Nature Neuroscience
- 9, 1364 - 1366 (2006)
Published online: 8 October 2006; | doi:10.1038/nn1785
Limited transfer of learning between unimanual and bimanual skills within the same limbDaichi Nozaki1, 2, 3, Isaac Kurtzer1 & Stephen H Scott11
Centre for Neuroscience Studies, Department of Anatomy and Cell Biology, Queen's University, Kingston, Ontario K7L 3N6, Canada. 2
Department of Rehabilitation for Movement Functions, Research Institute of National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama 359-8555, Japan. 3
Present address: Graduate School of Education, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.
Correspondence should be addressed to Daichi Nozaki nozaki@p.u-tokyo.ac.jp or Stephen H Scott steve@biomed.queensu.ca Although a limb's motion appears to be similar across unimanual and bimanual movements, here we demonstrate partial, but not complete, transfer of learning across these behavioral contexts, hidden learning that remains intact (but invisible) until the original context is again encountered, and the ability to associate two conflicting force fields simultaneously, one with each context. These results suggest partial, but not complete, overlap in the learning processes involved in the acquisition of unimanual and bimanual skills.
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