THE EFFECT OF LOUD HUMAN'S VOICE ON SACCULAR FUNCTION

Objectives: It is demonstrated the presence of saccular dysfunction both in the latency and in the intensity dependence of cervical vestibular evoked myogenic potentials (cVEMPs) when exposure to percussive daf music (an Iranianinstrument, which produces low pitch tone). In this cross-sectional study we extend this work by comparing cVEMPs in the persons, who frequently read the noble Qur'an with Majlessy style (MS) in comparison to Tarteel style (TS).

Methods: The readers (20 men with MS and 20 men with TS) were underwent audiologic tests and cVEMPs at our audiology department.

Results: All readers had normal hearing thresholds. Statistical analysis using independent t-test showed that the mean latencies and mean peak-to-peak amplitudes of the cVEMPs in two groups had significant differences.

Conclusion: Loud human's voice may potentially increase saccular damage.