Visual error augmentation enhances learning in three dimensions

<p>Abstract</p> <p>Because recent preliminary evidence points to the use of Error augmentation (EA) for motor learning enhancements, we visually enhanced deviations from a straight line path while subjects practiced a sensorimotor reversal task, similar to laparoscopic surgery. Our...

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Main Authors: Huang Felix, Sharp Ian, Patton James
Format: Article
Language:English
Published: BMC 2011-09-01
Series:Journal of NeuroEngineering and Rehabilitation
Online Access:http://www.jneuroengrehab.com/content/8/1/52
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author Huang Felix
Sharp Ian
Patton James
author_facet Huang Felix
Sharp Ian
Patton James
author_sort Huang Felix
collection DOAJ
description <p>Abstract</p> <p>Because recent preliminary evidence points to the use of Error augmentation (EA) for motor learning enhancements, we visually enhanced deviations from a straight line path while subjects practiced a sensorimotor reversal task, similar to laparoscopic surgery. Our study asked 10 healthy subjects in two groups to perform targeted reaching in a simulated virtual reality environment, where the transformation of the hand position matrix was a complete reversal--rotated 180 degrees about an arbitrary axis (hence 2 of the 3 coordinates are reversed). Our data showed that after 500 practice trials, error-augmented-trained subjects reached the desired targets more quickly and with lower error (differences of 0.4 seconds and 0.5 cm Maximum Perpendicular Trajectory deviation) when compared to the control group. Furthermore, the manner in which subjects practiced was influenced by the error augmentation, resulting in more continuous motions for this group and smaller errors. Even with the extreme sensory discordance of a reversal, these data further support that distorted reality can promote more complete adaptation/learning when compared to regular training. Lastly, upon removing the flip all subjects quickly returned to baseline rapidly within 6 trials.</p>
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spelling doaj.art-edd41f8da93c4ebda0a81555a33608a02022-12-22T01:08:58ZengBMCJournal of NeuroEngineering and Rehabilitation1743-00032011-09-01815210.1186/1743-0003-8-52Visual error augmentation enhances learning in three dimensionsHuang FelixSharp IanPatton James<p>Abstract</p> <p>Because recent preliminary evidence points to the use of Error augmentation (EA) for motor learning enhancements, we visually enhanced deviations from a straight line path while subjects practiced a sensorimotor reversal task, similar to laparoscopic surgery. Our study asked 10 healthy subjects in two groups to perform targeted reaching in a simulated virtual reality environment, where the transformation of the hand position matrix was a complete reversal--rotated 180 degrees about an arbitrary axis (hence 2 of the 3 coordinates are reversed). Our data showed that after 500 practice trials, error-augmented-trained subjects reached the desired targets more quickly and with lower error (differences of 0.4 seconds and 0.5 cm Maximum Perpendicular Trajectory deviation) when compared to the control group. Furthermore, the manner in which subjects practiced was influenced by the error augmentation, resulting in more continuous motions for this group and smaller errors. Even with the extreme sensory discordance of a reversal, these data further support that distorted reality can promote more complete adaptation/learning when compared to regular training. Lastly, upon removing the flip all subjects quickly returned to baseline rapidly within 6 trials.</p>http://www.jneuroengrehab.com/content/8/1/52
spellingShingle Huang Felix
Sharp Ian
Patton James
Visual error augmentation enhances learning in three dimensions
Journal of NeuroEngineering and Rehabilitation
title Visual error augmentation enhances learning in three dimensions
title_full Visual error augmentation enhances learning in three dimensions
title_fullStr Visual error augmentation enhances learning in three dimensions
title_full_unstemmed Visual error augmentation enhances learning in three dimensions
title_short Visual error augmentation enhances learning in three dimensions
title_sort visual error augmentation enhances learning in three dimensions
url http://www.jneuroengrehab.com/content/8/1/52
work_keys_str_mv AT huangfelix visualerroraugmentationenhanceslearninginthreedimensions
AT sharpian visualerroraugmentationenhanceslearninginthreedimensions
AT pattonjames visualerroraugmentationenhanceslearninginthreedimensions