The hvHIT recordings of 40 dizzy patients with left sided horizontal canal VOR gains <0.8 were retrospectively re-evaluated for the presence of RS. The study groups included 20 patients with a final diagnosis of left horizontal semicircular canal vestibular dysfunction (VD) secondary to vestibular neuritis, vestibular schwannoma and unilateral intra-tympanic gentamicin-induced vestibulopathy and 20 patients for whom vestibular disease was ruled out (NVD). The diagnosis of left vestibular disease was based on the cumulative data of the patient’s history, bedside otoneurological examination findings, videonystagmography caloric test results, vHIT findings and imaging results. The NVD subjects had non-specific complaint of dizziness, history that was not typical for vestibular disease, normal bed-side otoneurological examination as well as videonystagmography and imaging studies results. Also, no persistent postural perceptual dizziness (PPPD) nor vestibular migraine cases were included in the NVD group. The contribution of the VOR gain values, RS latency, frequency, and velocity parameters towards the prediction of left vestibular dysfunction was assessed. The study protocol was approved, and an exempt was granted from informed consent procedure by the institutional committee for human experiments (identifying data removed to comply with the instruction to authors)