RT Journal Article SR Electronic T1 Head taps evoke a crossed vestibulo-ocular reflex JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 1227 OP 1229 DO 10.1212/01.wnl.0000259064.80564.21 VO 68 IS 15 A1 Iwasaki, S. A1 McGarvie, L. A. A1 Halmagyi, G. M. A1 Burgess, A. M. A1 Kim, J. A1 Colebatch, J. G. A1 Curthoys, I. S. YR 2007 UL http://n.neurology.org/content/68/15/1227.abstract AB Taps to the forehead on the midline, at the hairline (Fz), with a reflex hammer or powerful bone conduction vibrator caused short-latency surface potentials from beneath both eyes in all healthy subjects. The earliest negative responses were invariably absent from the eye contralateral to the side of a previous vestibular nerve section but were preserved despite sensorineural hearing loss. These responses probably reflect vestibular function via crossed otolith–ocular pathways.