Table 3.

Means and SD of ABR absolute (baseline to peak) amplitudes (in μV) and the number of subjects showing each identifiable peak. Part A: monaural and binaural stimulation waveforms for ITD = 0 μs across both sessions. Part B: binaural waveforms for each of the non-zero ITDs.

A.
	Right Monaural					Left Monaural					Binaural
Wave	I	II	III	IV	V	I	II	III	IV	V	I	II	III	IV	V
ITD = 0 μs (+/− 500 μs session)
Mean	.013	.072	.146	.191	.159	.009	.067	.142	.192	.149	.041	.135	.276	.359	.210
(SD)	(.04)	(.04)	(.06)	(.05)	(.07)	(.04)	(.05)	(.05)	(.07)	(.08)	(.06)	(.12)	(.12)	(.13)	(.14)
# Subjects	37	37	39	40	40	38	39	40	40	40	36	37	40	38	40
ITD = 0 μs (+/− 750 μs session)
Mean	.013	.069	.159	.192	.136	.008	.065	.146	.189	.160	.040	.107	.282	.357	.222
(SD)	(.04)	(.05)	(.05)	(.05)	(.07)	(.04)	(.06)	(.06)	(.05)	(.06)	(.08)	(.10)	(.09)	(.09)	(.14)
# Subjects	39	39	40	39	40	37	36	40	38	40	39	39	40	40	40
B.
	Binaural ITD = −750 μs					Binaural ITD = −500 μs					Binaural ITD = +500 μs					Binaural ITD = +750 μs
Wave	I	II	III	IV	V	I	II	III	IV	V	I	II	III	IV	V	I	II	III	IV	V
Mean	.012	.013	.184	.233	.297	.054	.067	.195	.286	.276	.051	.021	.204	.280	.300	.026	.009	.184	.240	.352
(SD)	(.06)	(.05)	(.09)	(.08)	(.11)	(.07)	(.10)	(.07)	(.09)	(.12)	(.12)	(.08)	(.10)	(.08)	(.12)	(.06)	(.06)	(.10)	(.06)	(.09)
# Subjects	17	22	40	35	40	31	19	40	26	40	29	15	39	23	40	23	25	40	32	40