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Intermanual transfer and retention of visuomotor adaptation to a large visuomotor distortion are driven by explicit processes
Reaching with a visuomotor distortion in a virtual environment leads to reach adaptation in the trained hand, and in the untrained hand. In the current study we asked if reach adaptation in the untrained (right) hand is due to transfer of explicit adaptation (EA; strategic changes in reaches) and/or...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Public Library of Science
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7799748/ https://www.ncbi.nlm.nih.gov/pubmed/33428665 http://dx.doi.org/10.1371/journal.pone.0245184 |
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author | Bouchard, Jean-Michel Cressman, Erin K. |
author_facet | Bouchard, Jean-Michel Cressman, Erin K. |
author_sort | Bouchard, Jean-Michel |
collection | PubMed |
description | Reaching with a visuomotor distortion in a virtual environment leads to reach adaptation in the trained hand, and in the untrained hand. In the current study we asked if reach adaptation in the untrained (right) hand is due to transfer of explicit adaptation (EA; strategic changes in reaches) and/or implicit adaptation (IA; unconscious changes in reaches) from the trained (left) hand, and if this transfer changes depending on instructions provided. We further asked if EA and IA are retained in both the trained and untrained hands. Participants (n = 60) were divided into 3 groups (Instructed (provided with instructions on how to counteract the visuomotor distortion), Non-Instructed (no instructions provided), and Control (EA not assessed)). EA and IA were assessed in both the trained and untrained hands immediately following rotated reach training with a 40° visuomotor distortion, and again 24 hours later by having participants reach in the absence of cursor feedback. Participants were to reach (1) so that the cursor landed on the target (EA + IA), and (2) so that their hand landed on the target (IA). Results revealed that, while initial EA observed in the trained hand was greater for the Instructed versus Non-Instructed group, the full extent of EA transferred between hands for both groups and was retained across days. IA observed in the trained hand was greatest in the Non-Instructed group. However, IA did not significantly transfer between hands for any of the three groups. Limited retention of IA was observed in the trained hand. Together, these results suggest that while initial EA and IA in the trained hand are dependent on instructions provided, transfer and retention of visuomotor adaptation to a large visuomotor distortion are driven almost exclusively by EA. |
format | Online Article Text |
id | pubmed-7799748 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-77997482021-01-22 Intermanual transfer and retention of visuomotor adaptation to a large visuomotor distortion are driven by explicit processes Bouchard, Jean-Michel Cressman, Erin K. PLoS One Research Article Reaching with a visuomotor distortion in a virtual environment leads to reach adaptation in the trained hand, and in the untrained hand. In the current study we asked if reach adaptation in the untrained (right) hand is due to transfer of explicit adaptation (EA; strategic changes in reaches) and/or implicit adaptation (IA; unconscious changes in reaches) from the trained (left) hand, and if this transfer changes depending on instructions provided. We further asked if EA and IA are retained in both the trained and untrained hands. Participants (n = 60) were divided into 3 groups (Instructed (provided with instructions on how to counteract the visuomotor distortion), Non-Instructed (no instructions provided), and Control (EA not assessed)). EA and IA were assessed in both the trained and untrained hands immediately following rotated reach training with a 40° visuomotor distortion, and again 24 hours later by having participants reach in the absence of cursor feedback. Participants were to reach (1) so that the cursor landed on the target (EA + IA), and (2) so that their hand landed on the target (IA). Results revealed that, while initial EA observed in the trained hand was greater for the Instructed versus Non-Instructed group, the full extent of EA transferred between hands for both groups and was retained across days. IA observed in the trained hand was greatest in the Non-Instructed group. However, IA did not significantly transfer between hands for any of the three groups. Limited retention of IA was observed in the trained hand. Together, these results suggest that while initial EA and IA in the trained hand are dependent on instructions provided, transfer and retention of visuomotor adaptation to a large visuomotor distortion are driven almost exclusively by EA. Public Library of Science 2021-01-11 /pmc/articles/PMC7799748/ /pubmed/33428665 http://dx.doi.org/10.1371/journal.pone.0245184 Text en © 2021 Bouchard, Cressman http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Bouchard, Jean-Michel Cressman, Erin K. Intermanual transfer and retention of visuomotor adaptation to a large visuomotor distortion are driven by explicit processes |
title | Intermanual transfer and retention of visuomotor adaptation to a large visuomotor distortion are driven by explicit processes |
title_full | Intermanual transfer and retention of visuomotor adaptation to a large visuomotor distortion are driven by explicit processes |
title_fullStr | Intermanual transfer and retention of visuomotor adaptation to a large visuomotor distortion are driven by explicit processes |
title_full_unstemmed | Intermanual transfer and retention of visuomotor adaptation to a large visuomotor distortion are driven by explicit processes |
title_short | Intermanual transfer and retention of visuomotor adaptation to a large visuomotor distortion are driven by explicit processes |
title_sort | intermanual transfer and retention of visuomotor adaptation to a large visuomotor distortion are driven by explicit processes |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7799748/ https://www.ncbi.nlm.nih.gov/pubmed/33428665 http://dx.doi.org/10.1371/journal.pone.0245184 |
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