Suppression of visually evoked postural responses (original) (raw)
Summary
Normal subjects standing on an earth-fixed force platform inside a movable room displaced at velocities comparable to those accompanying spontaneous body sway, exhibit a visually evoked postural response (VEPR) some 600 ms after the start of the room movement. It consists of a displacement of the centre of force of the body in the direction of the stimulus (primary component), followed shortly by a corrective displacement in the opposite (secondary component). On second presentation of the stimulus VEPR is markedly reduced, but only if full proprioceptive information from the lower limbs is available to the subjects. A patient deprived of this information showed much enhanced VEPR which he was unable to suppress, in contrast to a patient with absent vestibular function who presented normal VEPR. The results show that in the presence of conflict between different sensory clues, vision is initially dominant in sway control, although adaptive processes can quickly rearrange this hierarchy.
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References
- Clement G, Jacquin T, Berthoz A (1985) Habituation of postural readjustments induced by motion of visual scenes. In: Igarashi M, Black FO (eds) Vestibular and visual control on posture and locomotor equilibrium. Karger, Basel, pp 99–104
Google Scholar - Hufschmidt A, Dichgans J, Mauritz KH, Hufschmidt M (1980) Some methods and parameters of body sway quantification and their neurological applications. Arch Psychiat Nervenkr 228: 135–150
Google Scholar - Lee DN, Lishman JR (1975) Visual proprioceptive control of stance. J Hum Mov Stud 1: 87–95
Google Scholar - Lestienne F, Soechting J, Berthoz A (1977) Postural readjustments induced by linear motion of visual scenes. Exp Brain Res 28: 363–384
Google Scholar - Talbott RE, Brookhart JM (1980) A predictive model study of the visual contribution to canine postural control. Am J Physiol 239: R80-R92
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Authors and Affiliations
- Medical Research Council Neuro-Otology Unit, Institute of Neurology, National Hospital, Queen Square, WC1N 3BG, London, UK
A. M. Bronstein
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Bronstein, A.M. Suppression of visually evoked postural responses.Exp Brain Res 63, 655–658 (1986). https://doi.org/10.1007/BF00237488
- Received: 09 December 1985
- Accepted: 13 May 1986
- Issue date: August 1986
- DOI: https://doi.org/10.1007/BF00237488