COMPARISON OF CROSSED AND UNCROSSED ACOUSTIC REFLEX LATENCIES

Objective: To compare morphologies of crossed and uncrossed acoustic r eflex waveforms. Design: Subjects were 12 young adults with normal hea ring. A signal-averaging technique was used to compare onset and offse t latencies of crossed and uncrossed acoustic reflex waveforms when ma ximum amplitudes were matched. Results: Onset latency was similar for the two modes, but offset latency was significantly longer for the cro ssed reflex. Further, in individual subjects the difference between cr ossed and uncrossed offset latencies was inversely proportional to max imum reflex amplitude. Conclusion: Results emphasize the complex inter action between amplitude and latency characteristics of the acoustic r eflex waveform.