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  Combination and Integration in the Perception of Visual-Haptic Compliance Information

Kuschel, M., Di Luca, M., Buss, M., & Klatzky, R. (2010). Combination and Integration in the Perception of Visual-Haptic Compliance Information. IEEE Transactions on Haptics, 3(4), 234-244. doi:10.1109/TOH.2010.9.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-BDB6-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-6A70-9
Genre: Journal Article

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 Creators:
Kuschel, M, Author
Di Luca, M1, 2, 3, Author              
Buss, M, Author
Klatzky, RL, Author              
Affiliations:
1Research Group Multisensory Perception and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497806              
2Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
3Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: The compliance of a material can be conveyed through mechanical interactions in a virtual environment and perceived through both visual and haptic cues.We investigated this basic aspect of perception. In two experiments subjects performed compliance discriminations, and the mean perceptual estimate (PSE) and and the perceptual standard deviation (proportional to JND) were derived from psychophysical functions. Experiment 1 supported a model in which each modality acted independently to produce a compliance estimate, and the two estimates were then integrated to produce an overall value. Experiment 2 tested three mathematical models of the integration process. The data ruled out exclusive reliance on the more reliable modality and stochastic selection of one modality. Instead the results supported an integration process that constitutes a weighted summation of two random variables, which are defined by the single modality estimates. The model subsumes optimal fusion but provided valid predictions also if the weights were not optimal. Weights were optimal (i.e., minimized variance) when vision and haptic inputs were congruent, but not when they were incongruent.

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 Dates: 2010-10
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1109/TOH.2010.9
BibTex Citekey: 5625
 Degree: -

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Title: IEEE Transactions on Haptics
Source Genre: Journal
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Publ. Info: New York, NY : IEEE
Pages: - Volume / Issue: 3 (4) Sequence Number: - Start / End Page: 234 - 244 Identifier: ISSN: 2329-4051
CoNE: https://pure.mpg.de/cone/journals/resource/23294051