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  Humans Integrate Visual and Haptic Information in a Statistically Optimal Fashion

Ernst, M., & Banks, M. (2002). Humans Integrate Visual and Haptic Information in a Statistically Optimal Fashion. Nature, 415(6870), 429-433. doi:10.1038/415429a.

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資料種別: 学術論文

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 作成者:
Ernst, MO1, 著者           
Banks, MS2, 著者           
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1Research Group Multisensory Perception and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497806              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 要旨: When a person looks at an object while exploring it with their hand, vision and touch both provide information for estimating the properties of the object. Vision frequently dominates the integrated visual-haptic percept, for example when judging size, shape or position, but in some circumstances the percept is clearly affected by haptics. Here we propose that a general principle, which minimizes variance in the final estimate, determines the degree to which vision or haptics dominates. This principle is realized by using maximum-likelihood estimation to combine the inputs. To investigate cue combination quantitatively, we first measured the variances associated with visual and haptic estimation of height. We then used these measurements to construct a maximum-likelihood integrator. This model behaved very similarly to humans in a visual-haptic task. Thus, the nervous system seems to combine visual and haptic information in a fashion that is similar to a maximum-likelihood integrator. Visual dominance occurs when the variance associated with visual estimation is lower than that associated with haptic estimation.

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 日付: 2002-01
 出版の状態: 出版
 ページ: -
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 識別子(DOI, ISBNなど): URI: http://www.nature.com/nature/journal/v415/n6870/pdf/415429a.pdf
DOI: 10.1038/415429a
BibTex参照ID: 1005
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出版物名: Nature
種別: 学術雑誌
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ページ: - 巻号: 415 (6870) 通巻号: - 開始・終了ページ: 429 - 433 識別子(ISBN, ISSN, DOIなど): -