Human Hand Movement Kinematics and Kinesthesia

Schmiedeler, James P.; Stephens, Joanna; Peterson, Clayton; Darling, Warren G.

doi:10.1007/978-1-4020-2249-4_18

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Mathematical Formulation Frame M1

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2006

2007

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Cited by 3 publications

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“…An additional transformation would be required to relate these frames to the environment since the trunk-fixed and visual coordinate systems do not coincide (Schmiedeler et al, 2004). In Fig.…”

Section: Mathematical Formulation Frame Mmentioning

confidence: 99%

Advances in Robot Kinematics

2006

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Section: Mathematical Formulation Frame Mmentioning

confidence: 99%

Advances in Robot Kinematics

2006

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Modeling time invariance in human arm motion coordination

Ambike

Schmiedeler

Advances in Robot Kinematics

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Perception of hand motion direction uses a gravitational reference

et al. 2007

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We studied possible frames of reference for kinesthetic perception of imposed hand motion direction in the frontal plane in ten young adult subjects with no history of neuromuscular disease. In one experiment, subjects were instructed to set unseen hand motion imposed by a motorized linear slide device parallel to the trunk-fixed longitudinal axis, seven visually specified axes and vertical (gravitational axis) while in a standard erect head/trunk posture and with head/trunk orientation varied. The visually specified axes were presented on a head-mounted display that also blocked vision of the external environment. In a second experiment using the same device, subjects set unseen hand motion parallel to vertical and to subjective oblique directions of 45 degrees clockwise (cw) and counter clockwise (ccw) from vertical in erect and varied head/trunk postures. Errors for setting hand motion to vertical and to verbally specified oblique axes (45 degrees cw and ccw from vertical) were lower than to the trunk longitudinal axis and visually specified axes. There were clear oblique effects in setting hand motion to visually specified axes and to subjective oblique (45 degrees cw and ccw) axes. When head and trunk orientation were varied, variable errors were higher for all axes, but remained lowest for vertical and subjective oblique axes. Moreover, errors for setting hand motion to all axes depended on head/trunk orientation. Overall, these results show that kinesthetic perception of imposed hand motion uses a subjective gravitational frame of reference that varies somewhat with head/trunk orientation.

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Human Hand Movement Kinematics and Kinesthesia

Cited by 3 publications

References 12 publications

Advances in Robot Kinematics

Advances in Robot Kinematics

Modeling time invariance in human arm motion coordination

Perception of hand motion direction uses a gravitational reference

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