PLASTICITY IN VESTIBULAR AND SPINAL CIRCUITS AFTER HEMILABYRINTHECTOMY IN THE FROG

Citation
H. Straka et al., PLASTICITY IN VESTIBULAR AND SPINAL CIRCUITS AFTER HEMILABYRINTHECTOMY IN THE FROG, European journal of morphology, 32(2-4), 1994, pp. 303-306
Citations number
14
Categorie Soggetti
Anatomy & Morphology
ISSN journal
09243860
Volume
32
Issue
2-4
Year of publication
1994
Pages
303 - 306
Database
ISI
SICI code
0924-3860(1994)32:2-4<303:PIVASC>2.0.ZU;2-C
Abstract
Removal of the labyrinthine organs on one side results in static and d ynamic disturbances. Some functional recovery is seen in frogs over ti me. Electrophysiological studies of the isolated brainstem and/or spin al cord of hemilabyrinthectomized frogs demonstrate changes in vestibu lar and spinal circuits. Comparison of the time courses of these chang es with the known time course of postural recovery excludes changes in the vestibular nuclei as an explanation for the initial postural reco very process. Selective labyrinthine lesion suggest a causal link betw een utricular lesion, postural deficit, spinal plasticity and postural normalization.