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Poster

The impact of gravitoinertial cues on the perception of lateral self-motion

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons84114

Nusseck,  H-G
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84255

Teufel,  HJ
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84378

Campos,  JL
Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons83839

Bülthoff,  HH
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Zitation

Nusseck, H.-G., Teufel, H., Campos, J., & Bülthoff, H. (2008). The impact of gravitoinertial cues on the perception of lateral self-motion. Poster presented at 9th International Multisensory Research Forum (IMRF 2008), Hamburg, Germany.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-C891-E
Zusammenfassung
It is typically assumed that during passive motion in darkness, velocity and traveled distances are estimated by inertial signals. The forces occurring during linear acceleration can be detected by vestibular and other sensory systems. These inertial forces are in principle indistinguishable from comparable gravitational forces during tilted orientations. In this study, we used this tilt-translation ambiguity to systematically alter gravitoinertial forces and evaluated the effect on the perception of curved-linear translation. Participants were seated in a completely dark room on the MPI Motion Simulator and used a steering wheel to control lateral motion on an arc. A target was briefly flashed in the darkness and participants were asked to move to it. A sideways tilt was applied either in the same or in the opposite direction of lateral movement to attenuate or enhance gravitoinertial forces. Attenuating gravitoinertial forces did not affect distance estimates, whereas enhancing gravitoinertial forces resulted in a significant but small decrease in produced distances. This suggests that self-motion perception in the absence of visual information might not be as strongly influenced by gravitoinertial forces as typically assumed. It might be based more on non-directional sensory information such as noise and vibrations that accompany almost any motion.