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UAL Research Online

Influence of multisensory graviceptive information on the apparent zenith

Carriot, Jerome and Cian, Corinne and Paillard, Aurora and Denise, Pierre and Lackner, James (2011) Influence of multisensory graviceptive information on the apparent zenith. Experimental Brain Research, 208 (4). pp. 569-579. ISSN 0014-4819

Type of Research: Article
Creators: Carriot, Jerome and Cian, Corinne and Paillard, Aurora and Denise, Pierre and Lackner, James
Description:

Abstract:

We studied the contribution of vestibular and somatosensory/proprioceptive stimulation to the perception of the apparent zenith (AZ). Experiment 1 involved rotation on a centrifuge and settings of the AZ. Subjects were supine on the centrifuge, and their body position was varied in relation to the rotation axis so that the gravitoinertial resultant force at the otoliths was 1 or 1.2 g with the otolith organs positioned 50 or 100 cm from the axis of rotation. Their legs were also positioned in different configurations, flexed and elevated or extended, to create different distributions of blood and lymph. Experiment 2 involved (a) settings of the AZ for subjects positioned supine with legs fully extended or legs flexed and elevated to create a torsoward shift of blood and (b) settings of the subjective visual vertical for subjects horizontally positioned on their sides with legs extended or bent. Experiment 3 had subjects in the same body configurations as in Experiment 2 indicate when they were horizontal as they were rotated in pitch or roll about an inter-aural or naso-occipital axis. The experimental results for all three experiments demonstrated that both visual localization and apparent body horizontal are jointly determined by multimodal combinations of otolithic and somatosensory/proprioceptive stimulation. No evidence was found for non-overlapping or exclusive mechanisms determining one or the other. The subjective postural horizontal and AZ were affected in similar ways by comparable manipulations.

Official Website: http://link.springer.com/article/10.1007/s00221-010-2505-y
Keywords/subjects not otherwise listed: Acceleration, Vestibular system, Otoliths, Orientation, Gravity, Gravitoinertial force, Perception, Visual vertical, Somatosensation, Proprioception
Publisher/Broadcaster/Company: Springer
Your affiliations with UAL: Colleges > London College of Fashion
Date: February 2011
Digital Object Identifier: 10.1007/s00221-010-2505-y
Date Deposited: 19 Oct 2016 09:36
Last Modified: 19 Oct 2016 11:12
Item ID: 10429
URI: http://ualresearchonline.arts.ac.uk/id/eprint/10429

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