at frequencies higher than 2 hz , the mean ratio of eye amplitude to head amplitude reached high large values ( 1.2 at 2 hz to 1.8 at 5 hz , on average ) , whereas it dropped to extremely low values ( 0.5-0.6 at 3-5 hz ) in the 2 referred patients with bilateral labyrinthine loss .
C0015392
eye
C0018670
head