Influences of the perception of self-motion on postural parameters

Cyberpsychology & Behavior : the Impact of the Internet, Multimedia and Virtual Reality on Behavior and Society
E A KeshnerR V Kenyon

Abstract

We examined how spatial and temporal characteristics of the perception of self-motion, generated by constant velocity visual motion, was reflected in orientation of the head and whole body of young adults standing in a CAVE, a virtual environment that presents wide field of view stereo images with context and texture. Center of pressure responses from a force plate and perception of self-motion through orientation of a hand-held wand were recorded. The influence of the perception of self-motion on postural kinematics differed depending upon the plane and complexity of visual motion. Postural behaviors generated through the perception of self-motion appeared to contain a confluence of the cortically integrated visual and vestibular signals and of other somatosensory inputs. This would suggest that spatial representation during motion in the environment is modified by both ascending and descending controls. We infer from these data that motion of the visual surround can be used as a therapeutic tool to influence posture and spatial orientation, particularly in more visually sensitive individuals following central nervous system (CNS) impairment.

References

Oct 19, 2002·Biological cybernetics·Gilles ReymondAndras Kemeny
Nov 22, 2002·Experimental Brain Research·A E I Thurrell, A M Bronstein
Apr 11, 2003·Journal of Neurophysiology·Emily A Keshner

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Citations

Feb 23, 2010·PLoS Computational Biology·Kalpana DokkaKonrad P Kording
Aug 2, 2008·Neuroscience Letters·Michel Guerraz, Adolfo M Bronstein

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