JOURNAL OF VESTIBULAR RESEARCH-EQUILIBRIUM & ORIENTATION, vol.30, no.3, pp.195-201, 2020 (SCI-Expanded)
BACKGROUND: Positional nystagmus elicited by the Dix-Hallpike maneuver often reverses its direction as the patient is re-seated from the provoking head hanging position. The incidence of reverse nystagmus and its association with prognosis in posterior canal benign paroxysmal positional vertigo (pcBPPV) is not clear.