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Dissertation
Assistive strategies for people with fine motor skills impairments based on an analysis of sub-movements
University of Iowa
Doctor of Philosophy (PhD), University of Iowa
Summer 2012
DOI: 10.17077/etd.lipvolfu
Abstract
<p>Four studies describe the pointing performance of individuals with fine motor skills impairments. First, we describe the pointing performance of two individuals with Parkinsons disease via a sub-movement analysis and compare them with similar results found in the literature from young children and older able-bodied adults. The analysis suggests the need of an individual assessment of pointing difficulties and the personalization of the methods of assistance and motivates sub-sequent studies. Two experiments followed where we tested <em>PointAssist</em>, software that assists in pointing tasks by detecting difficulty through a sub-movement analysis and triggering help, with adjustments proposed to personalize the assistance provided. A within-subjects study with sixteen individuals with fine motor skills impairments resulted in statistically significant effects on accuracy using Friedman's test with (χχ/sup>(1) = 6.4, p = .011) in favor of personalized <em>PointAssist</em>. A five week longitudinal study with three participants with Cerebral Palsy and other fine motor skills impairments shows the long term effects of <em>PointAssist</em>. The longitudinal study logged real-world use of pointing devices validating the results for real-world interactions. <em>PointAssist</em> had statistically significant effect of reduced sub-movement length and speed with p < .00001 and p < .0002 respectively for one of the participants. These results suggest better motor control near a target and statistically significant results on the sub-movement duration confirmed this. Finally, we designed, developed and tested a new assistive technology for individuals with severe motor skills impairments that we call the Reverse Funnel. Three participants, two with Cerebral Palsy and one with an undisclosed disability, participated and positive early results are presented as well as future developments of the newly developed strategy.</p>
Details
- Title: Subtitle
- Assistive strategies for people with fine motor skills impairments based on an analysis of sub-movements
- Creators
- Guarionex Jordan Salivia - University of Iowa
- Contributors
- Juan Pablo Hourcade (Advisor)Alberto Segre (Committee Member)Aaron Stump (Committee Member)Steve Bruell (Committee Member)Larissa Samuelson (Committee Member)
- Resource Type
- Dissertation
- Degree Awarded
- Doctor of Philosophy (PhD), University of Iowa
- Degree in
- Computer Science
- Date degree season
- Summer 2012
- Publisher
- University of Iowa
- DOI
- 10.17077/etd.lipvolfu
- Number of pages
- xxii, 203 pages
- Copyright
- Copyright © 2012 Guarionex Jordan Salivia
- Comment
This thesis has been optimized for improved web viewing. If you require the original version, contact the University Archives at the University of Iowa: https://www.lib.uiowa.edu/sc/contact/.
- Language
- English
- Description illustrations
- col. illustrations, charts
- Description bibliographic
- Includes bibliographical references (pages 198-203).
- Academic Unit
- Computer Science
- Record Identifier
- 9983777101702771
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