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Effect of grip force and training in unstable dynamics on micromanipulation accuracy

Su , Eileen Lee Ming and Ganesh, Gowrishankar and Yeong, Che Fai and Teo, Chee Leong and Ang, Wei Tech and Burdet, Etienne (2011) Effect of grip force and training in unstable dynamics on micromanipulation accuracy. IEEE Transactions On Haptics, 4 (3). pp. 167-174. ISSN 1939-1412

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Official URL: http://dx.doi.org/10.1109/TOH.2011.33

Abstract

This paper investigates whether haptic error amplification using unstable dynamics can be used to train accuracy in micromanipulation. A preliminary experiment first examines the possible confounds of visual magnification and grip force. Results show that micromanipulation precision is not affected by grip force in both naive and experienced subjects. On the other hand, precision is increased by visual magnification of up to 10 ×, but not further for larger magnifications. The main experiment required subjects to perform small-range point-to-point movements in 3D space in an unstable environment which amplified position errors to the straight line between start and end point. After having trained in this environment, subjects performing in the free conditions show an increase in success rate and a decrease in error and its standard deviation relative to the control subjects. This suggests that this technique can improve accuracy and reliability of movements during micromanipulation.

Item Type:Article
Uncontrolled Keywords:accuracy, grip force, learning, Micromanipulation, unstable dynamics, visual magnification
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:28969
Deposited By: Liza Porijo
Deposited On:06 Dec 2012 08:42
Last Modified:06 Dec 2012 08:42

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