Advertisement

Vestibulospinal Control of Posture

  • Fay B. Horak
  • John Buchanan
  • Robert Creath
  • John Jeka
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 508)

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.

Keywords

Light Touch Experimental Brain Research Surface Translation Quiet Stance Slow Drift 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Allum, J. H. J., Honegger, F., and Schicks, H., 1994, The influence of a bilateral peripheral vestibular deficit on postural synergiesJournal of Vestibular Research4, 49–70.PubMedGoogle Scholar
  2. Pozzo, T., Berthoz, A., and Lefort, L., 1991, Head stabilization during various locomotor tasks in humans II. Patients with bilateral peripheral vestibular deficitsExperimental Brain Research85, 208–217CrossRefGoogle Scholar
  3. Buchanan J.J. and Horak F.B., 1998, Role of vestibular and visual systems in controlling head and trunk position in spaceSociety for Neuroscience24, 153.Google Scholar
  4. Buchanan, J. J., and Horak, F. B., 1999, Emergence of postural patterns as a function of vision and translation frequencyJournal of Neurophysiology81, 2325–2339.PubMedGoogle Scholar
  5. Horak, F. B., Shupert, C. L., Dietz, V., and Horstmann, G., 1994, Vestibular and somatosensory contributions to responses to head and body displacementsExperimental Brain Research100, 93–106.CrossRefGoogle Scholar
  6. Horak, F. B., and Shupert, C. L., 1994, Role of the vestibular system in postural control, in:Vestibular RehabilitationHerdman, S. J., Whitney, S. L., and Borello-France, D. F. eds., Publisher, F. A. Davis, Philadelphia.Google Scholar
  7. Horak, F. B., Nashner, L. M., and Diener, H. C. 1990, Postural strategies associated with somatosensory and vestibular lossExperimental Brain Research82, 167–177.CrossRefGoogle Scholar
  8. Jeka, J. J., and Lackner J. R., 1994, Fingertip contact influences human postural controlExperimental Brain Research100, 485–502.CrossRefGoogle Scholar
  9. Kane, T. R., and Levinson, D. A., 1985Dynamics: Theory and ApplicationsMcGraw Hill, New York.Google Scholar
  10. Lackner, J.R., DiZio, P., Jeka, J. J., Horak, F.B., Krebs, D., and Rabin, E., 1999, Precision contact of the fingertip reduces postural sway of individuals with bilateral vestibular lossExperimental Brain Research126, 459–466.CrossRefGoogle Scholar
  11. Nashner, L. M., Black, F. O., and Wall, III, C., 1982, Adaptation to altered support and visual conditions during stance: Patients with vestibular deficitsJournal of Neuroscience2, 536–544.PubMedGoogle Scholar
  12. Runge, C. F., Shupert, C. L., Horak, F. B., and Zajac, F. E., 1998, Role of vestibular information in initiation of rapid postural responsesExperimental Brain Research122, 403–412.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  • Fay B. Horak
    • 1
  • John Buchanan
    • 2
  • Robert Creath
    • 3
  • John Jeka
    • 3
  1. 1.Neurological Sciences Institute of Oregon Health Sciences UniversityBeavertonUSA
  2. 2.Texas A&M UniversityCollege StationUSA
  3. 3.Dept. of KinesiologyUniveristy of MarylandCollege ParkUSA

Personalised recommendations