Click-evoked vestibular activation in the Tullio phenomenon.
Click-evoked vestibulocollic reflexes were studied in a patient with a unilateral Tullio phenomenon (sound induced vestibular symptoms) and the findings were compared with those of a group of normal subjects. Compared with normal subjects, the reflexes elicited from her symptomatic side were large and had an abnormally low threshold, but retained a normal waveform. The click-evoked responses in this patient show changes consistent with her symptomatology and are indicative of a pathological increase in the normal vestibular sensitivity to sound.
Colebatch
J G
JG
Department of Neurology, Prince of Wales Hospital, Randwick NSW, Australia.
Rothwell
J C
JC
Bronstein
A
A
Ludman
H
H
D000328:Adult; D000368:Aged; D001309:Auditory Threshold; D016022:Case-Control Studies; D004576:Electromyography; D005260:Female; D006801:Humans; D007762:Labyrinthitis / Q000209:etiology* / Q000503:physiopathology*; D008875:Middle Aged; D011930:Reaction Time; D012027:Reflex, Vestibulo-Ocular; D013016:Sound / Q000009:adverse effects*; D014717:Vertigo / Q000209:etiology* / Q000503:physiopathology*; D014724:Vestibular Function Tests