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  Welcome to wonderland: The apparent size of the self-avatar hands and arms influences perceived size and shape in virtual environments

Linkenauger, S., Mohler, B., & Bülthoff, H. (2011). Welcome to wonderland: The apparent size of the self-avatar hands and arms influences perceived size and shape in virtual environments. Perception, 40(ECVP Abstract Supplement), 46.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-BAAC-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-4613-A
Genre: Meeting Abstract

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Linkenauger, S1, 2, Author              
Mohler, BJ1, 2, 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: Welcome to wonderland: The apparent size of the self-avatar hands and arms influences perceived size and shape in virtual environments S A Linkenauger, B J Mohler, H H Bülthoff According to the functional approach to the perception of spatial layout, angular optic variables that indicate extents are scaled to the body and its action capabilities [cf Proffitt, 2006 Perspectives on Psychological Science 1(2) 110–122]. For example, reachable extents are perceived as a proportion of the maximum extent to which one can reach, and the apparent sizes of graspable objects are perceived as a proportion of the maximum extent that one can grasp (Linkenauger et al, 2009 Journal of Experimental Psychology: Human Perceptiion and Performance; 2010 Psychological Science). Therefore, apparent sizes and distances should be influenced by changing scaling aspects of the body. To test this notion, we immersed participants into a full cue virtual environment. Participants’ head, arm and hand movements were tracked and mapped onto a first-person, self-representing avatar in real time. We manipulated the participants’ visual information about their body by changing aspects of the self-avatar (hand size and arm length). Perceptual verbal and action judgments of the sizes and shapes of virtual objects’ (spheres and cubes) varied as a function of the hand/arm scaling factor. These findings provide support for a body-based approach to perception and highlight the impact of self-avatars’ bodily dimensions for users’ perceptions of space in virtual environments.

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 Dates: 2011-09
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: LinkenaugerMB2011_2
DOI: 10.1177/03010066110400S102
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Title: 34th European Conference on Visual Perception
Place of Event: Toulouse, France
Start-/End Date: 2011-08-28 - 2011-09-01

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Title: Perception
Source Genre: Journal
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Publ. Info: London : Pion Ltd.
Pages: - Volume / Issue: 40 (ECVP Abstract Supplement) Sequence Number: - Start / End Page: 46 Identifier: ISSN: 0301-0066
CoNE: https://pure.mpg.de/cone/journals/resource/954925509369