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Illusion Effects on Grasping Are Temporally Constant Not Dynamic

MPG-Autoren
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Franz,  VH
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

Externe Ressourcen

https://psycnet.apa.org/fulltext/2005-15838-014.pdf
(Verlagsversion)

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Zitation

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.


Zitierlink: https://hdl.handle.net/21.11116/0000-0004-D757-8
Zusammenfassung
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.