Real-time motion force-feedback system with predictive-vision for improving motor accuracy

Many haptic guidance systems have been studied over the years; however, most of them have been limited to predefined guidance methods. Calculating guidance according to the operator’s motion is important for efficient human motor adaptation and learning. In this study, we developed a system that hap...

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Bibliographic Details
Published inScientific reports Vol. 14; no. 1; pp. 2168 - 11
Main Authors Matsui, Ryo, Aoyama, Tadayoshi, Kato, Kenji, Hasegawa, Yasuhisa
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 25.01.2024
Nature Publishing Group
Nature Portfolio
Subjects
631/378/1595
631/378/2632
Accuracy
Adaptation
Feedback
Humanities and Social Sciences
Humans
Learning
Motion
Motor skill learning
Motor task performance
multidisciplinary
Psychomotor Performance
Science
Science (multidisciplinary)
Vision systems
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Summary:Many haptic guidance systems have been studied over the years; however, most of them have been limited to predefined guidance methods. Calculating guidance according to the operator’s motion is important for efficient human motor adaptation and learning. In this study, we developed a system that haptically provides guidance trajectory by sequential weighting between the operator’s trajectory and the ideal trajectory calculated from a predictive-vision system. We investigated whether motion completion with a predictive-vision system affects human motor accuracy and adaptation in time-constrained goal-directed reaching and ball-hitting tasks through subject experiments. The experiment was conducted with 12 healthy participants, and all participants performed ball-hitting tasks. Half of the participants get forceful guidance from the proposed system in the middle of the experiment. We found that the use of the proposed system improved the operator’s motor performance. Furthermore, we observed a trend in which the improvement in motor performance using this system correlated with that after the washout of this system. These results suggest that the predictive-vision system effectively enhances motor accuracy to the target error in dynamic and time-constrained reaching and hitting tasks and may contribute to facilitating motor learning.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-024-52811-z