The strong imbalance of the output of vestibular nuclei, resulting from a hemilabyrinthectomy, causes among other postural and ocular symptoms, a failure to hold a steady ocular position in the dark. In this study the time course of the spontaneous eye motility following a right hemilabyrinthectomy was analyzed. In all animals, at the first recordings, drifts of 0.8-1.0°/c were present. These drifts were directed to the lesion side, then they shifted their trajectomy more than once. At the final recordings, most animals exhibited very slow drifts (0.05-0.1°/s) directed to the intact side suggesting an overcompensation of the initial extreme rightward deviation.
SPONTANEOUS EYE MOTILITY FOLLOWING A UNILATERAL VESTIBULAR LESION / Petrosini, Laura; T., Gremoli. - In: BRAIN RESEARCH. - ISSN 0006-8993. - 418:2(1987), pp. 398-402. [10.1016/0006-8993(87)90111-9]
SPONTANEOUS EYE MOTILITY FOLLOWING A UNILATERAL VESTIBULAR LESION
PETROSINI, Laura;
1987
Abstract
The strong imbalance of the output of vestibular nuclei, resulting from a hemilabyrinthectomy, causes among other postural and ocular symptoms, a failure to hold a steady ocular position in the dark. In this study the time course of the spontaneous eye motility following a right hemilabyrinthectomy was analyzed. In all animals, at the first recordings, drifts of 0.8-1.0°/c were present. These drifts were directed to the lesion side, then they shifted their trajectomy more than once. At the final recordings, most animals exhibited very slow drifts (0.05-0.1°/s) directed to the intact side suggesting an overcompensation of the initial extreme rightward deviation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
