abstract: We experience spatial separation and temporal asynchrony between visual and
haptic information in many virtual-reality, augmented-reality, or teleoperation systems.
Three studies were conducted to examine the spatial and temporal characteristic of
multisensory integration. Participants interacted with virtual springs using both visual and
haptic senses, and their perception of stiffness and ability to differentiate stiffness were
measured. The results revealed that a constant visual delay increased the perceived stiffness,
while a variable visual delay made participants depend more on the haptic sensations in
stiffness perception. We also found that participants judged stiffness stiffer when they
interact with virtual springs at faster speeds, and interaction speed was positively correlated
with stiffness overestimation. In addition, it has been found that participants could learn an
association between visual and haptic inputs despite the fact that they were spatially
separated, resulting in the improvement of typing performance. These results show the
limitations of Maximum-Likelihood Estimation model, suggesting that a Bayesian
inference model should be used. / Dissertation/Thesis / Doctoral Dissertation Human Systems Engineering 2017
| Identifer | oai:union.ndltd.org:asu.edu/item:45954 |
| Date | January 2017 |
| Contributors | Sim, Sung Hun (Author), Wu, Bing (Advisor), Cooke, Nancy (Committee member), Gray, Robert (Committee member), Branaghan, Russell (Committee member), Arizona State University (Publisher) |
| Source Sets | Arizona State University |
| Language | English |
| Detected Language | English |
| Type | Doctoral Dissertation |
| Format | 115 pages |
| Rights | http://rightsstatements.org/vocab/InC/1.0/, All Rights Reserved |
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