Neck muscle vibration alters visually-perceived roll after unilateral vestibular loss

Unilateral sternocleidomastoid muscle vibration was applied to 21 normal and six unilateral vestibular deafferented (uVD) human subjects at head erect and during 30 degrees left and right whole body roll-tilt. In normal subjects, neck vibration had no effect upon the settings of a visual bar to subjective visual horizontal (SVH) in any roll-tilt condition. In uVD subjects settings to SVH were significantly altered by neck vibration, with ipsilesional neck vibration increasing the SVH bias at head erect. Further, during contralesional roll-tilt, ipsilesional neck vibration in uVD subjects significantly increased the E-effect. These results suggest that compensation after vestibular loss allows cervical signals to influence visual perception of roll-tilt.

Barone, M (author)
Karlberg, MikaelLund University,Lunds universitet,Öron-, näs- och halssjukdomar, Lund,Sektion IV,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Otorhinolaryngology (Lund),Section IV,Department of Clinical Sciences, Lund,Faculty of Medicine(Swepub:lu)onh-mka (author)
MacDougall, H (author)
Curthoys, I S (author)
Öron-, näs- och halssjukdomar, LundSektion IV (creator_code:org_t)

By the author/editor: Betts, G A; Barone, M; Karlberg, Mikael; MacDougall, H; Curthoys, I S

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Basic Medicine; and Neurosciences

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