by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English
|Other titles||Otolith canal convergence in vestibular nuclei neurons|
|Statement||principal investigator, J. David Dickman.|
|Series||[NASA contractor report] -- 206685, NASA contractor report -- NASA CR-206685.|
|Contributions||United States. National Aeronautics and Space Administration.|
|The Physical Object|
Otolith-Canal Convergence In Vestibular Nuclei Neurons. By Xiao-Hong Si and J. David Dickman. Abstract. The current final report covers the period from June 1, to The primary objective of the investigation was to determine how information regarding head movements and head position relative to gravity is received and Author: Xiao-Hong Si and J. David Dickman. Information processing regarding head movement and head position with respect to gravity takes place in the vestibular nuclei neurons that receive signals From the semicircular canals and otolith organs in the vestibular labyrinth. These neurons must synthesize the information into a coded output signal that provides for the head and eye movement reflexes as well as the conscious perception of the body in Author: J. David Dickman. Otolith and Canal Input in Vestibular Nuclei. Specificity of otolith and canal input was investigated in second-order vestibular neurons (2°VN). Especially the convergence of monosynaptic input from the three semicircular canals, the utricle, the lagena and the saccule was : Fumiyuki Goto. Straka, H., S. Holler, and F. Goto. Patterns of canal and otolith afferent input convergence in frog second-order vestibular neurons.J Neurophysiol –, ; /jn Second-order vestibular neurons (2°VN) were identiﬁed in the isolated frog brain by the presence of monosynaptic excitatory postsynaptic poten-tials Cited by:
Convergent neurons were located in the caudoventral part of the lateral, the rostral part of the descending, and the medial vestibular nuclei. Otolith-activated vestibular neurons in the superior vestibular nucleus were extremely rare. A high percentage of neurons received excitatory inputs from two nerve pairs, Cited by: movements (canal-only neurons) and were unresponsive to translation. The canal-only central neurons encoded head rotation in SCC coordi-nates, exhibited little orthogonal canal convergence, and were character-ized with signiﬁcantly higher sensitivities to rotation as compared to primary SCC afferents. Another fourth of the neurons modulated theirCited by: Locations of recorded vestibular neurons activated by stimulation of the HC and SAC nerves. A Locations of the HC/SAC convergent neurons in the transverse sections of vestibular nuclei. Triangles indicate VS neuron, circles indicate VOS, empty diamonds indicate VO, squares indicate V neuron. We studied the convergence of two afferent pairs of single vestibular neurons by selective stimulation of the horizontal semicircular canal (HC) and saccular (SAC) nerves, and the HC and utricular (UT) nerves in decerebrate cats. All recorded neurons were classified as vestibulospinal (VS), vestibulo-oculospinal (VOS) or vestibulo-ocular (VO), by antidromic stimulation from the Cited by:
Response dynamics of otolith afferents and central oto#th neurons. In primates, vestibular nuclei neurons can be characterized by their sensitivity to head motion, eye movement, and body movement. One class of central vestibular neurons, termed vestibular only (VO. A. cochlear nuclei, and they are involved in localizing the source of a sound. B. cochlear nuclei, and they determine the pitch of a sound. C. inferior colliculi, and they are used to relay the information directly to the primary auditory cortex. D. inferior colliculi, and they filter out irrelevant auditory information. _Field,cAs C,4"7?7 OTOLITH-CANAL CONVERGENCE IN VESTIBULAR NUCLEI NEURONS NASA -Ames Grant No. NAG l -" Principal Investigator J. David Dickman, Ph.D. Associate Professor Departments of Surgery (Otolaryngology) and Anatomy The University of Miss|ssippi Medical Center North Stare Street Jackson, Mississippi () vestibular nuceli. STUDY. PLAY. subdivisions of the vestibular nuclei. medial lateral superior descending. the vestibular nuclei can be considered to be a _____ transfer station. if the vestibular nuclei is like a transfer station, list which systems it has direct connections with.