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Objective: To compare VEMP response characteristics between binaural and monaural stimulation and to determine normative data for logon stimulus in adults. Subjects and Methods: Twenty-two healthy adults were involved in the study. Two set types of VEMP recordings were performed for each subject. One is simultaneous binaural logon stimulation with bilateral recordings (B-VEMP) and the other one is monaural logon stimulation of each ear separately with two sequential ipsilateral recording (M-VEMP). Subjects were divided into two groups involving 11 participants in each group. In the first group all participants underwent initial B-VEMP test and subsequent M-VEMP test; while in the second group all participants underwent initial M-VEMP test and subsequent BVEMP test. Logon type stimulus with 120 dB HL intensity was used to trigger VEMPs in both methods. Results: There was no statistical difference between B-VEMP and M-VEMP recordings in respect to P1 and N1 latencies, P1- N1 interval and P1-N1 amplitude in any of the groups. When the VEMP responses of 2 groups were combined (42 ears), we have found that the mean P1 latency was 14.9 ± 1.5 msec, the mean N1 latency was 22.3 ± 2.3 msec, the mean P1-N1 interval was 7.6 ± 2.4 msec, and the mean P1-N1 amplitude was 14.1 ± 6.1 μV for B-VEMP recordings. These values were 15.1 ± 1.6 msec, 22.2 ± 1.6 msec, 7.0 ± 1.9 msec, and 14.8 ± 6.0 μV respectively for M-VEMP recordings. Conclusion: Binaural stimulation with simultaneous bilateral recording gives similar results with monaural stimulation with a separate recording for each site. B-VEMP recording can be a more convenient way of VEMP testing especially in those subjects who have difficulty to maintain a constant muscular effort during test procedure. [ABSTRACT FROM AUTHOR]