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| Author | : Keith Stoll Karn |
| Publisher | : |
| Total Pages | : 266 |
| Release | : 1984 |
| Genre | : |
| ISBN | : |
| Author | : Venki Narayan |
| Publisher | : |
| Total Pages | : 424 |
| Release | : 1984 |
| Genre | : |
| ISBN | : |
| Author | : James Deese |
| Publisher | : |
| Total Pages | : 30 |
| Release | : 1957 |
| Genre | : Psychophysiology |
| ISBN | : |
"This report critically reviews some of the experimental and field studies on the effects of prolonged visual work. It is pointed out in the report that there are two basically different kinds of visual work, one primarily involving search for infrequently occurring signals (vigilance tasks) and the other involving active continuous use of the oculomotor system and requiring more or less continuous mental operation (active tasks). The effects of work at these two types of tasks on the capacity for further visual work are different. Even relatively brief periods of time spent at visual vigilance results in a reduction in visual sensitivity. Relatively long periods of time at active tasks produce either no deterioration or very little deterioration in the capacity for further visual work unless the situation is complicated by extreme loss of sleep, anoxemia or presence of drug effects. Continuous work at active visual tasks, however, does produce depression, headaches, feelings of tiredness and irritability. Any attempt at reducing fatigue in active visual tasks should be directed towards these factors."--Abstract.
| Author | : National Research Council |
| Publisher | : National Academies Press |
| Total Pages | : 288 |
| Release | : 1983-02-01 |
| Genre | : Medical |
| ISBN | : 0309033888 |
Along with the widespread use of computers have come growing fears that working in front of video display terminals (VDTs) can irritate and even damage the eyes. Separating scientific fact from popular opinion, this report takes a critical look at the link between VDT use and eye discomfort and disease as well as at changes in visual performance and oculomotor function. Drawing on information from ergonomics, illuminating engineering, and industrial and organizational psychology, the report gives practical advice on optimal workstation design to improve the comfort, performance, and job satisfaction of VDT users.
| Author | : Robert Mosher (Graduate student) |
| Publisher | : |
| Total Pages | : 19 |
| Release | : 2021 |
| Genre | : |
| ISBN | : |
Stereoscopic displays used in current immersive virtual reality (VR) platforms impose unique demands on visual systems that are rarely encountered in natural circumstances. Under normal viewing conditions the visual systems responsible for adjusting focal power and maintaining binocular alignment operate in parallel; however, focal and binocular depth cues experienced in VR are uncoupled due to the fixed focal distance of the display. Subsequently, the accommodative system, which adapts the lens of the eye to meet focal demands, receives static depth feedback, while the vergence system receives continuous binocular cues at varying depths that are frequently incongruent with the display's focal distance. As these conflicting cues have been found to be associated with subjective reports of visual discomfort, we assessed changes in oculomotor function after VR exposure to better understand the underlying processes that may be driving this symptomology. After 30 minutes in immersive VR, participants showed significantly decreased ability to maintain focus on a fixed target over a 2-minute duration using an open field autorefractor when compared to baseline measures.
| Author | : Reidulf G. Watten |
| Publisher | : |
| Total Pages | : 328 |
| Release | : 1994 |
| Genre | : |
| ISBN | : |
| Author | : Wade H. Shafer |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 407 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 1468451979 |
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 29 (thesis year 1984) a total of 12,637 theses titles from 23 Canadian and 202 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 29 reports theses submitted in 1984, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
| Author | : Wolfgang Becker |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 459 |
| Release | : 2013-11-09 |
| Genre | : Medical |
| ISBN | : 1475730543 |
This volume contains the proceedings of the Ninth European Conference on Eye Movements (ECEM 9), held in Ulm, Germany, on September 23-26, 1997. ECEM 9 con tinued a series of conferences initiated by Rudolf Groner of Bern, Switzerland, in 1981 which, from its very beginning, has brought together scientists from very diverse fields with a common interest in eye movements. About 40 of the papers presented at ECEM 9 have been selected for presentation in full length while others are rendered in condensed form. There is a broad spectrum of motives why people have become involved in, and fas cinated by, eye movement research. Neuroscientists have been allured by the prospect of understanding anatomical findings, single unit recordings, and the sequels of experimental lesions in terms of the clearly defined system requirements and the well documented be havioural repertoire of the oculomotor system. Others have been attracted by the richness of this repertoire and its dependence on an intricate hierarchy of factors spanning from "simple" reflexes to visual pattern recognition and spatio-temporal prediction. Neurolo gists, neuro-ophthalmologists and neuro-otologists have long standing experience with eye movements as sensitive indicators of lesions in the brain stem, the midbrain, and the cere bellum. By studying oculomotor malfunctions they have made, and are continuing to make, important contributions to our understanding of oculomotor functions.
| Author | : John R. Wilson |
| Publisher | : CRC Press |
| Total Pages | : 1048 |
| Release | : 2005-04-04 |
| Genre | : Technology & Engineering |
| ISBN | : 9781420055948 |
Completely revised and updated, Evaluation of Human Work is a compendium of ergonomics methods and techniques that is both broad and deep. The editors have once again brought together a team of world-renowned experts and created a forum for them to introduce their most valued techniques and methods. Almost every chapter has been revised and several new chapters have been added. See what’s new in the Third Edition: Sociotechnical design of work systems Team design and evaluation Learning from failures through a joint cognitive systems perspective The Analysis of organizational processes Techniques in user-centered design Increased understanding of the nature of knowledge and knowledge management in contemporary systems Environment surveys Systems for near miss reporting and analysis The one thing that has remained unchanged from the first and second editions is that this text is produced NOT as a cookbook of ergonomics methods. The editor places ergonomics methodology in context, and each chapter carefully describes the background to method development in that area and the application of methods and tools. Exploring the topic of ergonomics/human factors from a ‘doing it’ perspective, the book serves as a guide to what ergonomics can offer industry, business, or human service professionals and a reference for practicing ergonomists.
| Author | : Leonard Carmichael |
| Publisher | : |
| Total Pages | : 502 |
| Release | : 1947 |
| Genre | : Eye |
| ISBN | : |
