Wave V Latency and Chirp (Linear Frequency Ramp): Repetition Rate

Abstract

Chirps or linear frequency ramps served as stimuli for eliciting brainstem electric responses (BER). Chirps were presented in a range from 1.2 to 8.7 kHz, both falling and rising, with interstimulus intervals (ISIs) of 10, 20, 50 and 100 ms. All parameters influenced the BER. The latency of wave Vdecreased with increasing mean frequency of the chirps and ISIs. Wave latency is affected by the interaction of chirp frequency, direction of sweep and ISI in a complex fashion.

Key Words:

• Brainstem electric responses
• Linear frequency ramp
• Interstimulus intervals
• Latency of wave V