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The Interaction Of Visual Perception And Saccadic Eye Movements
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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.
Book Synopsis The Interaction of Visual Perception and Saccadic Eye Movements by : Alby-Réal Richard
Download or read book The Interaction of Visual Perception and Saccadic Eye Movements written by Alby-Réal Richard and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Primates have evolved to make high velocity, ballistic eye movements called saccades approximately three to five times per second in order to orient the high resolution part of their retina, or fovea, towards objects of interest. While saccades are generally adaptive in most situations, they also present the brain with certain challenges in order maintain a stable perception of the world. With every movement of the visual axis involving the eyes alone or through a combined eye-head gaze shift, the retina is presented with a rapidly changing view of the world. Most observers are not aware of the actual flow of incoming retinal information during a saccade, and instead perceive the world as being stable from one gaze movement to the next. How the brain accomplishes this stability has been referred to as the problem of 'trans-saccadic' perceptual stability. While this problem been pondered for more than a century by philosophers, psychologists, and neuroscientists, there is still no consensus on the precise mechanism by which visual stability is achieved. One way to approach the problem of perceptual stability is to study the way in which visual perception changes around the time of saccades. It is well known that objects briefly presented around the time of saccadic eye movements are not perceived at their veridical location, a phenomenon called perisaccadic mislocalization. Most observers make errors of two types that are predictable and systematic: a translational shift in the direction of the saccade, and compression towards the target location. This later effect, the compression of visual space towards the saccade target, is the primary phenomenon through which this thesis sought to understand the mechanisms responsible for visual stability across saccades. To this end, a series of psychophysical experiments were conducted to explore which signals may be involved in computing where an object was in space around the time of a saccade. In the fist paper, we described a biological framework in which an oculomotor signal encoding the gaze command interacts with a visual signal encoding afferent information. The outcome of this interaction was related to the perceived position of the object presented around the time of the saccade, and this formulation was able to capture both our results in addition to data from outside our laboratory. After successfully modelling the compression effect within a plausible biological framework, the next paper focused on elucidating the nature of the oculomotor signal. We accomplished this by testing observers in a variety of conditions aimed to disambiguate whether the signal was encoding the eye movement alone or the eye-head gaze shift, and found that compression was indeed linked to the eye-head gaze shift. Moreover, the experiments performed allowed us to further describe the parameters involved in modulating the compression effect. With our understanding of the compression effect and the likely biological signals involved, we then used this model to gain an enhanced understanding of how perisaccadic visual perception may be altered in patients with schizophrenia. The final paper examines the postulate that patients with schizophrenia may have an altered corollary discharge signal in the visual pathway for saccadic eye movements. With this study we were able to show that these patients do in fact exhibit qualitative differences in mislocalization compared to controls, and that these are attributable to a noisy corollary discharge that encodes the eye's position in space. This thesis comprises a systematic overview of what signals are involved in maintaining perceptual stability across saccadic eye and head movements. We have been able to investigate these signals through a combination of psychophysical studies and computational modeling. Finally, we used these paradigms to understand how these signaling mechanisms are altered in patients with schizophrenia. " --
Book Synopsis The Role of Eye Movements in Perceptual Processes by : E. Chekaluk
Download or read book The Role of Eye Movements in Perceptual Processes written by E. Chekaluk and published by Elsevier. This book was released on 1992-07-06 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has become a truism that the frozen optical diagram representation of vision is the worst possible picture of the way in which we visually interact with the environment. Even apart from our reaction to moving targets by pursuit movements, our visual behaviour can be said to be characterised by eye movements. We sample from our environment in a series of relatively brief fixations which move from one point to another in a series of extremely rapid jerks known as saccades. Many questions arising from this characteristic of vision are explored within this volume, including the question of how our visual world maintains its perceptual stability despite the drastic changes in input associated with these eye movements.
Download or read book The Mind's Eye written by Ralph Radach and published by Elsevier. This book was released on 2003-06-05 with total page 763 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a comprehensive state-of-the-art overview of current research on cognitive and applied aspects of eye movements. The contents include peer-reviewed chapters based on a selection of papers presented at the 11th European Conference on Eye Movements (Turku, Finland 2001), supplemented by invited contributions. The ECEM conference series brings together researchers from various disciplines with an interest to use eye-tracking to study perceptual and higher order cognitive functions. The contents of the book faithfully reflect the scope and diversity of interest in eye-tracking as a fruitful tool both in basic and applied research. It consists of five sections: visual information processing and saccadic eye movements; empirical studies of reading and language production; computational models of eye movements in reading; eye-tracking as a tool to study human-computer interaction; and eye movement applications in media and communication research. Each section is concluded by a commentary chapter by one of the leading authorities in the field. These commentaries discuss and integrate the contributions in the section and provide an expert view on the most significant present and future developments in the respective areas. The book is a reference volume including a large body of new empirical work but also principal theoretical viewpoints of leading research groups in the field.
Book Synopsis Eye Movements and Visual Cognition by : Keith Rayner
Download or read book Eye Movements and Visual Cognition written by Keith Rayner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by a leading scholar in the field, Eye Movements and Visual Cognitionpresents an up-to-date overview of the topics relevant to understanding the relationship between eye movements and visual cognition, particularly in relation to scene perception and reading. Cognitive psychologists, neuropsychologists, educational psychologists, and reading specialists will find this volume to be an authoritative source of state-of-the art research in this rapidly expanding area of study.
Book Synopsis Vision and Goal-Directed Movement by : Digby Elliott
Download or read book Vision and Goal-Directed Movement written by Digby Elliott and published by Human Kinetics. This book was released on 2010-02-05 with total page 575 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vision and Goal-Directed Movement: Neurobehavioral Perspectives is also available as an e-book. The e-book is available at a reduced price and allows readers to highlight and take notes throughout the text. When purchased through the Human Kinetics Web site, access to the e-book is immediately granted when the order is received. To interact with the environment, an individual must code, store, and translate spatial information into the appropriate motor commands for achieving an outcome. Working from this premise, Vision and Goal-Directed Movement: Neurobehavioral Perspectives discusses how visual perception, attention, and memory are linked to the processes of movement preparation and execution. With contributions from active researchers in movement science, Vision and Goal-Directed Movement presents the latest theories on the utilization of vision in goal-directed movement control. As a resource for motor control and motor learning researchers, students, educators, and clinicians, Vision and Goal-Directed Movement offers the following: • Comprehensive coverage of current behavior-based literature on the visual control of goal-directed movement • A systematic explication of the sensory and physiological processes and systems responsible for fast, accurate, and efficient performance • A solid foundation for further study of the sensory and neural systems responsible for precise goal-directed behavior • A discussion of how current research on vision and goal-directed movement can assist in creating efficient and safe work environments Using research informed by neural imaging and magnetic brain stimulation, this text provides readers with a better understanding of the neural foundations for goal-directed movement, illustrates the flexibility of the human visuomotor system, and discusses how regulation of movements depends on the learning and developmental history of the performer. It begins by reviewing the works of R.S. Woodworth and the influence of his theories on current research. The majority of the chapters in the first section of the book take a behavioral and process-oriented approach to exploring goal-directed movement. The text then explores the sensory and neural foundations for goal-directed action, including issues related to both pursuit and saccadic eye movements as well as discussion of the specialization of various cortical systems for the regulation of movement. Especially relevant to professionals and scientists concerned with skill instruction and rehabilitation, the final part of the text provides a review of recent research on how and why limb control changes occur with practice and development. In addition, Vision and Goal-Directed Movement considers how the research presented can maximize precision, efficiency, and safety in workspace design. Vision and Goal-Directed Movement: Neurobehavioral Perspectives adds a unique offering to the literature base for motor behavior, demonstrating how advances in both behavioral and neurophysiological methods can inform theories related to the biological systems contributing to skilled performance.
Book Synopsis Eye-movements and Visual Perception by : R. W. Ditchburn
Download or read book Eye-movements and Visual Perception written by R. W. Ditchburn and published by Oxford University Press, USA. This book was released on 1973 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eye Movements and the Higher Psychological Functions by : John W. Senders
Download or read book Eye Movements and the Higher Psychological Functions written by John W. Senders and published by Routledge. This book was released on 2017-03-27 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1978, this volume reflects the proceedings of a conference held in February 1977 in California and is a natural successor to the earlier volume Eye Movements and Psychological Processes (Monty & Senders, 1976). The second conference was aimed at providing a greater opportunity for discussing the "higher mental processes" touched on in the first volume. Part 1 is devoted to an intensive review of the underlying processes and psychological functions of eye movements. It includes discussions of the relationships of cortical and subcortical visual areas to eye movements and visual processing associated with them; information about the position of the eye in the head and the perception of visual space; saccades and visual functioning; and masking. In further parts it goes on to look at: methodology and models; cognitive processes; reading processes; looking at static and dynamic display; and finally chapters on problems and applications.
Book Synopsis Eye Movements in Reading by : Keith Rayner
Download or read book Eye Movements in Reading written by Keith Rayner and published by Elsevier. This book was released on 2012-12-02 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eye Movements in Reading: Perceptual and Language Processes focuses on eye movement and cognitive processes as a way to study the reading process. This book also discusses the different aspects of reading. Organized into seven parts encompassing 26 chapters, this book begins with a discussion on the perceptual and psychophysical factors essential to eye movement during reading. This book then explains how some psychophysical factors, such as type size and masking, affect the reading performance. Other chapters consider the role of transient and sustained cells, as well as their possible effects on reading. This text also examines the size of the perceptual span in reading and the integration of information across eye movement. Finally, this book explains the eye movement abnormalities, general eye movement parameters, and the cognitive processes within the reading disabled group. This book is a valuable resource to optometrists, scientists, field researchers, and readers who are interested in the reading process.
Book Synopsis The Interface of Language, Vision, and Action by : John Henderson
Download or read book The Interface of Language, Vision, and Action written by John Henderson and published by Psychology Press. This book was released on 2013-05-24 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together chapters from investigators on the leading edge on this new research area to explore on the leading edge on this new research area to explore common theoretical issues, empirical findings, technical problems, and outstanding questions. This book will serve as a blueprint for work on the interface of vision, language, and action over the next five to ten years.
Book Synopsis The Interaction Between Human Vision and Eye Movements in Health and Disease by : R. J. Sylvester
Download or read book The Interaction Between Human Vision and Eye Movements in Health and Disease written by R. J. Sylvester and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Human motor behaviour depends on the successful integration of vision and eye movements. Many studies have investigated neural correlates of visual processing in humans, but typically with the eyes stationary and fixated centrally. Similarly, many studies have sought to characterise which brain areas are responsible for oculomotor control, but generally in the absence of visual stimulation. The few studies to explicitly study the interaction between visual perception and eye movements suggest strong influences of both static and dynamic eye position on visual processing and modulation of oculomotor structures by properties of visual stimuli. However, the neural mechanisms underlying these interactions are poorly understood. This thesis uses a range of fMRI methodologies such as retinotopic mapping, multivariate analsyis techniques, dynamic causal modelling and ultra high resolution imaging to examine the interactions between the oculomotor and visual systems in the normal human brain. The results of the experiments presented in this thesis demonstrate that oculomotor behaviour has complex effects on activity in visual areas, while spatial properites of visual stimuli modify activity in oculomotor areas. Specifically, responses in the lateral geniculate nucleus and early cortical visual areas are modulated by saccadic eye movements (a process potentially mediated by the frontal eye fields) and by changes in static eye position. Additionally, responses in oculomotor structures such as the superior colliculus are biased for visual stimuli presented in the temporal rather than nasal hemifield. These findings reveal that although the visual and oculomotor systems are spatially segregated in the brain, they show a high degree of integration at the neural level. This is consistent with our everyday experience of the visual world where frequent eye movements do not lead to disruption of visual continuity and visual information is seamlessly transformed into motor behaviour.
Book Synopsis Eye Movement Research by : J.M. Findlay
Download or read book Eye Movement Research written by J.M. Findlay and published by Elsevier. This book was released on 1995-02-03 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains selected and edited papers from the 7th European Conference on Eye Movements (ECEM 7) held in Durham, UK on August 31-September 3 1993. The volume is organized as follows:- Invited Lectures, Pursuit and Co-Ordination, Saccade and Fixation Control, Oculomotor Physiology, Clinical and Medical Aspects of Eye Movements, Eye Movements and Cognition, Eye Movements and Language and finally, Displays and Applications.
Book Synopsis Eye Movements and Psychological Processes by : Richard A. Monty
Download or read book Eye Movements and Psychological Processes written by Richard A. Monty and published by Routledge. This book was released on 2017-03-27 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 10 years prior to publication the quantity of research on eye movements as they pertain to psychological processes had been increasing at a rapid rate. Originally published in 1976, the editors’ purpose was to bring together investigators representing different theoretical positions and methodological approaches to present their recent findings, to debate the theoretical points of view, and to identify and discuss the major research problems on eye movements at the time. An attempt was made to invite participants ranging all the way from promising graduate students through the established authorities in the field. The result was an intensive three-day session with meetings from early morning until late into the evening with much opportunity for formal and informal group discussion. The edited papers and transcripts of the discussions are the contents of this book.
Book Synopsis Eye Movements by : Roger PG van Gompel
Download or read book Eye Movements written by Roger PG van Gompel and published by Elsevier. This book was released on 2007-03-27 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eye-movement recording has become the method of choice in a wide variety of disciplines investigating how the mind and brain work. This volume brings together recent, high-quality eye-movement research from many different disciplines and, in doing so, presents a comprehensive overview of the state-of-the-art in eye-movement research. Sections include the history of eye-movement research, physiological and clinical studies of eye movements, transsaccadic integration, computational modelling of eye movements, reading, spoken language processing, attention and scene perception, and eye-movements in natural environments. - Includes recent research from a variety of disciplines - Divided into sections based on topic areas, with an overview chapter beginning each section - Through the study of eye movements we can learn about the human mind, and eye movement recording has become the method of choice in many disciplines
Book Synopsis Eye Guidance in Reading and Scene Perception by : G. Underwood
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.
Book Synopsis Visual and Oculomotor Functions by : G. d'Ydewalle
Download or read book Visual and Oculomotor Functions written by G. d'Ydewalle and published by Elsevier. This book was released on 2013-10-22 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of contemporary work in various areas of eye-movement research with an emphasis on physiological aspects is presented in this book. The contributions are divided into six sections: I. saccadic eye movements; II. smooth pursuit and motion perception; III. eye movements in pathology and clinical settings; IV. neurophysiology of eye movements; V. optokinetic nystagmus; and VI. methods. This volume provides updated information on the most recent research on eye movements carried out mainly in Europe.
Book Synopsis Eye Movements and Psychological Functions by : Rudolf Groner
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.
