scholarly journals Visual Influence in Dynamic Motion Environments: Postural Stability and Motion Sickness

2004 ◽  
Vol 4 (8) ◽  
pp. 800-800
Author(s):  
M. B. Flanagan ◽  
J. G. May ◽  
T. G. Dobie
Keyword(s):  
Motion Sickness ◽  
Postural Stability ◽  
Dynamic Motion ◽  
Visual Influence

Stance Width Influences Postural Stability and Motion Sickness

2010 ◽  
Vol 22 (3) ◽  
pp. 169-191 ◽  
Author(s):  
Thomas A. Stoffregen ◽  
Ken Yoshida ◽  
Sebastien Villard ◽  
Lesley Scibora ◽  
Benoît G. Bardy
Keyword(s):  
Motion Sickness ◽  
Postural Stability

scholarly journals The effects of visual information on postural stability in dynamic motion environments

2010 ◽  
Vol 3 (9) ◽  
pp. 547-547
Author(s):  
M. B. Flanagan ◽  
J. G. May ◽  
T. G. Dobie
Keyword(s):  
Visual Information ◽  
Postural Stability ◽  
Dynamic Motion

Nuancing the relationship between motion sickness and postural stability

Displays ◽  
2011 ◽  
Vol 32 (4) ◽  
pp. 189-193 ◽  
Author(s):  
Jelte E. Bos
Keyword(s):  
Motion Sickness ◽  
Postural Stability ◽  
The Relationship

scholarly journals Idiosyncratic multisensory reweighting as the common cause for motion sickness susceptibility and adaptation to postural perturbation

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0260863
Author(s):  
Merrick Dida ◽  
Corinne Cian ◽  
Pierre-Alain Barraud ◽  
Michel Guerraz ◽  
Rafael Laboissière
Keyword(s):  
Postural Control ◽  
Motion Sickness ◽  
Postural Stability ◽  
Center Of Pressure ◽  
Sensory Information ◽  
Principal Component ◽  
Postural Perturbation ◽  
Baseline Phase ◽  
Low Frequencies ◽  
Eyes Closed

Numerous empirical and modeling studies have been done to find a relationship between postural stability and the susceptibility to motion sickness (MS). However, while the demonstration of a causal relationship between postural stability and the susceptibility to MS is still lacking, recent studies suggest that motion sick individuals have genuine deficits in selecting and reweighting multimodal sensory information. Here we investigate how the adaptation to changing postural situations develops and how the dynamics in multisensory integration is modulated on an individual basis along with MS susceptibility. We used a postural task in which participants stood on a posturographic platform with either eyes open (EO) or eyes closed (EC) during three minutes. The platform was static during the first minute (baseline phase), oscillated harmonically during the second minute (perturbation phase) and returned to its steady state for the third minute (return phase). Principal component (PC) analysis was applied to the sequence of short-term power density spectra of the antero-posterior position of the center of pressure. Results showed that the less motion-sick a participant is, the more similar is his balance between high and low frequencies for EO and EC conditions (as calculated from the eigenvector of the first PC). By fitting exponential decay models to the first PC score in the return phase, we estimated, for each participant in each condition, the sluggishness to return to the baseline spectrum. We showed that the de-adaptation following platform oscillation depends on the susceptibility to MS. These results suggest that non motion-sick participants finely adjust their spectrum in the perturbation phase (i.e. reweighting) and therefore take longer to return to their initial postural control particularly with eyes closed. Thus, people have idiosyncratic ways of doing sensory reweighting for postural control, these processes being tied to MS susceptibility.

The role of age and postural stability for visually induced motion sickness in a simulated driving task

2015 ◽  
Vol 59 (1) ◽  
pp. 770-770 ◽  
Author(s):  
Behrang Keshavarz ◽  
Alison C. Novak ◽  
Lawrence J. Hettinger ◽  
Thomas A. Stoffregen ◽  
Jennifer L. Campos
Keyword(s):  
Motion Sickness ◽  
Postural Stability ◽  
Visually Induced Motion Sickness ◽  
Simulated Driving ◽  
Induced Motion ◽  
Driving Task ◽  
Simulated Driving Task

scholarly journals VISUAL-VESTIBULAR AND POSTURAL ANALYSIS OF MOTION SICKNESS, PANIC, AND ACROPHOBIA

2017 ◽  
Vol 15 (1) ◽  
pp. 21-33
Author(s):  
Carlos M. Coelho ◽  
Janete Silva ◽  
Alfredo F. Pereira ◽  
Emanuel Sousa ◽  
Nattasuda Taephant ◽  
...  
Keyword(s):  
Anxiety Disorders ◽  
Motion Sickness ◽  
Undergraduate Students ◽  
Postural Stability ◽  
Self Report ◽  
Romberg Test ◽  
Challenging Situation ◽  
Rod And Frame Test ◽  
Rod And Frame ◽  
Fear Of Heights

Background: Visual-vestibular and postural interactions can act as cues that trigger motion sickness and can also have a role in some anxiety disorders. We explore a method to detect individual sensitivity to visual-vestibular unusual patterns, which can signal a vulnerability to develop motion sickness and possibly anxiety disorders such as a fear of heights and panic. Material/Methods: 65 undergraduate students were recruited for the purposes of this study as voluntary participants (44 females); average age 21.65 years (SD=2.84) with normal or corrected to normal vision, without vestibular or postural deficiencies. Panic was assessed with the Albany Panic and Phobia Questionnaire, Motion Sickness with the Motion Sickness Susceptibility Questionnaire and Acrophobia was assessed by means of the Acrophobia Questionnaire. The Sharpened Romberg Test was used to test participant’s postural balance. The Rod and Frame Test (RFT) measures the participant’s ability to align a rod to the vertical within a titled frame providing a measure of error in the perception of verticality by degrees. This test was changed to measure the error offered when a participant’s head was tilted, and to trace the error caused by manipulating the vestibular system input. Results: The main findings show only motion sickness to be correlated with significant errors while performing a visual-vestibular challenging situation, and fear of heights is the only anxiety disorder connected with postural stability, although all disorders (fear of heights, panic and motion sickness) are correlated between each other in the self-report questionnaires. Conclusions: All disorders are correlated to each other in the surveys, and might have some common visual-vestibular origin, in theory. The rod and frame test was exclusively correlated with motion sickness whereas the postural stability test only displayed sensibility to acrophobia. Panic disorder was correlated to neither the RFT nor the Romberg. Although this method was initially employed to increase sensibility in order to detect anxiety disorders, it ended up showing its value in the detection of motion sickness.

Vestibular Function and Motion Sickness Susceptibility: Videonystagmographic Evidence From Oculomotor and Caloric Tests

2020 ◽  
Vol 29 (2) ◽  
pp. 188-198
Author(s):  
Cynthia G. Fowler ◽  
Margaret Dallapiazza ◽  
Kathleen Talbot Hadsell
Keyword(s):  
Phase Velocity ◽  
Motion Sickness ◽  
Repeated Measures ◽  
Short Form ◽  
Vestibular Function ◽  
Slow Phase ◽  
Test Results ◽  
Normal Range ◽  
Slow Phase Velocity ◽  
Caloric Tests

Purpose Motion sickness (MS) is a common condition that affects millions of individuals. Although the condition is common and can be debilitating, little research has focused on the vestibular function associated with susceptibility to MS. One causal theory of MS is an asymmetry of vestibular function within or between ears. The purposes of this study, therefore, were (a) to determine if the vestibular system (oculomotor and caloric tests) in videonystagmography (VNG) is associated with susceptibility to MS and (b) to determine if these tests support the theory of an asymmetry between ears associated with MS susceptibility. Method VNG was used to measure oculomotor and caloric responses. Fifty young adults were recruited; 50 completed the oculomotor tests, and 31 completed the four caloric irrigations. MS susceptibility was evaluated with the Motion Sickness Susceptibility Questionnaire–Short Form; in this study, percent susceptibility ranged from 0% to 100% in the participants. Participants were divided into three susceptibility groups (Low, Mid, and High). Repeated-measures analyses of variance and pairwise comparisons determined significance among the groups on the VNG test results. Results Oculomotor test results revealed no significant differences among the MS susceptibility groups. Caloric stimuli elicited responses that were correlated positively with susceptibility to MS. Slow-phase velocity was slowest in the Low MS group compared to the Mid and High groups. There was no significant asymmetry between ears in any of the groups. Conclusions MS susceptibility was significantly and positively correlated with caloric slow-phase velocity. Although asymmetries between ears are purported to be associated with MS, asymmetries were not evident. Susceptibility to MS may contribute to interindividual variability of caloric responses within the normal range.

Tai Chi Enhances Postural Stability in Parkinson's Disease

2012 ◽  
Vol 45 (4) ◽  
pp. 19
Author(s):  
MARY ANN MOON
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Postural Stability ◽  
Tai Chi
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