EFFECT OF CORTICAL LESIONS AND ELIMINATION OF RETINAL IMPULSES ON LABYRINTHINE NYSTAGMUS
- 1 January 1953
- journal article
- research article
- Published by American Medical Association (AMA) in JAMA Otolaryngology–Head & Neck Surgery
- Vol. 57 (1) , 1-11
- https://doi.org/10.1001/archotol.1953.00710030018001
Abstract
ABLATION of one cerebral hemisphere in rabbits facilitates nystagmus in the direction toward the side of the operation and diminishes nystagmus to the normal hemisphere. This reaction has been observed in postrotational nystagmus (Bauer and Leidler1), as well as on calorization of the labyrinth (Dusser de Barenne and de Kleyn2). It seemed of interest to ascertain whether circumscribed parts of the cerebral cortex are responsible for this phenomenon, particularly in view of the observation of Fitzgerald and Hallpike3 that tumors of the temporal lobe may be associated with such a "directional preponderance" of caloric nystagmus to the diseased hemisphere. Spiegel and Scala4 found a similar prevalence of the nystagmus to the side operated on following section of the optic tract or electrolytic lesion of the external geniculate ganglion. Thus, the further problem arose as to whether afferent retinal impulses may play a role in the mechanismKeywords
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