Visuomotor learning enhanced by augmenting instantaneous trajectory error feedback during reaching. PLoS One 2013;8(1):e46466
Date
02/06/2013Pubmed ID
23382796Pubmed Central ID
PMC3559751DOI
10.1371/journal.pone.0046466Scopus ID
2-s2.0-84873803022 (requires institutional sign-in at Scopus site) 66 CitationsAbstract
We studied reach adaptation to a 30° visuomotor rotation to determine whether augmented error feedback can promote faster and more complete motor learning. Four groups of healthy adults reached with their unseen arm to visual targets surrounding a central starting point. A manipulandum tracked hand motion and projected a cursor onto a display immediately above the horizontal plane of movement. For one group, deviations from the ideal movement were amplified with a gain of 2 whereas another group experienced a gain of 3.1. The third group experienced an offset equal to the average error seen in the initial perturbations, while a fourth group served as controls. Learning in the gain 2 and offset groups was nearly twice as fast as controls. Moreover, the offset group averaged more reduction in error. Such error augmentation techniques may be useful for training novel visuomotor transformations as required of robotic teleoperators or in movement rehabilitation of the neurologically impaired.
Author List
Patton JL, Wei YJ, Bajaj P, Scheidt RAAuthor
Robert Scheidt BS,MS,PhD Associate Professor in the Biomedical Engineering department at Marquette UniversityMESH terms used to index this publication - Major topics in bold
Adaptation, PhysiologicalAdult
Arm
Feedback, Sensory
Female
Hand
Humans
Learning
Male
Movement
Psychomotor Performance
Reaction Time
