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Poster

Contribution and interaction of visual and vestibular cues for spatial updating in real and virtual environments

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons84170

Riecke,  BE
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84287

von der Heyde,  M
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

Riecke, B., von der Heyde, M., & Bülthoff, H. (2002). Contribution and interaction of visual and vestibular cues for spatial updating in real and virtual environments. Poster presented at 43. Kongress der Deutschen Gesellschaft für Psychologie, Berlin, Germany.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-DF1A-5
Zusammenfassung
In a series of experiments, we established a speeded pointing paradigm to investigate the influence and interaction of visual and vestibular stimulus parameters for spatial updating in real and virtual environments. STIMULI: Participants saw either the real surround or a photorealistic virtual replica presented via HMD or projection screen. A Stewart motion platform was used for vestibular stimulation. TASK: After simulated or real ego-turns, participants were asked to quickly point towards different previously-learned target objects. Targets were announced consecutively via headphones and chosen to be outside of the current field of view. Performance in real and virtual environments was comparable. Photorealistic visual stimuli from well-known environments including an abundance of salient landmarks proved sufficient to initiate obligatory spatial updating and hence turn the world inside our head, even against our conscious will and without corresponding vestibular cues. Spatial updating benefitted from vestibular cues only when visual turn information was reduced to optic flow information only. There, however, spatial updating was impaired and no longer obligatory. Apart form the well-known smooth spatial updating induced by continuous movement information, we found also a discontinuous, jump-like spatial updating that allowed participants to quickly adopt a new orientation without any explicit motion cues.