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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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Kuschel, M, Autor
Di Luca, M1, 2, 3, Autor           
Buss, M, Autor
Klatzky, RL, Autor           
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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 Zusammenfassung: 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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 Datum: 2010-10
 Publikationsstatus: Erschienen
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 Identifikatoren: DOI: 10.1109/TOH.2010.9
BibTex Citekey: 5625
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Titel: IEEE Transactions on Haptics
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: New York, NY : IEEE
Seiten: - Band / Heft: 3 (4) Artikelnummer: - Start- / Endseite: 234 - 244 Identifikator: ISSN: 2329-4051
CoNE: https://pure.mpg.de/cone/journals/resource/23294051