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Conference Paper

Visuomotor adaptation: Dependency on motion trajectory


Cunningham,  DW
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Kaernbach, C., Munka, L., & Cunningham, D. (2002). Visuomotor adaptation: Dependency on motion trajectory. Dynamic Perception, 177-182.

Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-DE5E-6
The present contribution studies the rapid adaptation process of the visuomotor system to optical transformations (here: shifting the image horizon-tally via prism goggles). It is generally believed that this adaptation consists primarily of recalibrating the transformation between visual and proprioceptive perception. According to such a purely perceptual account of adaptation, the exact path used to reach the object should not be important. If, however, it is the transformation from perception to action that is being altered, then the adapta-tion should depend on the motion trajectory. In experiments with a variety of different motion trajectories we show that visuomotor adaptation is not merely a perceptual recalibration. The structure of the motion (starting position, trajec-tory, end position) plays a central role, and even the weight load seems to be important. These results have strong implications for all models of visuomotor adaptation.