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  Switching between visuomotor mappings: learning absolute mappings or relative shifts?

van Dam, L., Hawellek, D., & Ernst, M. (2008). Switching between visuomotor mappings: learning absolute mappings or relative shifts?. Poster presented at 31st European Conference on Visual Perception (ECVP 2008), Utrecht, The Netherlands.

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 Creators:
van Dam, LCJ1, 2, Author              
Hawellek, DJ1, 2, 3, Author              
Ernst, MO1, 2, Author              
Affiliations:
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, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              
3Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              

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 Abstract: Adaptation to specific visuomotor conflicts becomes faster with repetition. What is learned when repeatedly switching between different visuomotor mappings: the absolute mappings or the relative shift between the mappings? To test this, we trained participants in a rapid pointing task using a unique colour cue for each mapping between pointing location and visual feedback. After extensive training, participants adapted to a new mapping using a neutral cue. For catch trials (a change in cue and no visual feedback) different adaptation performances are predicted depending on how the mappings are encoded. When encoding an absolute mapping for each cue, participants would fall back to the mapping associated with the cue irrespective of the mapping prior to the cue-switch. In contrast, when for the cue-switch a shift in mapping is encoded, pointing performance will shift relative to the mapping prior cue-switch by an amount equal to the difference between the previously learned mappings. Results indicate that the cues signal absolute visuomotor mappings rather than relative shifts between mappings.

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 Dates: 2008-08
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: BibTex Citekey: 5322
DOI: 10.1177/03010066080370S101
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Title: 31st European Conference on Visual Perception (ECVP 2008)
Place of Event: Utrecht, The Netherlands
Start-/End Date: 2008-08-24 - 2008-08-28

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Title: Perception
Source Genre: Journal
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Publ. Info: London : Pion Ltd.
Pages: - Volume / Issue: 37 (ECVP Abstract Supplement) Sequence Number: - Start / End Page: 109 Identifier: ISSN: 0301-0066
CoNE: https://pure.mpg.de/cone/journals/resource/954925509369