The Company of Biologists

Table 3.

Mean sound pulse number expressing the greatest amplitude in an evoked train of sounds

Stimulus rate (Hz)	Mean sound pulse number	N
180	5.50	2
160	5.40	5
150	4.60	5
140	4.50	10
130	3.83	6
120	3.18	11
110	2.71	7
100	2.55	11
75	1.80	5
50	2.00	5

Stimulus rate (Hz)	Mean sound pulse number	N
180	5.50	2
160	5.40	5
150	4.60	5
140	4.50	10
130	3.83	6
120	3.18	11
110	2.71	7
100	2.55	11
75	1.80	5
50	2.00	5

Sounds were evoked by unilateral stimulation of the sonic nerve with a 90 ms stimulus train.