In high frequency hearing losses wave V is delayed at low intensities. Wave I tends to be delayed at all intensities and by a greater amount than wave V. The I-V interval is often reduced with the effect maximal at higher intensities.
Low frequency hearing losses tend to cause early wave V latencies at low intensities. Wave I latencies are normal. The I-V interval is therefore reduced at lower intensities.
Flat hearing losses produce normal latency-intensity functions.
High-frequency notched audiograms are almost always associated with delayed wave V but early wave I latencies. The I-V interval is therefore significantly prolonged with the effect maximal at low intensities.
The variability of the I-V interval as a function of audiometric configuration indicates that it is not a pure measure of central conduction time.