Accepted for/Published in: JMIR Research Protocols
Date Submitted: Oct 26, 2019
Date Accepted: May 19, 2020
Visual Fixations and Motion Sensitivity: An exploratory study
ABSTRACT
Background:
Motion sensitivity after vestibular disorders is associated with symptoms of nausea, dizziness, and imbalance in busy environments. Dizziness and imbalance is reported in places such as supermarkets and shopping malls which have unstable visual backgrounds; however, the mechanism of motion sensitivity is poorly understood.
Objective:
The main aim of this exploratory observational study is to investigate visual fixations and postural sway in response to increasingly complex visual environments in healthy adults and adults with motion sensitivity.
Methods:
Twenty healthy adults and 20 adults with motion sensitivity will be recruited for this study. Visual fixation, postural sway, and body kinematics will be measured with a mobile eye tracker device, force plate, and 3d motion capture system, respectively. Participants will be exposed to experimental tasks requiring visual fixation on letters, projected on a range of backgrounds on a large screen during quiet stance.
Results:
Descriptive statistics (mean and standard deviation) will be calculated for each of the variables. One-way independent-measures analyses of variance (ANOVAs) will be performed to investigate the differences between groups for all variables.
Conclusions:
This study will provide a detailed investigation of visual fixations in response to increasingly complex visual environments. Investigating characteristics of visual fixations in healthy adults and those with motion sensitivity will provide insight into this disabling condition and may inform the development of new interventions strategies which explicitly cater to the needs of this population. Clinical Trial: Australian New Zealand Clinical Trials Registry, ACTRN12619000254190, February 2019
Citation
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Copyright
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