| Use-dependent and error-based learning of motor behaviors. | |
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MedLine Citation:
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PMID: 20392938 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Human motor behavior is constantly adapted through the process of error-based learning. When the motor system encounters an error, its estimate about the body and environment will change, and the next movement will be immediately modified to counteract the underlying perturbation. Here, we show that a second mechanism, use-dependent learning, simultaneously changes movements to become more similar to the last movement. In three experiments, participants made reaching movements toward a horizontally elongated target, such that errors in the initial movement direction did not have to be corrected. Along this task-redundant dimension, we were able to induce use-dependent learning by passively guiding movements in a direction angled by 8 degrees from the previous direction. In a second study, we show that error-based and use-dependent learning can change motor behavior simultaneously in opposing directions by physically constraining the direction of active movements. After removal of the constraint, participants briefly exhibit an error-based aftereffect against the direction of the constraint, followed by a longer-lasting use-dependent aftereffect in the direction of the constraint. In the third experiment, we show that these two learning mechanisms together determine the solution the motor system adopts when learning a motor task. |
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Authors:
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J?rn Diedrichsen; Olivier White; Darren Newman; N?all Lally |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: The Journal of neuroscience : the official journal of the Society for Neuroscience Volume: 30 ISSN: 1529-2401 ISO Abbreviation: J. Neurosci. Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-04-15 Completed Date: 2010-05-14 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8102140 Medline TA: J Neurosci Country: United States |
Other Details:
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Languages: eng Pagination: 5159-66 Citation Subset: IM |
Affiliation:
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Institute of Cognitive Neuroscience, University College London, London WC1N 3AR, United Kingdom. j.diedrichsen@ucl.ac.uk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Feedback, Psychological* Female Hand Humans Learning* Male Motor Activity* Practice (Psychology)* Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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BB/E009174/1//Biotechnology and Biological Sciences Research Council |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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