Table 4.

Mean latency (SD) of ABR Waveform I (Wf I) and the interpeak interval between Waveform V - Waveform I [(Wf (V - I)]. In healthy children over a range of ages, the latencies of Wf 1 and interpeak interval Wf (V – I) are about 1.5 msec and 4 msec, respectively (Gillberg, Rosenhall, & Johansson 1983; Gorga, Kaminski, Beauchaine, Jesteadt, & Neely, 1989; Purdy, Kelly, & Davies, 2002.)

	Response to noise bursts		Post-burst response to trigger toy
	No startle	Startle	Leave toy	Hold/return to toy
N	18	8	6	18
Wf I (msec)	1.64 (0.23)	1.68 (0.28)	1.67 (0.23)	1.67 (0.26)
Wf (V – I, msec)	4.46 (0.36)	4.52 (0.23)	4.42 (0.36)	4.49 (0.34)