Orthodromic Transmission of VIIIth Nerve Volleys through the Vestibular Nuclei during Sleep1

2015 ◽  
pp. 2-27 ◽  
Author(s):  
G. L. Lenzi ◽  
O. Pompeiano
Keyword(s):  
Vestibular Nuclei ◽  
Viiith Nerve

Input of Anterior and Posterior Semicircular Canal Interneurons Encoding Head-Velocity to the Dorsal Y Group of the Vestibular Nuclei

2000 ◽  
Vol 83 (5) ◽  
pp. 2891-2904 ◽  
Author(s):  
Pablo Blazquez ◽  
Agis Partsalis ◽  
Nicolaas M. Gerrits ◽  
Stephen M. Highstein
Keyword(s):  
Electric Pulse ◽  
Semicircular Canals ◽  
Mossy Fibers ◽  
Vestibular Nuclei ◽  
Vestibuloocular Reflex ◽  
Interspike Intervals ◽  
Posterior Semicircular Canal ◽  
Viiith Nerve ◽  
Ventral Paraflocculus ◽  
Pulse Stimulation

Neurons in the Y group of the vestibular nuclei are activated disynaptically from the ipsilateral VIIIth nerve and polysynaptically from the contralateral nerve. The ipsilateral anterior and posterior semicircular canals project to the Y group via interneurons in the vestibular nuclei. Candidate interneurons located in the rostrolateral corner of the superior (SVN) and in the caudal medial (MVN) vestibular nuclei were retrogradely labeled by the iontophoretic injection of biocytin into the Y group. The physiology of these interneurons named Y-group projecting neurons (YPNs) was studied in the SVN. SVN-YPNs were activated antidromically by electric pulse stimulation in the Y group. The properties of SVN-YPNs are distinct from those of SVN flocculus projecting neurons (FPNs). Namely, YPNs have a lower resting rate than FPNs, have more irregular interspike intervals, show a different phase and gain during the vestibuloocular reflex, and are located differentially within the SVN. After the injection of biocytin into the Y group, the locations of Purkinje cells that project to the Y group were confined to the vertical zones of the flocculus and ventral paraflocculus. However, mossy fibers originating in the Y group terminate in both the vertical and horizontal zones of the flocculus and ventral paraflocculus as well as in the ipsilateral nodulus.

Hearing in Mice by GSR Audiometry: II. Magnitude of Unconditioned GSR as a Function of Intensity and Frequency Interactions

1968 ◽  
Vol 11 (1) ◽  
pp. 169-178 ◽  
Author(s):  
Alan Gill ◽  
Charles I. Berlin
Keyword(s):  
Power Law ◽  
Response Magnitude ◽  
Single Units ◽  
Spectral Content ◽  
Hearing Sensitivity ◽  
Subjective Magnitude ◽  
Orderly Fashion ◽  
Viiith Nerve

The unconditioned GSR’s elicited by tones of 60, 70, 80, and 90 dB SPL were largest in the mouse in the ranges around 10,000 Hz. The growth of response magnitude with intensity followed a power law (10 .17 to 10 .22 , depending upon frequency) and suggested that the unconditioned GSR magnitude assessed overall subjective magnitude of tones to the mouse in an orderly fashion. It is suggested that hearing sensitivity as assessed by these means may be closely related to the spectral content of the mouse’s vocalization as well as to the number of critically sensitive single units in the mouse’s VIIIth nerve.

EFFECT OF MELATONIN COMBINATIONS WITH 3-HYDROXIPYRIDINE DERIVATIVES ON NEURONS OF THE MEDIAL VESTIBULAR NUCLEI IN ANIMALS

2020 ◽  
pp. 79-83
Author(s):  
Vik.V. Yasnetsov ◽  
◽  
Yu.V. Ivanov ◽  
S.K. Karsanova ◽  
V.V. Yasnetsov ◽  
...  
Keyword(s):  
Vestibular Nuclei

scholarly journals Effects of caloric vestibular stimulation on serotoninergic system in the media vestibular nuclei of guinea pigs

2007 ◽  
Vol 120 (2) ◽  
pp. 120-124 ◽  
Author(s):  
Fu-rong MA ◽  
Jun-xiu LIU ◽  
Xue-pei LI ◽  
Jian-jun MAO ◽  
Qun-dan ZHANG ◽  
...  
Keyword(s):  
Guinea Pigs ◽  
Vestibular Nuclei ◽  
Vestibular Stimulation ◽  
Serotoninergic System ◽  
Caloric Vestibular Stimulation ◽  
The Media

The interconnection between the vestibular nuclei and the nodulus: a study of reciprocity

1988 ◽  
Vol 449 (1-2) ◽  
pp. 47-53 ◽  
Author(s):  
Fred Walberg ◽  
Espen Dietrichs
Keyword(s):  
Vestibular Nuclei

A new long spinal projection from the vestibular nuclei in the cat

1977 ◽  
Vol 122 (2) ◽  
pp. 351-356 ◽  
Author(s):  
Barry W. Petterson ◽  
Joe D. Coulter
Keyword(s):  
Vestibular Nuclei ◽  
Spinal Projection
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