Chapter title |
Vestibulospinal control of posture.
|
---|---|
Chapter number | 17 |
Book title |
Sensorimotor Control of Movement and Posture
|
Published in |
Advances in experimental medicine and biology, January 2002
|
DOI | 10.1007/978-1-4615-0713-0_17 |
Pubmed ID | |
Book ISBNs |
978-1-4613-5206-8, 978-1-4615-0713-0
|
Authors |
Horak, Fay B, Buchanan, John, Creath, Robert, Jeka, John, Fay B. Horak, John Buchanan, Robert Creath, John Jeka, Horak, Fay B. |
Abstract |
To better understand the role of the vestibular system in postural coordination, we compared the ability of subjects with complete, bilateral loss of vestibular function and age-matched control subjects to maintain equilibrium and postural orientation during sinusoidal displacements of the support surface at a variety of frequencies. We also examined the ability of visual or somatosensory-light touch information to substitute for missing vestibular information in dynamic postural coordination. The results suggest that vestibular information is used as a gravitational reference frame to prevent slow drift of the trunk in space during complex postural tasks. Furthermore, visual information or somatosensory information from light touch of a finger on a stable reference can significantly substitute for loss of vestibular function. |
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Mendeley readers
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