Lateral Interactions In The Primary Visual Cortex And Their Role In Perception
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Lateral Interactions In The Primary Visual Cortex And Their Role In Perception
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Author : Mitesh K. Kapadia
language : en
Publisher:
Release Date : 1999
Lateral Interactions In The Primary Visual Cortex And Their Role In Perception written by Mitesh K. Kapadia and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
The Cat Primary Visual Cortex
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Author : Bertram Payne
language : en
Publisher: Academic Press
Release Date : 2001-11-17
The Cat Primary Visual Cortex written by Bertram Payne and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-11-17 with Medical categories.
Written by experts on the forefront of investigations of brain function, vision, and perception, the material presented is of an unparalleled scientific quality, and shows that analyses of enormous breadth and sophistication are required to probe the structure and function of brain regions. The articles are highly persuasive in showing what can be achieved by carrying out careful and imaginative experiments. The Cat Primary Visual Cortex should emerge as essential reading for all those interested in cerebral cortical processing of visual signals or researching or working in any field of vision. Comprehensive account of cat primary visual cortex Generous use of illustrations including color Covers research from structure to connections to functions Chapters by leaders in the field Topics presneted on multiple, compatible levels
Visual Perception Part 2
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Author : Susana Martinez-Conde
language : en
Publisher: Elsevier
Release Date : 2006-10-06
Visual Perception Part 2 written by Susana Martinez-Conde and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-10-06 with Psychology categories.
This book presents a collection of articles reflecting state-of-the-art research in visual perception, specifically concentrating on neural correlates of perception. Each section addresses one of the main topics in vision research today. Part 2: Fundamentals of Awareness, Multi-Sensory Integration and High-Order Perception covers topics from filling-in to visual awareness to crossmodal interactions. A variety of methodological approaches are represented, including single-neuron recordings, fMRI and optical imaging, psychophysics, eye movement characterization and computational modelling. The contributions will provide the reader with a valuable perspective on the current status of vision research, and more importantly, with critical insight into future research directions and the discoveries yet to come. · Provides a detailed breakdown of the neural and psychophysical bases of Perception · Presents never-before-published original discoveries · Includes multiple full-color illustrations
Feedforward And Feedback Processes In Vision
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Author : Hulusi Kafaligonul
language : en
Publisher: Frontiers Media SA
Release Date : 2015-07-10
Feedforward And Feedback Processes In Vision written by Hulusi Kafaligonul and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-07-10 with Feedback categories.
The visual system consists of hierarchically organized distinct anatomical areas functionally specialized for processing different aspects of a visual object (Felleman & Van Essen, 1991). These visual areas are interconnected through ascending feedforward projections, descending feedback projections, and projections from neural structures at the same hierarchical level (Lamme et al., 1998). Accumulating evidence from anatomical, functional and theoretical studies suggests that these three projections play fundamentally different roles in perception. However, their distinct functional roles in visual processing are still subject to debate (Lamme & Roelfsema, 2000). The focus of this Research Topic is the roles of feedforward and feedback projections in vision. Even though the notions of feedforward, feedback, and reentrant processing are widely accepted, it has been found difficult to distinguish their individual roles on the basis of a single criterion. We welcome empirical contributions, theoretical contributions and reviews that fit into any one (or a combination) of the following domains: 1) their functional roles for perception of specific features of a visual object 2) their contributions to the distinct modes of visual processing (e.g., pre-attentive vs. attentive, conscious vs. unconscious) 3) recent techniques/methodologies to identify distinct functional roles of feedforward and feedback projections and corresponding neural signatures. We believe that the current Research Topic will not only provide recent information about feedforward/feedback processes in vision but also contribute to the understanding fundamental principles of cortical processing in general.
Visual Perception
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Author : Isak L. Nilsson
language : en
Publisher: Nova Science Publishers
Release Date : 2008
Visual Perception written by Isak L. Nilsson and has been published by Nova Science Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Visual perception categories.
In psychology, visual perception is the ability to interpret information from visible light reaching the eyes. The resulting perception is also known as eyesight, sight or vision. The various physiological components involved in vision are referred to collectively as the visual system. The visual system in humans allows individuals to assimilate information from the environment. The act of seeing starts when the lens of the eye focuses an image of its surroundings onto a light-sensitive membrane in the back of the eye, called the retina. The retina is actually part of the brain that is isolated to serve as a transducer for the conversion of patterns of light into neuronal signals. The lens of the eye focuses light on the photoreceptive cells of the retina, which detect the photons of light and respond by producing neural impulses. These signals are processed in a hierarchical fashion by different parts of the brain, from the retina to the lateral geniculate nucleus, to the primary and secondary visual cortex of the brain. The major problem in visual perception is that what people see is not simply a translation of retinal stimuli (i.e., the image on the retina). Thus people interested in perception have long struggled to explain what visual processing does to create what we actually see. This book presents leading edge research from around the globe on this field.
Neural Mechanisms Of Color Vision
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Author : Bevil R. Conway
language : en
Publisher: Springer Science & Business Media
Release Date : 2002-07-31
Neural Mechanisms Of Color Vision written by Bevil R. Conway and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-07-31 with Medical categories.
From the Foreword by Nobel Laureate David Hubel: "We now have the first clear demonstration of double opponent cells in the primate visual system. Given the temperament of those who work in the field of color vision there seems little doubt that heated debates will continue, but for the present at least, the subject seems to be as close to settled as such things can be in science." How the brain represents color remains one of the most controversial topics in neurophysiology. We know that color is represented through an opponent mechanism, demonstrated by the fact that some colors are exclusive of others. Yet how these antagonistic chromatic axes are represented in the cortex has been a mystery. Dr. Conway mapped the spatial and temporal structure of the cone inputs to single neurons in the primary visual cortex of the alert macaque. Color cells had receptive fields that were often Double-Opponent, an organization of spatial and chromatic opponency sufficient to form the basis for color constancy and spatial color contrast. Almost all color cells gave a bigger response to color when preceded by an opposite color, suggesting that these cells also encode temporal color contrast. In sum, color perception is likely subserved by a subset of specialized neurons in the primary visual cortex. These cells are distinct from those that likely underlie form and motion perception. Color cells establish three color axes sufficient to describe all colors; moreover these cells are capable of computing spatial and temporal color contrast - and probably contribute to color constancy computations - because the receptive fields of these cells show spatial and temporal chromatic opponency.
Neuronal Operations In The Visual Cortex
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Author : Guy A. Orban
language : en
Publisher: Springer
Release Date : 1984
Neuronal Operations In The Visual Cortex written by Guy A. Orban and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Medical categories.
The invitation by the editors of the series "studies of brain function" to contribute a monograph on the visual cortex gives me the opportunity to present in a concentrated manner much of the work I have done on the visual cortical areas of cat and monkey. However, the field of visual cortical physi ology is so active and so diverse that the presentation of only my own work would have given a very incomplete view of visual cortical functioning. Therefore this monograph also reviews most of the studies carried out on the subject in the last two decades. Where possible I have tried not only to describe the cortical machinery but also its possible functional purpose regarding vision. In doing this I have expressed my personal views rather than just reviewing the experimental facts. Much of the work presented in this monograph has been supported by the National Research Council of Belgium and the Research Council of the Catholic University of Leuven. I express my gratitude to them. I have en joyed collaborating in these studies with P. O. Bishop, H. Kato, H. Kennedy, K. P. Hoffmann, H. Maes, J. Duysens, E. Vandenbussche, and H. van der Glas. I am much indebted to all those who have commented on earlier versions of this monograph: J. Allman, H. Barlow, J. BuBier, M. Callens, J. Duysens, O. J. Griisser, P. Heggelund, H. Kennedy, L. C. Orban and L. Palmer.
Development And Plasticity Of Visual Cortex
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Author : Takao Kurt Hensch
language : en
Publisher:
Release Date : 1996
Development And Plasticity Of Visual Cortex written by Takao Kurt Hensch and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Neuroplasticity categories.
Visual Attention Mechanisms
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Author : Virginio Cantoni
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Visual Attention Mechanisms written by Virginio Cantoni and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Computers categories.
Proceedings of the Fifth International School on Neural Networks "E.R. Caianiello" on Visual Attention MechaProceedings of the Fifth International School on Neural Networks "E.R. Caianiello" on Visual Attention Mechanisms, held 23-28 October 2000 in Vietri sul Mare, Italy.nisms, held 23-28 October 2000 in Vietri sul Mare, Italy. The book covers a number of broad themes relevant to visual attention, ranging from computer vision to psychology and physiology of vision. The main theme of the book is the attention processes of vision systems and it aims to point out the analogies and the divergences of biological vision with the frameworks introduced by computer scientists in artificial vision.
Perception
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Author : Tom Troscianko
language : en
Publisher: SAGE Publications Limited
Release Date : 2010-05-26
Perception written by Tom Troscianko and has been published by SAGE Publications Limited this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-05-26 with Psychology categories.
This collection brings together the major papers in the field of Perception, covering all five sensory modalities. This is a rich area, both in terms of the history and breadth of the subject. The articles included range from recent influential reviews to introduce an area and historical and classic material to leading-edge recent work which may challenge accepted practice. The aim is to provide a feel for the dynamism of the field - often illustrated by major debates between various positions. Perception begins with an introduction by the editors. The introductory chapter serves as a navigation guide through the rest of the collection, and summarizes the major debates and advances from what was, initially, a topic within philosophy through to the present neuro-scientific basis of the field. Volumes I and II focuses on visual perception as vision is the most widely-researched modality, and these volumes include classic readings on the topic, from the perception of form, color, and motion, to the grouping of these elements to facilitate the recognition. Volume III covers hearing and touch; papers on hearing cover basic perception of acoustic signals. Touch is represented by research on low-level perception of physical stimuli through to the feeling of pain. Volume IV looks the chemical senses of taste and smell - two closely-related systems. Furthermore, this volume illustrates how theorists have characterized the integration of perceptual systems, and how they interact in the multi-modal world. This major work will prove to be a valuable resource for scholars in Psychology and related disciplines who wish to access this body of knowledge.