Forty-nine neurons were recorded in the nucleus reticularis tegmenti pontis (NRTP) during horizontal vestibular and/or optokinetic stimulation in immobilized pigmented rats. During optokinetic stimulation, the response of NRTP neurons was either unidirectional (51%) or bidirectional (49%). Histologi
A projection from nucleus reticularis tegmenti pontis of Bechterew to the medial vestibular nucleus in rabbits
β Scribed by C. D. Balaban
- Publisher
- Springer-Verlag
- Year
- 1983
- Tongue
- English
- Weight
- 994 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0014-4819
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β¦ Synopsis
This study documents a bilateral projection from nucleus reticularis tegmenti pontis (NRTP) to the rostral aspect of the medial vestibular nucleus (MVN) in rabbits. Horseradish peroxidase injections in rostral MVN produced retrogradely labeled neurons in the caudal half of NRTP; caudal MVN injections produced negative results. This supports the hypothesis that NRTP relays visual input to the vestibular nuclei via an extracerebellar pathway (Precht and Strata 1980), and indicates the importance of examining the contributions of both direct and cerebellar-mediated visual pathways to oculomotor physiology.
π SIMILAR VOLUMES
In immobilized pigmented rabbits anesthetized with N2O (70%) and halothane (2-4%), extracellular spikes were recorded from neurons in the nucleus reticularis tegmenti pontks (NRTP) and their responses to optokinetic stimulation (OKS) were examined. OKS was delivered using constant-velocity (0.1-4.0
Phaseolus vulgaris leucoagglutinin and wheat germ agglutinin-horseradish peroxidase were iontophoretically injected into different parts of the vestibular nuclear complex (VNC) of the rat. Injections centered into the caudal part of the medial vestibular nucleus revealed a vestibulospinal projection