Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download The Physiology And Perception Of Visibility And Visual Masking PDF full book. Access full book title The Physiology And Perception Of Visibility And Visual Masking.
| Author | : Stephen L. Macknik |
| Publisher | : |
| Total Pages | : 240 |
| Release | : 1996 |
| Genre | : Visual masking |
| ISBN | : |
| Author | : Bruno Breitmeyer |
| Publisher | : OUP Oxford |
| Total Pages | : 384 |
| Release | : 2006-04-20 |
| Genre | : Psychology |
| ISBN | : 0191546208 |
Our visual system can process information at both conscious and unconscious levels. Understanding the factors that control whether a stimulus reaches our awareness, and the fate of those stimuli that remain at an unconscious level, are the major challenges of brain science in the new millennium. Since its publication in 1984, Visual Masking has established itself as a classic text in the field of cognitive psychology. In the years since, there have been considerable advances in the cognitive neurosciences, and a growth of interest in the topic of consciousness, and the time is ripe for a new edition of this text. Where most current approaches to the study of visual consciousness adopt a 'steady-state' view, the approach presented in this book explores its dynamic properties. This new edition uses the technique of visual masking to explore temporal aspects of conscious and unconscious processes down to a resolution in the millisecond range. The 'time slices' through conscious and unconscious vision revealed by the visual masking technique can shed light on both normal and abnormal operations in the brain. The main focus of this book is on the microgenesis of visual form and pattern perception - microgenesis referring to the processes occurring in the visual system from the time of stimulus presentation on the retinae to the time, a few hundred milliseconds later, of its registration at conscious or unconscious perceptual and behavioural levels. The book takes a highly integrative approach by presenting microgenesis within a broad context encompassing visuo-temporal phenomena, attention, and consciousness.
| Author | : Dorothea Jameson |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 822 |
| Release | : 2012-12-06 |
| Genre | : Medical |
| ISBN | : 3642886582 |
This volume on Visual Psychophysics documents the current status of research aimed toward understanding the intricacies of the visual mechanism and its laws of operation in intact human perceivers. As can be seen from the list of contributors, the problems of vision engage the interest and experimental ingenuity of investi gators from a variety of disciplines. Thus we find authors affiliated with depart ments of biology, medical and physiological physics, ophthalmology, physics, physiology and anatomy, psychology, laboratories of neurophysiology, medical clinics, schools of optometry, visual and othcr types of research institutes. A continuing interplay between psychophysical studies and physiological work is everywhere evident. As more information about the physiological basis of vision accumulates, and new studies and analyses of receptor photochemistry and the neurophysiology of retina and brain appear, psychophysical studies of the intact organism become more sharply focused, sometimes more complex, and often more specialized. Technological advances have increased the variety and precision of the stimulus controls, and advances in measurement techniques have reopened old problems and stimulated the investigation of new ones. In some cases, new concepts are being drawn in to help further our under standing of the laws by which the visual mechanism operates; in other cases, ideas enunciated long ago have been reevaluated, developed more fully, and reified in terms of converging evidence from both psychophysical experiments and unit recordings from visual cells.
| Author | : Robert A. Smith |
| Publisher | : |
| Total Pages | : 60 |
| Release | : 1986 |
| Genre | : |
| ISBN | : |
Studies continue on spatio-temporal interactions between briefly-flashed lines. The delayed facilitation we previously reported suggested that we were tapping a motion-detector system. However extensive experiments which failed to correlate our line interactions with the motion aftereffect and other well-known manifestations of motion detection have convinced us that we are measuring something different. We currently believe we may be tapping the moving-object detectors described by Burr. We have demonstrated that transient stimulation produces a substantial change in the configuration of inhibition and excitation, as revealed by summation between briefly-flashed lines. We have extended our studies of summation between lines to parafoveal vision. Unlike most visual functions, spatial summation in the periphery does not increase in direct proportion to cortical magnification. Based on our studies of summation, we predicted and observed that aliasing, though absent in the fovea, should be present in the parafovea. Studies of velocity discrimination suggest that there do not exist a small numer of discrete velocity detectors, but rather a near-continuum of theses. Keywords: Visual targets; Moving targets; Visual perception.
| Author | : Anne Sommerfeld |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2023 |
| Genre | : |
| ISBN | : |
The visibility of visual stimuli can be manipulated by various methods such as visual masking or crowding in such a way that the viewer can no longer identify the stimulus. Despite these circumstances, the stimuli can be processed in the brain to a certain degree, which is why these methods are also used to compare the information processing of conscious and unconscious visual stimuli. In this way, conclusions can be drawn about the limits of processing unconscious stimuli or the neuronal correlates of consciousness. This serves as a basis for a better understanding of the function of consc...
| Author | : Patrick R. Green |
| Publisher | : |
| Total Pages | : 431 |
| Release | : 1990 |
| Genre | : |
| ISBN | : |
| Author | : J. Gordon Betts |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2013-04-25 |
| Genre | : |
| ISBN | : 9781947172807 |
| Author | : Bruno Breitmeyer |
| Publisher | : Oxford University Press, USA |
| Total Pages | : 383 |
| Release | : 2006-04-20 |
| Genre | : Medical |
| ISBN | : 0198530676 |
Where most current approaches to the study of visual consciousness adopt a 'steady-state' view, the approach presented in this book explores its dynamic properties down to a resolution in the millisecond range."--BOOK JACKET.
| Author | : Gislin Dagnelie |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 456 |
| Release | : 2011-02-19 |
| Genre | : Technology & Engineering |
| ISBN | : 1441907548 |
Visual Prosthetics provides an in-depth analysis of the principles of operation, current state, anticipated developments, and functional aspects of visual prosthetics restoring sight to visually impaired individuals. This volume uniquely describes the human visual system in health and disease in a pedagogical and didactic manner, fitting to professionals and researchers with a bioengineering background. Readers will find a balanced overview of electrical, molecular chemical and synthetic chromophore stimulation, in addition to the biophysics and psychological aspects of vision restoration. Unlike competitive texts, this introduction also includes the need and methods for functional evaluation and rehabilitation. Professionals in the field of biomedical engineering and graduate and postgraduate researchers will find Visual Prosthetics a valuable reference.
| Author | : Simon Liversedge |
| Publisher | : OUP Oxford |
| Total Pages | : 1048 |
| Release | : 2011-08-18 |
| Genre | : Psychology |
| ISBN | : 0191626619 |
In the past few years, there has been an explosion of eye movement research in cognitive science and neuroscience. This has been due to the availability of 'off the shelf' eye trackers, along with software to allow the easy acquisition and analysis of eye movement data. Accompanying this has been a realisation that eye movement data can be informative about many different aspects of perceptual and cognitive processing. Eye movements have been used to examine the visual and cognitive processes underpinning a much broader range of human activities, including, language production, dialogue, human computer interaction, driving behaviour, sporting performance, and emotional states. Finally, in the past thirty years, there have been real advances in our understanding of the neural processes that underpin eye movement behaviour. The Oxford Handbook of Eye Movements provides the first comprehensive review of the entire field of eye movement research. In over fifty chapters, it reviews the developments that have so far taken place, the areas actively being researched, and looks at how the field is likely to devlop in the coming years. The first section considers historical and background material, before moving onto section 2 on the neural basis of eye movements. The third and fourth sections looks at visual cognition and eye movements and eye movement pathology and development. The final sections consider eye movements and reading and language processing and eye movements. Bringing together cutting edge research from and international team of leading psychologists, neuroscientists, and vision researchers, this book is the definitive reference work in this field.
