ISSN:
1432-1106
Keywords:
Vestibulo-ocular pathway
;
MLF fibers
;
Labyrinth stimulation
;
Rapid transmission
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary Electrical stimulation of the vestibular nerve originating from the ampulla of the horizontal semi-circular canal evoked a “short latency invasion” in certain fibers of the medial longitudinal fasciculus (MLF) in “encéphale isolé” cats. 1. This rapid excitation occurs at a latency of 0.60 msec after the onset of the labyrinth stimulation in 17% of the MLF fibers, recorded intra-axonally. 2. The brevity and the stability of the latency coupled with the ability of the potentials to follow high frequency stimulation suggest a high degree of security in the transmission. 3. Three possible hypotheses are proposed to explain the rapid invasion of the MLF fibers: a monosynaptic connection between labyrinth receptors and ocular motoneurones, or an antidromic excitation of efferent fibers, or an electrotonic coupling phenomenon in the vestibulo-ocular circuit.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00234953
