Suppression of vestibular nystagmus induced by fixation of visual and acoustic targets moving with the head during sinusoidal rotation (0.1 Hz, 75 degrees/second peak velocity) was tested in cerebellar and noncerebellar patients. Visual suppression was impaired greatly in cerebellar patients, without correlation with visual smooth-pursuit defects. Acoustic suppression was equal to or slightly weaker than visual suppression. In noncerebellar patients, a disturbance of visual suppression was found only in the presence of a severe impairment of pursuit eye movements. Acoustic suppression did not parallel the visual-suppression pattern. In clinical vestibular examination, an impaired modulation of the vestibulo-ocular reflex suggests a cerebellar dysfunction, but also can occur in the presence of disorders of other parts of the CNS severely affecting the SP system.
|Data di pubblicazione:||1981|
|Titolo:||Impaired suppression of vestibular nystagmus by fixation of visual and acoustic targets in neurological patients.|
|Rivista:||ANNALS OF THE NEW YORK ACADEMY OF SCIENCES|
|Digital Object Identifier (DOI):||10.1111/j.1749-6632.1981.tb30912.x|
|Codice identificativo Scopus:||2-s2.0-0019732375|
|Codice identificativo Pubmed:||6978655|
|Appare nelle tipologie:||Articolo su Rivista|