Comparison Of Five Levels Of Motion Sickness Severity As The Basis For Grading Susceptibility


Comparison Of Five Levels Of Motion Sickness Severity As The Basis For Grading Susceptibility
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Comparison Of Five Levels Of Motion Sickness Severity As The Basis For Grading Susceptibility


Comparison Of Five Levels Of Motion Sickness Severity As The Basis For Grading Susceptibility
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Author : Earl F. Miller (II)
language : en
Publisher:
Release Date : 1970

Comparison Of Five Levels Of Motion Sickness Severity As The Basis For Grading Susceptibility written by Earl F. Miller (II) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Coriolis force categories.


The Coriolis (motion) sickness susceptibility index (CSSI) of 275 healthy male subjects was calculated from data obtained by a standardized laboratory procedure at each of five specific levels of motion sickness severity, viz, frank sickness (FS), severe malaise (M III), moderate malaise (M IIA and M IIB), and mild malaise (M I). The stressor value (E factor) of a single standardized head movement associated with each rotational rate of the test chair was adjusted to yield an equivalent CSSI score independent of the endpoint selected. Close agreement among the CSSI scores obtained at each endpoint was found in intercorrelations, test-retest reliability coefficients (N = 30), and frequency distributions that reflected the orderliness and stability in the appearance, ramification, and intensification of the acute symptomatology evoked in progressing from M I to FS. The endpoint M IIA appeared, however, to yield the best balance between subject acceptability and test confidence, and was used without exception to calibrate the motion sickness susceptibility of 250 additional subjects. (Author).



Altered Susceptibility To Motion Sickness As A Function Of Subgravity Level


Altered Susceptibility To Motion Sickness As A Function Of Subgravity Level
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Author : Earl F. Miller II
language : en
Publisher:
Release Date : 1971

Altered Susceptibility To Motion Sickness As A Function Of Subgravity Level written by Earl F. Miller II and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Motion sickness categories.




Susceptibility To Acute Motion Sickness In Blind Persons


Susceptibility To Acute Motion Sickness In Blind Persons
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Author : Ashton Graybiel
language : en
Publisher:
Release Date : 1970

Susceptibility To Acute Motion Sickness In Blind Persons written by Ashton Graybiel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Acceleration (Physiology) categories.


A group of twelve persons selected only on the basis of their visual defects were exposed to stressful Coriolis accelerations under standardized conditions. All demonstrated differences in susceptibility to acute motion sickness that bore no relation to their rank order of visual deprivation. Insofar as comparison with a group of normal subjects was made possible, no significant differences in susceptibility were demonstrable. It was concluded that vision is not an essential but rather a secondary etiologic factor in the genesis of motion sickness. This is not incompatible with the fact that symptoms characteristic of motion sickness may be visually induced in the absence of 'motion.' (Author).



Symposium On The Role Of The Vestibular Organs In Space Exploration


Symposium On The Role Of The Vestibular Organs In Space Exploration
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Author :
language : en
Publisher: National Academies
Release Date : 1970

Symposium On The Role Of The Vestibular Organs In Space Exploration written by and has been published by National Academies this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Labyrinth (Ear) categories.




Nausea And Vomiting


Nausea And Vomiting
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Author : John Kucharczyk
language : en
Publisher: CRC Press
Release Date : 1991-10-29

Nausea And Vomiting written by John Kucharczyk and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991-10-29 with Medical categories.


This volume combines incisive state-of-the-art research regarding nausea and vomiting with articles summarizing current medical knowledge of clinical problems associated with these symptoms. Topics include the historical perspective on research on nausea and emesis, clinical assessments of current and proposed anti-emetic drug therapy, and motion sickness and space sickness. The book features over 30 tables and 6 figures to help simplify the information presented. Nausea and Vomiting: Recent Research and Clinical Advances will interest all scientists who conduct research on how the brain and gastrointestinal system interact in the control of emesis. It will also contain valuable information for clinicians, researchers involved in anti-emetic drug development, and pharmaceutical companies.



Contemporary Ergonomics


Contemporary Ergonomics
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Author : E. J. Lovesay
language : en
Publisher: CRC Press
Release Date : 1992-03-25

Contemporary Ergonomics written by E. J. Lovesay and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992-03-25 with Technology & Engineering categories.


This book is based on the proceedings of the Ergonomics Society's 1992 Annual Conference Birmingham, England, 7-10 April 1992. It contains papers, covering environmental studies, musculoskeletal studies, working postures and anthropometry, safety, and military ergonomics.



Contemporary Ergonomics 1984 2008


Contemporary Ergonomics 1984 2008
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Author : Philip D. Bust
language : en
Publisher: Taylor & Francis
Release Date : 2009-04-15

Contemporary Ergonomics 1984 2008 written by Philip D. Bust and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-04-15 with Technology & Engineering categories.


To mark the 25th anniversary of Contemporary Ergonomics, the current and past editors have selected 4 papers from each of the years that they oversaw its publication. This collection is intended to showcase the breadth of research topics covered by the Contemporary Ergonomics series of books and to illustrate the change of focus in ergonomics resea



Motion Sickness Produced By Head Movement As A Function Of Rotational Velocity


Motion Sickness Produced By Head Movement As A Function Of Rotational Velocity
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Author : Earl F. Miller (II)
language : en
Publisher:
Release Date : 1970

Motion Sickness Produced By Head Movement As A Function Of Rotational Velocity written by Earl F. Miller (II) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Coriolis force categories.


To measure the stressor stimulus effect of rotational velocity in terms of the number of the standardized head tilt movements required to evoke a common severity level of symptoms characterizing motion sickness, sixteen young healthy subjects were rotated in a laboratory (Stille) rotational chair at various velocities within a range suitable for each subject and the limits of 1.0 to 30.0 rpm. Standardized 90 degree head movements were executed at each test velocity until the preselected and quantitatively determined motion sickness endpoint of moderate (M IIA) or severe (M III) malaise was reached. When individual ability to make head movements without evoking symptoms was exceeded, the derived average stressor effect (E factor) of each head movement varied directly and, in log-log terms, linearly with rotational velocity. These data provide the basis for grading individual susceptibility to Coriolis (motion) sickness with a single numerical score as well as define the high rate of change of Coriolis stressor effect as a function of rotational velocity, which may find practical application for specifying rotational rates of space stations. (Author).



Reports


Reports
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Author : Naval Aerospace Medical Research Laboratory
language : en
Publisher:
Release Date : 1971

Reports written by Naval Aerospace Medical Research Laboratory and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with categories.




Handbook Of Virtual Environments


Handbook Of Virtual Environments
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Author : Kelly S. Hale
language : en
Publisher: CRC Press
Release Date : 2002-01-01

Handbook Of Virtual Environments written by Kelly S. Hale and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-01-01 with Technology & Engineering categories.


This Handbook, with contributions from leading experts in the field, provides a comprehensive, state-of-the-art account of virtual environments (VE). It serves as an invaluable source of reference for practitioners, researchers, and students in this rapidly evolving discipline. It also provides practitioners with a reference source to guide their development efforts and addresses technology concerns, as well as the social and business implications with which those associated with the technology are likely to grapple. While each chapter has a strong theoretical foundation, practical implications are derived and illustrated via the many tables and figures presented throughout the book. The Handbook presents a systematic and extensive coverage of the primary areas of research and development within VE technology. It brings together a comprehensive set of contributed articles that address the principles required to define system requirements and design, build, evaluate, implement, and manage the effective use of VE applications. The contributors provide critical insights and principles associated with their given area of expertise to provide extensive scope and detail on VE technology. After providing an introduction to VE technology, the Handbook organizes the body of knowledge into five main parts: *System Requirements--specifies multimodal system requirements, including physiological characteristics that affect VE system design. *Design Approaches and Implementation Strategies--addresses cognitive design strategies; identifies perceptual illusions that can be leveraged in VE design; discusses navigational issues, such as becoming lost within a virtual world; and provides insights into structured approaches to content design. *Health and Safety Issues--covers direct physiological effects, signs, symptoms, neurophysiology and physiological correlates of motion sickness, perceptual and perceptual-motor adaptation, and social concerns. *Evaluation--addresses VE usability engineering and ergonomics, human performance measurement in VEs, usage protocols; and provides means of measuring and managing visual, proprioceptive, and vestibular aftereffects, as well as measuring and engendering sense of presence. *Selected Applications of Virtual Environments--provides a compendium of VE applications. The Handbook closes with a brief review of the history of VE technology. The final chapter provides information on the VE profession, providing those interested with a number of sources to further their quest for the keys to developing the ultimate virtual world.