Experimental Brain Research

, Volume 160, Issue 4, pp 450–459

Nonlinear postural control in response to visual translation

  • Elena Ravaioli
  • Kelvin S. Oie
  • Tim Kiemel
  • Lorenzo Chiari
  • John J. Jeka
Research Article

Abstract

Recent models of human postural control have focused on the nonlinear properties inherent to fusing sensory information from multiple modalities. In general, these models are underconstrained, requiring additional experimental data to clarify the properties of such nonlinearities. Here we report an experiment suggesting that new or multiple mechanisms may be needed to capture the integration of vision into the postural control scheme. Subjects were presented with visual displays whose motion consisted of two components: a constant-amplitude, 0.2 Hz oscillation, and constant-velocity translation from left to right at velocities between 0 cm/s and 4 cm/s. Postural sway variability increased systematically with translation velocity, but remained below that observed in the eyes-closed condition, indicating that the postural control system is able to use visual information to stabilize sway even at translation velocities as high as 4 cm/s. Gain initially increased as translation velocity increased from 0 cm/s to 1 cm/s and then decreased. The changes in gain and variability provided a clear indication of nonlinearity in the postural response across conditions, which were interpreted in terms of sensory reweighting. The fact that gain did not decrease at low translation velocities suggests that the postural control system is able to decompose relative visual motion into environmental motion and self-motion. The eventual decrease in gain suggests that nonlinearities in sensory noise levels (state-dependent noise) may also contribute to the sensory reweighting involved in postural control. These results provide important constraints and suggest that multiple mechanisms may be required to model the nonlinearities involved in sensory fusion for upright stance control.

Keywords

Sensory reweighting Multisensory integration Vision Adaptation Postural control Human 

References

  1. Bardy B, Warren W, Kay BA (1999) The role of central and peripheral vision in postural control during walking. Percep Psychophys 61:1356–1368Google Scholar
  2. Black FO, Nashner LM (1984) Vestibulo-spinal control differs in patients with reduced versus distorted vestibular function. Acta Otolaryngol 406 [Suppl]:110–114Google Scholar
  3. Black FO, Shupert CL, Horak FB, Nashner LM (1988) Abnormal postural control associated with peripheral vestibular disorder. Prog Brain Res 76:263–275PubMedGoogle Scholar
  4. Bronstein AM (1986) Suppression of visually evoked postural responses. Exp Brain Res 63:655–658PubMedGoogle Scholar
  5. Dijkstra TMH, Schöner G, Gielen CCAM (1994a) Temporal stability of the action-perception cycle for postural control in a moving visual observed with human stationary stance. Exp Brain Res 97:477–486CrossRefPubMedGoogle Scholar
  6. Dijkstra TMH, Schoner G, Giese MA, Gielen CCAM (1994b) Frequency dependence of the action-perception cycle for postural control in a moving visual environment: relative phase dynamics. Biol. Cybern 71:489–501CrossRefGoogle Scholar
  7. Harris CM, Wolpert DM (1998) Signal-dependent noise determines motor planning. Nature 394:780–784CrossRefPubMedGoogle Scholar
  8. Hochberg Y, Tamhane AC (1987) Multiple comparison procedures. Wiley, New YorkGoogle Scholar
  9. Horak FB, Macpherson JM (1996) Postural orientation and equilibrium. In: Handbook of physiology. exercise. regulation and integration of multiple systems. American Physiological Society, Washington, DC, pp 255–292Google Scholar
  10. Jeka JJ, Oie KS, Kiemel T (2000) Multisensory information for human postural control: integrating touch and vision. Exp Brain Res 134:107–125CrossRefPubMedGoogle Scholar
  11. Jeka JJ, Ravaioli E, Oie KS, Chiari, L, Kiemel T(2003) Adaptive and perceptual mechanisms underlying sensory reweighting. Society for Neuroscience Abstract Viewer, 272.2Google Scholar
  12. Kiemel T, Oie KS, Jeka JJ (2002) Multisensory fusion and the stochastic structure of postural sway. Biol Cybern 87:262–277CrossRefPubMedGoogle Scholar
  13. Marple SL (1987) Digital spectral analysis with applications. Prentice-Hall, Englewood Cliffs, NJGoogle Scholar
  14. Mergner T, Maurer C, Peterka RJ (2003) A multisensory posture control model of human upright stance. Prog Brain Res 142:189–201CrossRefPubMedGoogle Scholar
  15. Nashner LM, Black FO, Wall C (1982) Adaptation to altered support and visual conditions during stance: patients with vestibular deficits. J Neurosci 2:536–544PubMedGoogle Scholar
  16. Oie KS, Kiemel T, Jeka JJ (2002) Multisensory fusion: simultaneous re-weighting of vision and touch for the control of human posture. Cog Brain Res 14:164–176CrossRefGoogle Scholar
  17. Peterka RJ (2002) Sensorimotor integration in human postural control. J Neurophysiol 88:1097–1118PubMedGoogle Scholar
  18. Peterka RJ, Benolken MS (1995) Role of somatosensory and vestibular cues in attenuating visually induced human postural sway. Exp Brain Res 105:101–110CrossRefPubMedGoogle Scholar
  19. Shumway-Cook A, Woollacott M (2000) Attentional demands and postural control: the effect of sensory context. J Gerontol A Biol Sci Med Sci 55:M10–M16PubMedGoogle Scholar
  20. Teasdale N, Stelmach GE, Breunig A (1991) Postural sway characteristics of the elderly under normal and altered visual and support surface conditions. J Gerontol 46:B238–B244PubMedGoogle Scholar
  21. van der Kooij H, Jacobs R, Koopman B, van der Helm F (2001) An adaptive model of sensory integration in a dynamic environment applied to human stance control. Biol Cybern 84:103–115CrossRefPubMedGoogle Scholar
  22. Winter DA (1991) Biomechanics and motor control of human movement, 2nd edn. Wiley-Interscience, New YorkGoogle Scholar
  23. Wolfson LI, Whipple R, Amerman P, Kaplan J, Kleinberg (1985) Gait and balance in the elderly. Two functional capacities that link sensory and motor ability to falls. Clin Geriatr Med 1:649–659PubMedGoogle Scholar
  24. Woollacott MH, Shumway-Cook A, Nashner LM (1986) Aging and posture control: changes in sensory organization and muscular coordination. Int J Aging Hum Dev 23:97–114PubMedGoogle Scholar
  25. Peterka RJ, Loughlin P (2004) Dynamic regulation of sensorimotor integration in human postural control. J Neurophysiol 91:410–423CrossRefPubMedGoogle Scholar
  26. van der Kooij H, Jacobs R, Koopman B, Grootenboer H (1999) A multisensory integration model of human stance control. Biol Cybern 80:299–308CrossRefPubMedGoogle Scholar

Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • Elena Ravaioli
    • 1
    • 4
  • Kelvin S. Oie
    • 1
    • 2
  • Tim Kiemel
    • 1
    • 3
  • Lorenzo Chiari
    • 4
  • John J. Jeka
    • 1
    • 2
  1. 1.Department of KinesiologyUniversity of MarylandCollege ParkUSA
  2. 2.Program in Neuroscience and Cognitive ScienceUniversity of MarylandCollege ParkUSA
  3. 3.Department of BiologyUniversity of MarylandCollege ParkUSA
  4. 4.Biomedical Engineering Unit, Department of Electronics, Computer Science and SystemsUniversity of BolognaBolognaItaly

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