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  Illusion Effects on Grasping Are Temporally Constant Not Dynamic

Franz, V., Scharnowski, F., & Gegenfurtner, K. (2005). Illusion Effects on Grasping Are Temporally Constant Not Dynamic. Journal of Experimental Psychology: Human Perception and Performance, 31(6), 1359-1378. doi:10.1037/0096-1523.31.6.1359.

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Franz, VH1, 2, Author           
Scharnowski, F, Author
Gegenfurtner, KR, 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: The authors tested whether the effects of the Ebbinghaus illusion on grasping are corrected during late phases of the movement. Surprisingly, the grasp aperture was corrected neither under no-vision (N = 52) nor under full-vision (N = 48) conditions. The authors show that previous reports of a correction (e.g., S. Glover & P. Dixon, 2002a) are due to 2 artifacts: (a) inclusion of time points at which the target object was already touched and (b) erroneous statistics. This removes the central evidence on which S. Glover and P. Dixon's (2001a) planning-control model of action is based. In addition, the authors' results can help to refine more classic notions of motor control (e.g., R. Woodworth, 1899). In consequence, the authors reject S. Glover and P. Dixon's (2001a) planning-control model but not classic online-control theories.

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 Dates: 2005-12
 Publication Status: Published in print
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 Identifiers: DOI: 10.1037/0096-1523.31.6.1359
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Title: Journal of Experimental Psychology: Human Perception and Performance
Source Genre: Journal
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Publ. Info: Washington : American Psychological Association (PsycARTICLES)
Pages: - Volume / Issue: 31 (6) Sequence Number: - Start / End Page: 1359 - 1378 Identifier: ISSN: 0096-1523
CoNE: https://pure.mpg.de/cone/journals/resource/954927546243