Visual Performance As A Function Of Low Photopic Brightness Levels
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Visual Performance As A Function Of Low Photopic Brightness Levels
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Author : Milton L. Rock
language : en
Publisher:
Release Date : 1950
Visual Performance As A Function Of Low Photopic Brightness Levels written by Milton L. Rock and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1950 with Aviation medicine categories.
Visual Performance As A Function Of The Brightness Of An Immediately Preceding Visual Task
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Author : Sidney Durward Shirley Spragg
language : en
Publisher:
Release Date : 1953
Visual Performance As A Function Of The Brightness Of An Immediately Preceding Visual Task written by Sidney Durward Shirley Spragg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1953 with Aeronautical instruments categories.
This study, part of a project on human factors in aircraft instrument lighting, has undertaken to determine how visual performance at low photopic brightness levels is affected by the brightness of an immediately preceding visual task. Two visual tasks were employed. In one, called the near task, subjects were required to read banks of photographic reproductions of instrument dials under instructions stressing speed and accuracy. The viewing distance was 28 inches, and three task brightnesses were employed: 2.9, 0.083, and 0.005 foot-lamberts. In the other, called the far task, subjects "read" banks of Landolt rings with speed and accuracy instructions. These were viewed periscopically at a distance of 18 feet, and five task brightnesses were used: 6.0, 0.076, 0.01, 0.007, and 0.0035 foot-lamberts. Subjects were high school and college students with excellent visual abilities. In Experiment I, subject (N=15) were visually adapted to the brightness level of the near task, performed the near task, then immediately were given the far task. All combinations of near and far brightnesses were used in a balanced experimental design. Experiment II was similar in all respects except that the subjects (N=12) first performed the far task then the near task. A third experiment was also carried out as a corroborative check on Experiment II.
An Investigation Of Visual Performance As A Function Of Low Photopic Brightness Levels
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Author : Milton L. Rock
language : en
Publisher:
Release Date : 1949
An Investigation Of Visual Performance As A Function Of Low Photopic Brightness Levels written by Milton L. Rock and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1949 with Vision categories.
Technical Report
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Author : Human Resources Research Organization
language : en
Publisher:
Release Date : 1968
Technical Report written by Human Resources Research Organization and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.
Emergent Techniques For Assessment Of Visual Performance
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 1985-01-01
Emergent Techniques For Assessment Of Visual Performance written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985-01-01 with Medical categories.
Recent vision research has led to the emergence of new techniques that offer exciting potential for a more complete assessment of vision in clinical, industrial, and military settings. Emergent Techniques for Assessment of Visual Performance examines four areas of vision testing that offer potential for improved assessment of visual capability including: contrast sensitivity function, dark-focus of accommodation, dynamic visual acuity and dynamic depth tracking, and ambient and focal vision. In contrast to studies of accepted practices, this report focuses on emerging techniques that could help determine whether people have the vision necessary to do their jobs. In addition to examining some of these emerging techniques, the report identifies their usefulness in predicting performance on other visual and visual-motor tasks, and makes recommendations for future research. Emergent Techniques for Assessment of Visual Performance provides summary recommendations for research that will have significant value and policy implications for the next 5 to 10 years. The content and conclusions of this report can serve as a useful resource for those responsible for screening industrial and military visual function.
Visual Performance As A Function Of Low Photopic Brightness Levels
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Author :
language : en
Publisher:
Release Date : 1950
Visual Performance As A Function Of Low Photopic Brightness Levels written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1950 with categories.
Technical Report
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Author : Human Resources Research Organization
language : en
Publisher:
Release Date : 1968
Technical Report written by Human Resources Research Organization and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Human engineering categories.
Human Engineering Guide For Equipment Designers
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Author :
language : en
Publisher: Univ of California Press
Release Date :
Human Engineering Guide For Equipment Designers written by and has been published by Univ of California Press this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
A Bibliography Of Reports Issued By The Behavioral Sciences Laboratory
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Author : Aerospace Medical Research Laboratories (U.S.). Behavioral Sciences Laboratory
language : en
Publisher:
Release Date : 1946
A Bibliography Of Reports Issued By The Behavioral Sciences Laboratory written by Aerospace Medical Research Laboratories (U.S.). Behavioral Sciences Laboratory and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1946 with Aviation medicine categories.
Reports Of Research In The Field Of Engineering Psychology
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Author : Jennie Gatti
language : en
Publisher:
Release Date : 1956
Reports Of Research In The Field Of Engineering Psychology written by Jennie Gatti and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1956 with Bibliographies categories.