Temat: motion sickness - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Mood and simulator sickness after truck simulator exposure
Autorzy:: Biernacki, Marcin
Dziuda, Łukasz
Tematy:: arousal
motion sickness
drivers
mood
simulator sickness
simulator test; Pokaż więcej
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Powiązania:: https://bibliotekanauki.pl/articles/2178837.pdf Link otwiera się w nowym oknie
Opis:: Objectives: Studies involving simulators are increasingly popular. We examined to what extent exposure to a variety of test conditions on the simulator affects the level of mood and severity of simulator sickness. In addition, we were interested in finding out to what degree the changes in mood are associated with the severity of the symptoms of simulator sickness. Material and Methods: Twelve men (aged M: 29.8, SD: 4.26) participated in the study, performing two 30-minute tasks in a driving simulator truck (fixed-base and mobile platform). For measuring mood, the UMACL questionnaire was used, and to assess the severity of the symptoms of simulator sickness, the SSQ questionnaire was used. Mood and the severity of simulator sickness symptoms were measured 3 times during the study (pretest, 2 min and 0.5 h after the test). Results: Symptoms of nausea and disorientation occurred after the tests on both simulators. In the case of the mobile platform, exacerbation of the symptoms associated with oculomotor disturbances was observed. These symptoms were particularly severe 2 min after completion of the test on the simulator, and they persisted for at least 0.5 h after the end of the test. The correlations between simulator sickness and mood explained from 35% to 65% of the variance of these variables. In particular, a strong association was observed between the oculomotor disturbances and a decrease in energetic arousal. This refers both to the effect level and the duration of these symptoms. Conclusions: Simulator sickness is a major problem in the use of simulators in both the research and the training of operators. In the conditions involving the mobile platform, not only was a higher severity of the symptoms of simulator sickness observed, but also a decrease in energetic arousal. Therefore, the implementation of the mobile platform can provide an additional source of conflict at the level of incoming stimuli and changes in mood may increase this effect. Thus, it seems important to consider the tasks performed on the simulator in the context of utility and the purpose for which we use them.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Comparing dizziness and vertigo inventory responses in Thai and Thai-Chinese people
Autorzy:: Coelho, Carlos M
Pisitsungkagarn, Kullaya
Taephant, Nattasuda
Balaban, Carey D
Tematy:: Motion sickness
Fear of heights
Vertigo syndromes
Asian populations; Pokaż więcej
Wydawca:: Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Powiązania:: https://bibliotekanauki.pl/articles/2106204.pdf Link otwiera się w nowym oknie
Opis:: It is acknowledged that ancestry may play a role in the likelihood of reporting motion sickness, based upon questionnaires in which symptoms are reported more frequently in individuals with Asian ancestry. This study compares motion sickness and related vertigo syndromes in Thai and Thai-Chinese populations. The Motion Sickness Questionnaire; Albany Panic and Phobia Questionnaire; Acrophobia Questionnaire; Body Symptoms Questionnaire and the Situational Characteristics Questionnaire were administered to 128 participants. Eighty-eight participants had a father, mother and all grandparents of Thai origin, while 44 participants had with at least one Chinese ancestor among parents or grandparents. All responses were similar between groups except regarding fear of heights, which is significantly higher in Thai participants without recent Chinese ancestors. Reported motion sickness sensitivity is similar between Thai and Chinese populations. The group differences for some fear of heights items may be linked to each group’ previous experience with heights. Results also suggest that although conquering a fear of heights might require specific visuo-vestibular adaptations, these adaptations alone may not be sufficient to lessen an individual’sfear of heights.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The prediction of the Motion Sickness Incidence index at the initial design stage
Autorzy:: Cepowski, T.
Tematy:: Motion Sickness Incidence index
design
ro-ro ferry
sea-keeping qualities; Pokaż więcej
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Powiązania:: https://bibliotekanauki.pl/articles/359763.pdf Link otwiera się w nowym oknie
Opis:: The article discusses the influence of those environmental conditions on the human being that may cause sea sickness. Different indexes describing motion sickness are presented. Besides, a mathematical inter-relation describing the effect of waves and design parameters on the motion sickness incidence index is described. The relation has been used for developing design guidelines designers may use at the initial design phase.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Heart Rate Variability and Motion Sickness During Forklift Simulator Driving
Autorzy:: Zużewicz, K.
Saulewicz, A.
Konarska, M.
Kaczorowski, Z.
Tematy:: motion sickness
heart rate variability
spectral analysis
forklift truck virtual simulator; Pokaż więcej
Wydawca:: Centralny Instytut Ochrony Pracy
Powiązania:: https://bibliotekanauki.pl/articles/90661.pdf Link otwiera się w nowym oknie
Opis:: The goal of the study was to determine the effect of a 1-h hour long forklift truck virtual simulator driving on the mechanism of autonomic heart rate (HR) regulation in operators. The participants were divided into 2 subgroups: subjects with no definite inclination to motion sickness (group A) and subjects with a definite inclination to motion sickness (group B). Holter monitoring of electrocardiogram (ECG) signal was carried out in all subjects during the virtual simulator driving. For 12 consecutive epochs of ECG signal, HR variability analysis was conducted in time and frequency domains. In subjects with a definite inclination to motion sickness after ~30 min of the driving, changes in parameter values were found indicating an increase in sympathetic and parasympathetic activity with parasympathetic dominance.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Electroencephalographic (EEG) correlates of Visually Induced Motion Sickness (VIMS) in the Virtual Reality (VR) based simulations
Autorzy:: Lipp, Natalia
Argasiński, Jan
Mazurek, Szymon
Wydawca:: Springer
Opis:: W prezentowanych badaniach zbadano możliwość wykrycia choroby lokomocyjnej wywołanej wzrokowo (VIMS) w symulacjach w rzeczywistości wirtualnej (VR) z wykorzystaniem zapisów elektroencefalograficznych (EEG). 31 dorosłych uczestników zostało przebadanych za pomocą VR i EEG zarówno w warunkach VIMS, jak i innych. Wykazano korelację między sygnałami EEG a wynikami kwestionariusza choroby symulacyjnej (SSQ), co wskazuje, że VIMS można wykryć na podstawie zapisów EEG.
In the presented study, the possibility of detecting Visually Induced Motion Sickness (VIMS) in Virtual Reality (VR) simulations using electroencephalographic (EEG) recordings was investigated. 31 adult participants were tested with VR and EEG in both VIMS and non-VIMS conditions. A correlation between EEG signals and the Simulation Sickness Questionnaire (SSQ) scores was shown, indicating that VIMS can be detected through EEG recordings.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Inne

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Skocz do pozycji: 6.

Tytuł:: Influence analysis of changes of design parameters of passenger-car ferries on their selected sea-keeping qualities
Autorzy:: Cepowski, T.
Tematy:: passenger-car ferry
design guidelines
preliminary design stage
sea-keeping qualities
rolling
sea-sickness (motion-sickness) index
vertical accelerations
ateral accelerations
ship main dimensions; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/259447.pdf Link otwiera się w nowym oknie
Opis:: The main scientific aim of this research was to elaborate design guidelines which could make it possible to improve sea-keeping qualities of passenger-car ferries. The searchedfor design guidelines were prepared in the form of regression functions as well as artificial neural networks on the basis of the results obtained from calculations with the use of numerical methods based on the theory of planar flow around a body. The guidelines make it possible to predict ship roll, sea-sickness index, lateral and vertical accelerations on the basis of quantities available in the preliminary stage of ship design.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The assessment of the impact of a training process on the habituation of the vestibular-vegetative system, using a special rotational test as a condition of maintaining flight safety
Autorzy:: Wochyński, Zbigniew
Krawczyk, Piotr
Cur, Krzysztof
Tematy:: space motion sickness
special aviation gymnastic instruments
test on the unlocked looping
vestibular-vegetative system
training process
Coriolis effect; Pokaż więcej
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Powiązania:: https://bibliotekanauki.pl/articles/2116592.pdf Link otwiera się w nowym oknie
Opis:: ObjectivesThe authors formulated a hypothesis that, on completion of the training program by cadets, their vestibular habituation would increase, measured by the time of the duration of the test on the unlocked looping, in contrast to the initial values and the control group.Material and MethodsThe research involved 35 male cadets, first-year students of the Polish Air Force Academy in Dęblin. The examined persons were on average 20 years of age. They were divided into 2 groups. Group A (N = 25, tested) continued training on Special Aviation Gymnastic Instruments (SAGI). The cadets were a homogeneous group of participants in the jet pilot course, selected by the Military Aeromedical Board. Group B (N = 10, control) conducted the standard physical military education program. Groups A and B were tested on the unlocked looping before and after the training process. In the training process, the groups had heart rate (HR) monitored.ResultsThe cadets in group A on the test in the unlocked looping, at the beginning of the training period, had an average score of 468.5±96.6 s, and on completion of the training period 575.6±47.9 s, which is a statistically significant difference at p < 0.000001. Similarly, the examined individuals in group B received an average score of 396.2±31.8 s, and at the end of the training period 473.4±72.0 s, which is a statistically significant difference at p < 0.01. In group A, a statistically significant decrease in the average HR value was observed. In group B, there was a statistically significant increase in the average HR value.ConclusionsThe exercises on SAGI have a beneficial impact on improving the habituation of the vestibular organ in training cadets in examination II, as opposed to examination I and the control group.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: On the modeling of car passenger ferryship design parameters with respect to selected sea-keeping qualities and additional resistance in waves
Autorzy:: Cepowski, T.
Tematy:: sea-keeping qualities
roll-on/roll-off ferryship
rolling
motion sickness index
lateral accelerations
additional resistance in waves
ship design parameters
modeling
artificial neural networks
optimization
Pareto method; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/258828.pdf Link otwiera się w nowym oknie
Opis:: This paper presents the modeling of car passenger ferryship design parameters with respect to such design criteria as selected sea-keeping qualities and additional resistance in waves. In the first part of the investigations approximations of selected statistical parameters of design criteria of ferryship were elaborated with respect to ship design parameters. The approximation functions were obtained with the use of artificial neural networks. In the second part of the investigations design solutions were searched for by applying the singleand multi-criterial optimization methods. The multi-criterial optimization was performed by using Pareto method. Such approach made it possible to present solutions in such form as to allow decision makers (shipowner, designer) to select solutions the most favourable in each individual case.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Determination of optimum hull form for passenger car ferry with regard to its sea-keeping qualities and additional resistance in waves
Autorzy:: Cepowski, T.
Tematy:: sea-keeping qualities
roll-on/roll-off ferry ship
rolling
transverse accelerations
vertical accelerations
motion sickness index
additional resistance in waves
ship hull form
ship design parameters
artificial neural networks
fuzzy logic; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/258898.pdf Link otwiera się w nowym oknie
Opis:: This paper presents a method which makes it possible to determine optimum hull form of passenger car ferry with regard to selected sea-keeping qualities and additional resistance in waves. In the first phase of investigations a hull form characterized by the highest qualities was selected from the list of similar ships. Next, its optimum dimension ratios were determined. Design criteria were formulated by using a method based on deterministic scenarios, but objective functions of partial targets were determined in the form of artificial neural networks. To select the best design variants elements of fuzzy logic were used, that made it possible a.o. to show merits of the design by means of linguistic variables. Such approach made it possible to find the best hull form and its dimensions from the point of view of all considered criteria simultaneously.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Wykorzystanie wirtualnej rzeczywistości w szkoleniu strażaków : szanse i zagrożenia
Using virtual reality in firefighter training : opportunities and threats
Autorzy:: Luzar, Artur
Kosowski, Bogdan
Opis:: W artykule przedstawiono możliwość wykorzystania technologii wirtualnej rzeczywistości jako elementu wspomagającego realizację doskonalenia zawodowego strażaków oraz innych osób związanych z zapewnieniem bezpiecznych warunków przeciwpożarowych w budynkach i obiektach. Autorzy przedstawili definicje i rodzaje wirtualnej rzeczywistości, a także zaprezentowali rozwój tej technologii począwszy od lat siedemdziesiątych ubiegłego wieku aż do współczesności. Zostały przedstawione zalety, szanse, zagrożenia i ograniczenia wykorzystania tego typu narzędzi w procesie dydaktycznym. W artykule przedstawiono także środowisko wirtualne służące doskonaleniu podejmowania decyzji w przypadku działań gaśniczych na obiektach zabytkowych.
The article presents the possibility of using virtual reality technology as an element supporting the implementation of professional development of firefighters and others associated with the provision of safe fire conditions in buildings and facilities. The authors presented definitions and types of virtual reality, as well as presented the development of this technology from the 1970s to the present. The advantages, opportunities, risks and limitations of using such tools in the teaching process were presented. The article also presents a virtual environment for improving decision-making in the case of firefighting operations on historic sites.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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