, in percent, of response types, and comparison with other studies. Classification for data of present study (top rows) was based on the response map (rate-level function at CF), or on the rate-curve to long tones, when available. The Pentobarbital data are from a single animal. Total n (left column) refers to number of cells used in the calculation of percentages; numbers in parentheses give average SR (in spikes per sec). Some of the values of published reports, provided for comparison, are recalculated percentages because response type distribution was often not a primary aim in these studies and is not always stated as such.

↵F1-a One animal out of 28 was studied under chloralose anesthesia.

↵F1-1002 Recalculated percentages for types II, III, and IV. Distinction between types II and III was made not only on the basis of SR, but also on the basis of response to noise. Out of a total of 108 cells, 30 did not fit into either of these categories: most (24 of 108) of these were classified as type I/III because of a lack of SR. Percentages calculated according to the criteria used in the older studies would presumably be 42 for type II, 24 for type III, and 35 for type IV.

↵F1-c Percentages are monotonic (type II/III) and nonmonotonic (type IV) responses as quoted in Table 1 of Rhode and Kettner (1987). Responses to broadband noise were not reported in these studies.