Download or read book Effects of Peripheral Vision on Eye Movements written by Elena Hitzel and published by Springer. This book was released on 2015-01-05 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elena Hitzel pursues the idea that human gaze locations are influenced by currently non-fixated objects that are visible in the peripheral visual field. Using eye tracking equipment and a Virtual Reality system to provide naturalistic tasks, the author shows that gaze is biased towards a neighboring object, especially when this object is relevant to the subject’s current task. This suggests that peripheral vision is used in the allocation of gaze in daily life and that this bias can be interpreted in terms of a compromise between foveal and peripheral information gain. The benefit of this bias in natural vision is discussed in the context of bottom-up and top-down theories.
Download or read book Making Eye Health a Population Health Imperative written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-01-15 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability to see deeply affects how human beings perceive and interpret the world around them. For most people, eyesight is part of everyday communication, social activities, educational and professional pursuits, the care of others, and the maintenance of personal health, independence, and mobility. Functioning eyes and vision system can reduce an adult's risk of chronic health conditions, death, falls and injuries, social isolation, depression, and other psychological problems. In children, properly maintained eye and vision health contributes to a child's social development, academic achievement, and better health across the lifespan. The public generally recognizes its reliance on sight and fears its loss, but emphasis on eye and vision health, in general, has not been integrated into daily life to the same extent as other health promotion activities, such as teeth brushing; hand washing; physical and mental exercise; and various injury prevention behaviors. A larger population health approach is needed to engage a wide range of stakeholders in coordinated efforts that can sustain the scope of behavior change. The shaping of socioeconomic environments can eventually lead to new social norms that promote eye and vision health. Making Eye Health a Population Health Imperative: Vision for Tomorrow proposes a new population-centered framework to guide action and coordination among various, and sometimes competing, stakeholders in pursuit of improved eye and vision health and health equity in the United States. Building on the momentum of previous public health efforts, this report also introduces a model for action that highlights different levels of prevention activities across a range of stakeholders and provides specific examples of how population health strategies can be translated into cohesive areas for action at federal, state, and local levels.
Download or read book The Utility of Peripheral Vision to Motor Vehicle Drivers written by Thomas Hugh Rockwell and published by . This book was released on 1977 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emergent Techniques for Assessment of Visual Performance written by National Research Council and published by National Academies Press. This book was released on 1985-01-01 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The Role of Eye Movements in Sports and Active Living written by Fabio Augusto Barbieri and published by Frontiers Media SA. This book was released on 2020-12-23 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Download or read book Eye movement Control During Scene Viewing written by Anke Cajar and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Eye movements serve as a window into ongoing visual-cognitive processes and can thus be used to investigate how people perceive real-world scenes. A key issue for understanding eye-movement control during scene viewing is the roles of central and peripheral vision, which process information differently and are therefore specialized for different tasks (object identification and peripheral target selection respectively). Yet, rather little is known about the contributions of central and peripheral processing to gaze control and how they are coordinated within a fixation during scene viewing. Additionally, the factors determining fixation durations have long been neglected, as scene perception research has mainly been focused on the factors determining fixation locations. The present thesis aimed at increasing the knowledge on how central and peripheral vision contribute to spatial and, in particular, to temporal aspects of eye-movement control during scene viewing. In a series of five experiments, we varied processing difficulty in the central or the peripheral visual field by attenuating selective parts of the spatial-frequency spectrum within these regions. Furthermore, we developed a computational model on how foveal and peripheral processing might be coordinated for the control of fixation duration. The thesis provides three main findings. First, the experiments indicate that increasing processing demands in central or peripheral vision do not necessarily prolong fixation durations; instead, stimulus-independent timing is adapted when processing becomes too difficult. Second, peripheral vision seems to play a prominent role in the control of fixation durations, a notion also implemented in the computational model. The model assumes that foveal and peripheral processing proceed largely in parallel and independently during fixation, but can interact to modulate fixation duration. Thus, we propose that the variation in fixation durations can in part be accounted for by the interaction between central and peripheral processing. Third, the experiments indicate that saccadic behavior largely adapts to processing demands, with a bias of avoiding spatial-frequency filtered scene regions as saccade targets. We demonstrate that the observed saccade amplitude patterns reflect corresponding modulations of visual attention. The present work highlights the individual contributions and the interplay of central and peripheral vision for gaze control during scene viewing, particularly for the control of fixation duration. Our results entail new implications for computational models and for experimental research on scene perception.
Download or read book Visual Impairments written by National Research Council and published by National Academies Press. This book was released on 2002-08-17 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: When children and adults apply for disability benefits and claim that a visual impairment has limited their ability to function, the U.S. Social Security Administration (SSA) is required to determine their eligibility. To ensure that these determinations are made fairly and consistently, SSA has developed criteria for eligibility and a process for assessing each claimant against the criteria. Visual Impairments: Determining Eligibility for Social Security Benefits examines SSA's methods of determining disability for people with visual impairments, recommends changes that could be made now to improve the process and the outcomes, and identifies research needed to develop improved methods for the future. The report assesses tests of visual function, including visual acuity and visual fields whether visual impairments could be measured directly through visual task performance or other means of assessing disability. These other means include job analysis databases, which include information on the importance of vision to job tasks or skills, and measures of health-related quality of life, which take a person-centered approach to assessing visual function testing of infants and children, which differs in important ways from standard adult tests.
Download or read book Eye Movements written by Dennis F. Fisher and published by Routledge. This book was released on 2017-03-27 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1981, this volume represents the edited proceedings of the third symposium on eye movements and behaviour sponsored by the US Army Human Engineering Laboratory. The conference, titled "The Last Whole Earth Eye Movement Conference" was held in Florida in February 1980. As the conference approached, seizure of the American hostages by the Iranian militants, the Russian invasion of Afghanistan, and the uncertain economic outlook around the world made it appear as though the title was a self-fulfilling prophecy. But the meeting proved highly successful and people throughout the world seemed to be adapting to the stresses of international tension, making the possibility of subsequent meetings more likely. The present volume is intended to serve as a complementary text to the earlier texts Eye Movements and Psychological Processes (Monty & Senders, 1976) and Eye Movements and the Higher Psychological Functions (Senders, Fisher & Monty, 1978), rather than a revision and update of them.
Download or read book Diseases and Disorders of the Orbit and Ocular Adnexa E Book written by Aaron Fay and published by Elsevier Health Sciences. This book was released on 2016-11-04 with total page 747 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing from the knowledge and expertise of more than 70 contributing international experts, Diseases and Disorders of the Orbit and Ocular Adnexa thoroughly covers the state of the art in orbital and periocular disease from the perspective of a variety of specialties. Clearly written and profusely illustrated, it covers the clinical presentation, pathophysiology, natural history, and management alternatives of disease processes affecting the orbit, eyelids, lacrimal system, and upper face. With a singular focus on the diagnosis and management of orbital and ocular adnexal disease, this authoritative text gives you the information you need to excel both in practice and on exams in the specialty of ophthalmic plastic and reconstructive surgery. - Offers an in-depth and thorough approach to the pathophysiology of oculoplastics and orbital disease, incorporating the perspectives of numerous specialties – all in one convenient volume. - Uses an easy-to-follow, templated format throughout so you can find what you need quickly. - Covers new information not included in other texts, such as antibody testing in dysthyroid conditions and a rapidly emerging array of targeted immunosuppressive medications for the treatment of inflammatory orbital disease. - Includes hot topics such as the classification and management of orbital inflammatory disease; vascular neoplasms and malformations; periocular dermatology; burn management; facial paralytic disease; and the pathogenesis, evaluation and management of lymphoproliferative disease. - Features more than 1,200 high-quality clinical, imaging, and histological illustrations that provide clear visual examples of orbital disease. - Written by an international team of experts from five continents (across multiple specialties including ophthalmology, dermatology, burn management, plastic surgery, otolaryngology, endocrinology, and pathology) led by Dr. Aaron Fay and Dr. Peter J. Dolman.
Download or read book Handbook of Pediatric Retinal OCT and the Eye Brain Connection E Book written by Cynthia A. Toth and published by Elsevier Health Sciences. This book was released on 2019-05-04 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Coherence Tomography (OCT) plays a vital role in pediatric retina diagnosis, often revealing unrecognized retinal disorders and connections to brain injury, disease, and delayed neurodevelopment. Handbook of Pediatric Retinal OCT and the Eye-Brain Connection provides authoritative, up-to-date guidance in this promising area, showing how to optimize imaging in young children and infants, how to accurately interpret these images, and how to identify links between these images and brain and developmental disorders. - Illustrates optimal methods of OCT imaging of children and infants, how to avoid pitfalls, and how to recognize and avoid artifacts - Explains how the OCT image may relate to brain disease and delayed neurodevelopment - Features more than 200 high-quality images and scans that depict the full range of disease in infants and young children - Provides guidance in identifying retinal layers and important abnormalities. - Covers the structural features of the retina and optic nerve head in developmental, acquired, or inherited conditions that affect the eye and visual pathways - Offers practical ways to set up imaging programs in the clinic, operating room, or neonatal nursery
Download or read book Eye Movements and Vision written by A. L. Yarbus and published by Springer. This book was released on 2013-11-11 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eye Movements and Psychological Functions written by Rudolf Groner and published by Routledge. This book was released on 2021-09-30 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1983, this volume represents the edited proceedings of the first conference organized by the European Group for Eye Movement Research with the theme "Eye Movements: Current Research and Methodology". The conference was held at the Department of Psychology, University of Bern, Switzerland in 1981. The book is divided into four parts covering: Methods; Central and Peripheral Processing; Picture Viewing and Visual Tracking; and Cognitive Processes and Reading. Each part is introduced by one of the session chairpersons of the conference.
Download or read book Oxford Textbook of Vertigo and Imbalance written by Adolfo Bronstein and published by OUP Oxford. This book was released on 2013-02-21 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vertigo, dizziness, and imbalance rank amongst the most common presenting symptoms in neurology, ENT, geriatric medicine, and general practice. These symptoms can originate from many different organs and systems, such as the inner ear, general medical conditions, neurological and psychological disorders. The Oxford Textbook of Vertigo and Imbalance provides an up-to-date summary of the scientific basis, clinical diagnosis, and management of disorders leading to dizziness and poor balance. This textbook is conceptually divided into three sections, detailing the scientific basis, general clinical issues, and specific diseases diagnosed in clinical practice that are responsible for complaints of dizziness and imbalance. Individual chapters address benign paroxysmal positional vertigo, vestibular migraine, vestibular neuritis, stroke, and Ménière's disease. Additional chapters follow a syndrome-based approach and cover multiple conditions, including cerebellar disorders, bilateral vestibular failure and gait, and psychological disorders. The print edition is complemented by an online version, which allows access to the full content of the textbook, contains links from the references to primary research journal articles, allows full text searches, and provides access to figures and tables that can be downloaded to PowerPoint. It serves a useful clinical reference for neurologists, otorhinolaryngologists, audio-vestibular physicians, and senior trainees in those specialties.
Download or read book Looking and Acting written by Michael Land and published by Oxford University Press. This book was released on 2009-07-30 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: How do our eyes process and communicate the data needed for us to negotiate the world around us? This book exploits recent technological advances in eye tracking systems to present a state-of-the-art account of human vision. It explores practical implications, for example in driving, playing sports, and ergonomics.
Download or read book Peripheral Vision Displays written by Leroy L. Vallerie and published by . This book was released on 1967 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A study was conducted to determine the effectiveness of peripheral vision displays for presenting dynamic tracking information during difficult control tasks such as landing high speed aircraft or rendezvousing spacecraft. Based on a review of the literature, it was hypothesized that peripheral displays could be successfully used to improve performance provided visual switching between information sources is normally an essential part of such tasks. Visual switching consists of eye movement, accommodation, and convergence. The hypothesis was tested in the laboratory by comparing operator performance on a two dimensional compensatory tracking task under conditions in which the requirements for visual switching and the provisions of peripheral displays were systematically varied and controlled. It was clearly demonstrated that tracking performance deteriorates as visual switching increases and that peripheral displays can be used to overcome its adverse effects."--Abstract
Download or read book Eye Guidance in Reading and Scene Perception written by G. Underwood and published by Elsevier. This book was released on 1998-07-16 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: The distinguished contributors to this volume have been set the problem of describing how we know where to move our eyes. There is a great deal of current interest in the use of eye movement recordings to investigate various mental processes. The common theme is that variations in eye movements indicate variations in the processing of what is being perceived, whether in reading, driving or scene perception. However, a number of problems of interpretation are now emerging, and this edited volume sets out to address these problems. The book investigates controversies concerning the variations in eye movements associated with reading ability, concerning the extent to which text is used by the guidance mechanism while reading, concerning the relationship between eye movements and the control of other body movements, the relationship between what is inspected and what is perceived, and concerning the role of visual control attention in the acquisition of complex perceptual-motor skills, in addition to the nature of the guidance mechanism itself. The origins of the volume are in discussions held at a meeting of the European Society for Cognitive Psychology (ESCOP) that was held in Wurzburg in September 1996. The discussions concerned the landing effect in reading, an effect, that if substantiated, would provide evidence of the use of parafoveal information in eye guidance, and these discussions were explored in more detail at a small meeting in Chamonix, in February 1997. Many of the contributors to this volume were present at the meeting, but the arguments were not resolved in Chamonix either. Other leaders in the field were invited to contribute to the discussion, and this volume is the product. The argument remains unresolved, but the problem is certainly clearer.
Download or read book Eye Movement Research written by Christoph Klein and published by Springer Nature. This book was released on 2019-10-16 with total page 1017 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume presents fundamentals as well as applications of oculomotor methods in industrial and clinical settings. The topical spectrum covers 1.) basics and background material, 2.) methods such as recording techniques, markov models, Lévy flights, pupillometry and many more, as well as 3.) a broad range of applications in clinical and industrial settings. The target audience primarily comprises research experts and practitioners, but the book may also be beneficial for graduate students.
