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EXPERIMENT INFORMATION

Studies of Vestibular Neurons in Normal, Hyper- and Hypogravity (8809A16)
Principal Investigator
Research Area:
Neurophysiology
Species Studied
Scientific Name: Macaca mulatta Species: Monkey Strain: Rhesus

Description
Objectives:

Two types of neurons were studied in this experiment: horizontal (lateral) semicircular canal afferents and type I or type II vestibular nuclei neurons found in the medial vestibular nucleus. The purpose of this study was to gain an understanding of neural adaptation of the semicircular canals to microgravity and to compare results to the previous study performed on Cosmos 2044.


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Publications
Correia, MJ, Lang, DG: An electrophysiological comparison of solitary type I and type II vestibular hair cells. Neuroscience Letters, vol. 116(1-2), August 14, 1990, pp. 106-111.

Correia, MJ, Ricci, AJ, Rennie, KJ: Filtering properties of vestibular hair cells: an update. Annals of NY Academy of Science, vol. 781, June 19, 1996, pp. 138-149.

Correia, MJ: Filtering properties of hair cells. Annals of NY Academy of Science, vol. 656, May 22, 1992, pp. 46-57.

Correia, MJ: Studies of vestibular neurons in normal, hyper- and hypogravity. Final Reports of the U.S. Experiments Flown on the Soviet Biosatellite Cosmos 2229 , Apr 1997.

Keywords
Action potentials
Adaptation, physiological
Eye movements
Head movements
Neurons, afferent
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Data Information
Data Availability
Archive is complete. No data sets are available for this experiment. Please Contact LSDA if you know of available data for this investigation.

Parameters
Response, Neuron, lateral afferent, pulse, primate, Implanted electrode, recording
Response, Neuron, lateral afferent, sine, primate, Implanted electrode, recording
Response, Neuron, lateral afferent, spontaneous firing rate, primate, Implanted electrode, recording
Response, Neuron, lateral afferent, sum of sines, primate, Implanted electrode, recording
Response, Neuron, type I, vestibular nuclei, pulse, primate, Implanted electrode, recording
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Cosmos 2229 12/29/1992 01/10/1993 12 days

Additional Information
Managing NASA Center
Ames Research Center (ARC)
Responsible NASA Representative
Ames Research Center LSDA Level 3
Project Manager: Helen Stewart
Institutional Support
National Aeronautics and Space Administration (NASA)
Alternate Experiment Name
K-8-03
Protocol / Approach
Vivarium control
Proposal Date
6/17/1988
Proposal Source
88-OSSA-9