abstract: The interaction between visual fixations during planning and performance in a
dexterous task was analyzed. An eye-tracking device was affixed to subjects during
sequences of null (salient center of mass) and weighted (non salient center of mass) trials
with unconstrained precision grasp. Subjects experienced both expected and unexpected
perturbations, with the task of minimizing object roll. Unexpected perturbations were
controlled by switching weights between trials, expected perturbations were controlled by
asking subjects to rotate the object themselves. In all cases subjects were able to
minimize the roll of the object within three trials. Eye fixations were correlated with
object weight for the initial context and for known shifts in center of mass. In subsequent
trials with unexpected weight shifts, subjects appeared to scan areas of interest from both
contexts even after learning present orientation. / Dissertation/Thesis / Masters Thesis Biomedical Engineering 2017
| Identifer | oai:union.ndltd.org:asu.edu/item:45580 |
| Date | January 2017 |
| Contributors | Smith, Michael David (Author), Santello, Marco (Advisor), Buneo, Christopher (Committee member), Schaefer, Sydney (Committee member), Arizona State University (Publisher) |
| Source Sets | Arizona State University |
| Language | English |
| Detected Language | English |
| Type | Masters Thesis |
| Format | 27 pages |
| Rights | http://rightsstatements.org/vocab/InC/1.0/, All Rights Reserved |
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