TABLE II.

Noise-Induced Shifts in VsEP Latency

Latency (ms)
	Baseline	Day 1	Day 7	Day 21	Day 28
0.3 g/ms	1.47	(no P1)	(no P1)	(no P1)	(no P1)
1.1 g/ms	1.33	1.73	1.59	1.54	1.56
2.2 g/ms	1.29	1.40	1.40	1.42	1.44
3.4 g/ms	1.28	1.38	1.34	1.38	1.35
5.5 g/ms	1.25	1.30	1.34	1.27	1.27

Latencies were identified from averaged VsEP traces and compared across days. At baseline, latencies were inversely correlated with stimulus intensity. Where a waveform was identifiable at the first positive peak of the VsEP waveform (P1; 0.5 g/ms excluded), there was an increase in latency, which persisted at all intensities except for 6.0 g/ms, for up to 28 days after noise exposure.