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  Effects of path length, visual and interoceptive information on path integration

Tcheang, L., Burgess, N., & Bülthoff, H. (2008). Effects of path length, visual and interoceptive information on path integration. Poster presented at 9th International Multisensory Research Forum (IMRF 2008), Hamburg, Germany.

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Tcheang, L1, 2, Author           
Burgess, N, Author
Bülthoff, HH1, 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: A number of experiments have shown that path integration in darkness can be accomplished using interoceptive information. We examine the contribution of vision to the accumulation of translational information during path integration in a return to origin task, using a fully immersive cue-rich virtual environment. Nine paths with varying lengths and numbers of turns were tested. During walking the outward legs of a path, a mis-match was introduced between actual translation and the perceived translation of the virtual environment, which was either increased or decreased. The return leg of the path was performed without vision. The mis-match trials were interleaved with two control conditions; one where vision matched interoceptive information exactly on the outward paths, and one without any visual input. ANOVA analysis on sixteen subjects showed a significant effect of the visual manipulation. Return path lengths were consistent with the visual manipulation suggesting a strong visual component to 'path integration' in this task. A separate effect of path length, depending on path type suggests that distance is underestimated for longer paths with more turns.

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 Dates: 2008-07
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: 5473
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Title: 9th International Multisensory Research Forum (IMRF 2008)
Place of Event: Hamburg, Germany
Start-/End Date: 2008-07-16 - 2008-07-19

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Title: 9th International Multisensory Research Forum (IMRF 2008)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 82 Start / End Page: 157 Identifier: -