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  Motion-induced shift and navigation in virtual reality

Friedrich, B., Caniard, F., Chatziastros, A., Mamassian, P., & Thornton, I. (2004). Motion-induced shift and navigation in virtual reality. Poster presented at 27th European Conference on Visual Perception (ECVP 2004), Budapest, Hungary.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-D84D-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-6213-7
Genre: Poster

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Friedrich, B, Author
Caniard, F1, 2, Author              
Chatziastros, A1, 2, Author              
Mamassian, P, Author              
Thornton, IM1, 2, Author              
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: De Valois and De Valois (1991 Vision Research 31 1619-1626) showed that moving Gabors (cosine gratings windowed by a stationary 2-dimensional Gaussian envelope) are locally misperceived in their direction of motion. In a pointing task, Yamagishi, Anderson and Ashida (2001 Proceedings of the Royal Society 268 973-977) reported even stronger visuo-motor localization error especially when participants had to make a speeded response. Here, we examined motion-induced bias in the context of an active navigation task, a situation in which perception and action are tightly coupled. Participants were presented with a birds-eye view of a vertically moving contour that simulated observer motion along a path. Observers centrally fixated while the path and a moving Gabor target were presented peripherally. The task was to follow the path with the moving Gabor, whose position (left/right) and direction(towards left/right) were varied in separate blocks. Gabor eccentricity was constant relative to fixation, with observers adjusting their simulated position with a joystick. Deviations from the path were analyzed as a function of Gabor direction. We found large and consistent misalignment in the direction of the moving Gabor, indicating that global position/motion judgments during action can be strongly affected by irrelevant local motion signals.

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 Dates: 2004-09
 Publication Status: Published in print
 Pages: -
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 Rev. Type: -
 Identifiers: BibTex Citekey: 2840
DOI: 10.1068/ecvp04a
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Title: 27th European Conference on Visual Perception (ECVP 2004)
Place of Event: Budapest, Hungary
Start-/End Date: 2004-08-22 - 2004-08-26

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Title: Perception
Source Genre: Journal
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Publ. Info: London : Pion Ltd.
Pages: - Volume / Issue: 33 (ECVP Abstract Supplement) Sequence Number: - Start / End Page: 164 - 165 Identifier: ISSN: 0301-0066
CoNE: https://pure.mpg.de/cone/journals/resource/954925509369