Motion Sickness and Mitigation Strategies

Motion sickness shouldn’t be treated as an illness, but instead a natural autonomic reaction to an unfamiliar or certain stimulus. The bodily responses to motion sickness are contextually dependent, which makes them challenging to forecast. The initial autonomic responses are identical to the types shown when under stress. A person influenced by motion sickness has limited capability to perform tasks or duties. Having said that, little is known about how certain cognitive functions suffer. In addition, typical mitigation techniques include medications which cause fatigue or techniques which need cognitive capabilities. They both may lead to decreased capacity to carry out designated jobs or responsibilities. Therefore, we have a requirement of alternative mitigation strategies. The objective of the thesis was to research psychophysiological and performance aspects on motion sickness. The objective is to offer methods for minimization and protection against motion sickness by figuring out psychophysiological responses as predictors for both wellbeing and performance. This thesis consists of 4 studies, wherein Ninety one individuals were exposed to 2 distinct motion sickness stimuli, either an optokinetic drum or a motion platform. Prior to the tests, a technique for extracting fixations from eye-tracking data was created as a requirement for researching fixations just as one mitigation strategy for lowering motion sickness. During the course of exposure to stimuli which sparks motion sickness, overall performance was analyzed by testing short-term memory and encoding and retrieval. During the last study, the impact of an artificial sound horizon was analyzed when it comes to its potential to subconsciously work as a mitigating source. The outcomes of the measurements of the psychophysiological responses were in line with earlier research, validating the vagueness and high individuality of the responses in addition to their contextual dependencies.

Video:  Motion Sickness – What is it?


3 Introduction
3.1 Thesis outline
3.2 Motion sickness
3.2.1 The magnitude of occurrence
3.3 The sensory conflict theory and related theories
3.4 International Classification of Functioning, Disability and Health (ICF)
3.5 Cardinal signs and symptoms
3.5.1 Psychophysiology of motion sickness
3.6 Subjective measurements of motion sickness
3.7 Motion sickness and performance
3.8 Motion sickness and personal factors
3.8.1 Adaptation
3.9 Thesis rationale
4 Thesis purpose
4.1 Study I
4.2 Study II
4.3 Study III
4.4 Study IV
5 Material and methods
5.1 Study I
5.1.1 Design
5.1.2 Participants
5.1.3 Measurements and procedures
5.1.4 Statistical analyses
5.1.5 Ethical considerations
5.2 Study II
5.2.1 Design
5.2.2 Participants
5.2.3 Measurements
5.2.4 Procedures
5.2.5 Statistical analyses
5.2.6 Ethical considerations
5.3 Study III
5.3.1 Design
5.3.2 Participants
5.3.3 Measurements
5.3.4 Procedures
5.3.5 Statistical analyses
5.3.6 Ethical considerations
5.4 Study IV
5.4.1 Design
5.4.2 Participants
5.4.3 Measurements
45.4.4 Procedures
5.4.5 Statistical analyses
5.4.6 Ethical considerations
6 Results
6.1 Study I
6.2 Study II
6.3 Study III
6.4 Study IV
7 Discussion
7.1 Result discussion
7.1.1 Psychophysiology
7.1.2 Perceived motion sickness
7.1.3 Performance
7.1.4 Mitigation strategies
7.2 Methodological discussion
7.2.1 Psychophysiology
7.2.2 Perceived motion sickness
7.2.3 Performance
7.2.4 Mitigation strategies………..

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Source: Linköping University

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