NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Motor function in microgravity: movement in weightlessnessMicrogravity provides unique, though experimentally challenging, opportunities to study motor control. A traditional research focus has been the effects of linear acceleration on vestibular responses to angular acceleration. Evidence is accumulating that the high-frequency vestibulo-ocular reflex (VOR) is not affected by transitions from a 1 g linear force field to microgravity (<1 g); however, it appears that the three-dimensional organization of the VOR is dependent on gravitoinertial force levels. Some of the observed effects of microgravity on head and arm movement control appear to depend on the previously undetected inputs of cervical and brachial proprioception, which change almost immediately in response to alterations in background force levels. Recent studies of post-flight disturbances of posture and locomotion are revealing sensorimotor mechanisms that adjust over periods ranging from hours to weeks.
Document ID
20040173089
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lackner, J. R.
(Brandeis University Waltham, Massachusetts 02254, United States)
DiZio, P.
Date Acquired
August 22, 2013
Publication Date
December 1, 1996
Publication Information
Publication: Current opinion in neurobiology
Volume: 6
Issue: 6
ISSN: 0959-4388
Subject Category
Aerospace Medicine
Distribution Limits
Public
Copyright
Other
Keywords
NASA Program Flight
Flight Experiment
Review
NASA Program Space Physiology and Countermeasures
NASA Discipline Neuroscience
NASA Discipline Number 00-00
short duration
NASA Discipline Number 16-10
STS Shuttle Project
Parabolic Flight
Non-NASA Center
manned
Review, Tutorial

Available Downloads

There are no available downloads for this record.
No Preview Available