Non-cerebellar Visual Afferents to the Vestibular Nuclei Involving the Prepositus Hypoglossal Complex: an Autoradiographic Study in the Rat

Overview

Journal Exp Brain Res

Specialty Neurology

Date 1982 Jan 1

PMID 7173366

Citations 10

Authors

L Cazin

M Magnin

J Lannou

Affiliations

Soon will be listed here.

Abstract

Radioactive amino-acids were injected into the nucleus reticularis tegmenti pontis (NRTP) and the pretectum (PT) in the rat. Beside the labeling of the several nuclei which are known to receive afferents of either the NRTP and/or the PT, monosynaptic projections from these two structures to the prepositus hypoglossal complex (PHN) were demonstrated. Pretectal visual inputs to the vestibular nuclei (VN) may thus be conveyed not only by the classical PT-inferior olive-cerebellar route, but also by two other non-cerebellar ones involving the strong efferent projections of the PHN onto the VN. These last two pathways are strong candidates to account for the residual visual sensitivity of VN neurons after cerebellectomy or inferior olive lesions.

Citing Articles

Effects of accessory optic system lesions on vestibulo-ocular and optokinetic reflexes in the cat.

Clement G, Magnin M Exp Brain Res. 1984; 55(1):49-59.

PMID: 6745354 DOI: 10.1007/BF00240497.

An electrophysiological study of pathways mediating optokinetic responses to the vestibular nucleus in the rat.

Cazin L, Lannou J, Precht W Exp Brain Res. 1984; 54(2):337-48.

PMID: 6723853 DOI: 10.1007/BF00236235.

Possible visual pathways to the cat vestibular nuclei involving the nucleus prepositus hypoglossi.

Magnin M, Courjon J, Flandrin J Exp Brain Res. 1983; 51(2):298-303.

PMID: 6194009 DOI: 10.1007/BF00237206.

Projections from the nuclei prepositus hypoglossi and intercalatus to the superior colliculus in the cat: an anatomical study using WGA-HRP.

Stechison M, Saint-Cyr J, Spence S Exp Brain Res. 1985; 59(1):139-50.

PMID: 4018193 DOI: 10.1007/BF00237674.

The nucleus reticularis tegmenti pontis and the adjacent rostral paramedian reticular formation: differential projections to the cerebellum and the caudal brain stem.

Gerrits N, Voogd J Exp Brain Res. 1986; 62(1):29-45.

PMID: 3956636 DOI: 10.1007/BF00237401.

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