Figure 2: oVEMP recordings from noise exposed dental technicians. Left panel shows oVEMP responses recorded from the right ears of Patient 1 (top) and Patient 4 (bottom) and right panel shows oVEMP responses recorded from the left ears of Patient 1 (top) and Patient 4 (bottom). The stimulus was 500 Hz presented at the level of 100 dB nHL. For Patient 1, the initial peaks of oVEMP (P1) occurring at about 10 msec followed by negative peaks (N1) occurring at about 15 msec, which suggests normal latencies values of oVEMP. However, P1 and N1 are not appeared in collected traces from Patient 4, indicating a deviant utricle and superior nerve response. Recordings from Patient 2, 3, and 5 were normal but not included.