Investigation of the parameters affecting Fitts' law on reciprocal arm movements

The speed-accuracy trade-off in motor tasks is well-known. An error within a movement can increase with the speed of the movement. Fitts’ law formulizes the relationship between speed and accuracy. Several studies have confirmed the validity of Fitts’ law in various types of motor tasks. However, th...

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Main Authors: Takashi OYAMA, Teruaki ITO
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2021-10-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/87/903/87_21-00218/_pdf/-char/en
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author Takashi OYAMA
Teruaki ITO
author_facet Takashi OYAMA
Teruaki ITO
author_sort Takashi OYAMA
collection DOAJ
description The speed-accuracy trade-off in motor tasks is well-known. An error within a movement can increase with the speed of the movement. Fitts’ law formulizes the relationship between speed and accuracy. Several studies have confirmed the validity of Fitts’ law in various types of motor tasks. However, the reason why this law can provide a good regression of the movement duration on the speed and accuracy of the movement has not been clarified. In this study, the influence of the dynamic parameters of arms, the magnitude of the signal-dependent noise, and a criterion of movement smoothness on the Fitts’ law was investigated to gain insight into the speed–accuracy trade-off. Computer simulations of a reciprocal arm movement task were examined. Moreover, it was attempted to interpret the speed–accuracy trade-off by mathematically approximating a human arm as a mass–damper system. Consequently, it was revealed that positive viscosity did not affect the motor control based on the Fitts' law, whereas negative viscosity prevented obedience to the law.
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spelling doaj.art-da4fb24d1c4149b4a0fafde8126d6ed42022-12-22T04:14:07ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612021-10-018790321-0021821-0021810.1299/transjsme.21-00218transjsmeInvestigation of the parameters affecting Fitts' law on reciprocal arm movementsTakashi OYAMA0Teruaki ITO1Faculty of Computer Science and Systems Engineering, Okayama Prefectural UniversityFaculty of Computer Science and Systems Engineering, Okayama Prefectural UniversityThe speed-accuracy trade-off in motor tasks is well-known. An error within a movement can increase with the speed of the movement. Fitts’ law formulizes the relationship between speed and accuracy. Several studies have confirmed the validity of Fitts’ law in various types of motor tasks. However, the reason why this law can provide a good regression of the movement duration on the speed and accuracy of the movement has not been clarified. In this study, the influence of the dynamic parameters of arms, the magnitude of the signal-dependent noise, and a criterion of movement smoothness on the Fitts’ law was investigated to gain insight into the speed–accuracy trade-off. Computer simulations of a reciprocal arm movement task were examined. Moreover, it was attempted to interpret the speed–accuracy trade-off by mathematically approximating a human arm as a mass–damper system. Consequently, it was revealed that positive viscosity did not affect the motor control based on the Fitts' law, whereas negative viscosity prevented obedience to the law.https://www.jstage.jst.go.jp/article/transjsme/87/903/87_21-00218/_pdf/-char/enfitts’ lawmotor controlarm movementmovement accuracyspeed-accuracy trade-offsignal-dependent noise
spellingShingle Takashi OYAMA
Teruaki ITO
Investigation of the parameters affecting Fitts' law on reciprocal arm movements
Nihon Kikai Gakkai ronbunshu
fitts’ law
motor control
arm movement
movement accuracy
speed-accuracy trade-off
signal-dependent noise
title Investigation of the parameters affecting Fitts' law on reciprocal arm movements
title_full Investigation of the parameters affecting Fitts' law on reciprocal arm movements
title_fullStr Investigation of the parameters affecting Fitts' law on reciprocal arm movements
title_full_unstemmed Investigation of the parameters affecting Fitts' law on reciprocal arm movements
title_short Investigation of the parameters affecting Fitts' law on reciprocal arm movements
title_sort investigation of the parameters affecting fitts apos law on reciprocal arm movements
topic fitts’ law
motor control
arm movement
movement accuracy
speed-accuracy trade-off
signal-dependent noise
url https://www.jstage.jst.go.jp/article/transjsme/87/903/87_21-00218/_pdf/-char/en
work_keys_str_mv AT takashioyama investigationoftheparametersaffectingfittsaposlawonreciprocalarmmovements
AT teruakiito investigationoftheparametersaffectingfittsaposlawonreciprocalarmmovements