caa a22 4500 445354399 CHVBK 20180317142855.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s00221-010-2505-y doi (NATIONALLICENCE)springer-10.1007/s00221-010-2505-y Influence of multisensory graviceptive information on the apparent zenith [Elektronische Daten] [J. Carriot, C. Cian, A. Paillard, P. Denise, J. Lackner] 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 1.2g with the otolith organs positioned 50 or 100cm 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. Springer-Verlag, 2010 Acceleration nationallicence Vestibular system nationallicence Otoliths nationallicence Orientation nationallicence Gravity nationallicence Gravitoinertial force nationallicence Perception nationallicence Visual vertical nationallicence Somatosensation nationallicence Proprioception nationallicence Carriot J. Département des Facteurs Humains, Centre de Recherches du Service de Santé des Armées, BP 87, 38702, Grenoble, La Tronche Cedex, France aut Cian C. Département des Facteurs Humains, Centre de Recherches du Service de Santé des Armées, BP 87, 38702, Grenoble, La Tronche Cedex, France aut Paillard A. Département des Facteurs Humains, Centre de Recherches du Service de Santé des Armées, BP 87, 38702, Grenoble, La Tronche Cedex, France aut Denise P. UPRES EA 3917, CHU de Caen, Caen, France aut Lackner J. Ashton Graybiel Spatial Orientation Laboratory and Volen Center, Brandeis University, Waltham, MA, USA aut Experimental Brain Research Springer-Verlag 208/4(2011-02-01), 569-579 0014-4819 208:4<569 2011 208 221 https://doi.org/10.1007/s00221-010-2505-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00221-010-2505-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Carriot J. Département des Facteurs Humains, Centre de Recherches du Service de Santé des Armées, BP 87, 38702, Grenoble, La Tronche Cedex, France aut NATIONALLICENCE 700 1- Cian C. Département des Facteurs Humains, Centre de Recherches du Service de Santé des Armées, BP 87, 38702, Grenoble, La Tronche Cedex, France aut NATIONALLICENCE 700 1- Paillard A. Département des Facteurs Humains, Centre de Recherches du Service de Santé des Armées, BP 87, 38702, Grenoble, La Tronche Cedex, France aut NATIONALLICENCE 700 1- Denise P. UPRES EA 3917, CHU de Caen, Caen, France aut NATIONALLICENCE 700 1- Lackner J. Ashton Graybiel Spatial Orientation Laboratory and Volen Center, Brandeis University, Waltham, MA, USA aut NATIONALLICENCE 773 0- Experimental Brain Research Springer-Verlag 208/4(2011-02-01), 569-579 0014-4819 208:4<569 2011 208 221 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer