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Modeling and measuring limb fine-motor unsteadinessFine-motor unsteadiness its properties, conceptual and analytical models, and experimental measurements is examined. Based on a data review, the tentative model derived includes: neuromuscular system, grip interface, and control system dynamic elements. The properties of this model change with muscle tension and match a wide group of extant data. A simple experiment was performed to investigate the amplitude/force relationships of the tremor mode. As the finger-pull force increased from 5 to 20 Newtons, the tremor mode frequency for a given individual stayed within roughly + or - 1 Hz over a range from 9-12 Hz, while the average magnitude of the rms tremor acceleration increased tenfold. A standardized test for making such measurements is given and applications in the fields of psychophysiological stress and strain measurements are mentioned.
Document ID
19750011082
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Magdaleno, R. E. (Systems Technology, Inc. Hawthorne, CA, United States)
Jex, H. R. (Systems Technology, Inc. Hawthorne, CA, United States)
Allen, R. W. (Systems Technology, Inc. Hawthorne, CA, United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1973
Publication Information
Publication: MIT Proc. of the 9th Ann. Conf. on Manual Control
Subject Category
Behavioral Sciences
Accession Number
75N19154
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19750011054Collected WorksProceedings of the 9th Annual Conference on Manual Control
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