Download or read book Contextual Interactions in Cortical Motion and Surface Perception written by Julia Berzhanskaya and published by . This book was released on 2005 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: This dissertation describes neural modeling and psychophysical experiments that clarify how ambiguous visual signals can be disambiguated by contextual interactions. A neural model of the V1-V2-MT-MST areas of the visual cortex is developed to explain how context can influence motion percepts. Psychophysical experiments clarify how context can influence the perception of gloss on a 3D surface and support earlier model predictions about perceptual surface formation. To process object motion in cluttered environments, the brain has to solve multiple problems. One concerns aperture ambiguity. If a featureless line is observed through an aperture in an occluding surface, the perceived direction of motion is perpendicular to the line and may differ from the real motion direction. Integration of motion across apertures helps to determine the true direction of motion. If multiple moving objects overlap, motion segmentation and motion separation in depth help to limit the areas of motion integration. Figure-ground constraints also help to disambiguate the object to which a moving feature belongs. Thus, both form and motion information are combined in the current 3D FORMOTION model to accurately determine object motion. The model simulates effects of visible and invisible occluders on segregation of motion signals within and across depth, and how object shape and nearby objects can influence motion percepts. The psychophysical experiments clarify how percepts of gloss in an image can change as a function distance on the depicted surface rather than of distance in the image plane. Data suggest that the perception of gloss depends on a spatially local filling-in process, or gloss propagation, that is triggered by distinctive highlight features in the context of a 3D surface representation. Space-variant gloss ratings can be explained by generalizing previous models of brightness perception.
Download or read book The Visual Cortical Interactions Underlying the Perception of Motion written by Agnes Patricia Funk and published by . This book was released on 2002 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Occlusion and the Interpretation of Visual Motion written by Robert O. Duncan and published by . This book was released on 1999 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamics of Visual Motion Processing written by Guillaume S. Masson and published by Springer Science & Business Media. This book was released on 2009-12-02 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Motion processing is an essential piece of the complex brain machinery that allows us to reconstruct the 3D layout of objects in the environment, to break camouflage, to perform scene segmentation, to estimate the ego movement, and to control our action. Although motion perception and its neural basis have been a topic of intensive research and modeling the last two decades, recent experimental evidences have stressed the dynamical aspects of motion integration and segmentation. This book presents the most recent approaches that have changed our view of biological motion processing. These new experimental evidences call for new models emphasizing the collective dynamics of large population of neurons rather than the properties of separate individual filters. Chapters will stress how the dynamics of motion processing can be used as a general approach to understand the brain dynamics itself.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2005 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Neuroscience Volume 1 written by Larry R. Squire and published by Academic Press. This book was released on 2009-06-12 with total page 12505 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of the Neuroscience explores all areas of the discipline in its focused entries on a wide variety of topics in neurology, neurosurgery, psychiatry and other related areas of neuroscience. Each article is written by an expert in that specific domain and peer reviewed by the advisory board before acceptance into the encyclopedia. Each article contains a glossary, introduction, a reference section, and cross-references to other related encyclopedia articles. Written at a level suitable for university undergraduates, the breadth and depth of coverage will appeal beyond undergraduates to professionals and academics in related fields.
Download or read book On Perceived Motion and Figural Organization written by Max Wertheimer and published by MIT Press. This book was released on 2012-07-27 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two seminal articles by a founder of the Gestalt school of psychology, newly translated and accompanied by essays that connect his work to current research. There are few articles in science that remain relevant over a span of 100 years; Max Wertheimer's pioneering experimental studies on apparent motion and figural organization are notable exceptions. Wertheimer's 1912 account of motion perception started a revolution and established the Gestalt school of psychology. It also paved the way for further investigations of apparent motion perception, including subsequent research by Oliver Braddick, Stuart Anstis, Vilaynur Ramachandran, and others. Wertheimer's 1923 article on figural organization (known as the "dot study" for its numerous examples of dot patterns) helped define grouping as a principle of figure-ground perception. This book provides contemporary readers and researchers with Wertheimer's two pivotal articles, newly translated into English and each accompanied by a synopsis, and two essays on apparent motion and figural organization that describe the long-term impact of Wertheimer's work. The translation of the original German into readable English prose allows English-language readers for the first time to appreciate Wertheimer's visionary ideas. The accompanying essays tie Wertheimer's phenomenological descriptions to the underlying neuronal mechanisms, bridging the years between the articles' first publication and modern research.
Download or read book Lateral Interactions in the Primary Visual Cortex and Their Role in Perception written by Mitesh K. Kapadia and published by . This book was released on 1999 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laminar Cortical Dynamics of Visual Form and Motion Interactions During Coherent Object Motion Perception written by Julia Berzhanskaya and published by . This book was released on 2006 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reciprocal Interactions Between Motion and Form Perception written by P. Sinha and published by . This book was released on 1994 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stevens Handbook of Experimental Psychology and Cognitive Neuroscience Sensation Perception and Attention written by and published by John Wiley & Sons. This book was released on 2018-02-12 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt: II. Sensation, Perception & Attention: John Serences (Volume Editor) (Topics covered include taste; visual object recognition; touch; depth perception; motor control; perceptual learning; the interface theory of perception; vestibular, proprioceptive, and haptic contributions to spatial orientation; olfaction; audition; time perception; attention; perception and interactive technology; music perception; multisensory integration; motion perception; vision; perceptual rhythms; perceptual organization; color vision; perception for action; visual search; visual cognition/working memory.)
Download or read book Filling in written by Luiz Pessoa and published by Oxford University Press, USA. This book was released on 2003 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: The best example of filling-in involves the blind spot, a region of the retina devoid of photoreceptors. While this phenomenon is common in the visual domain, it is argued by contributors to this book that forms of filling-in also take place in other sensory modalities.
Download or read book From Neuron to Cognition via Computational Neuroscience written by Michael A. Arbib and published by MIT Press. This book was released on 2016-11-11 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive, integrated, and accessible textbook presenting core neuroscientific topics from a computational perspective, tracing a path from cells and circuits to behavior and cognition. This textbook presents a wide range of subjects in neuroscience from a computational perspective. It offers a comprehensive, integrated introduction to core topics, using computational tools to trace a path from neurons and circuits to behavior and cognition. Moreover, the chapters show how computational neuroscience—methods for modeling the causal interactions underlying neural systems—complements empirical research in advancing the understanding of brain and behavior. The chapters—all by leaders in the field, and carefully integrated by the editors—cover such subjects as action and motor control; neuroplasticity, neuromodulation, and reinforcement learning; vision; and language—the core of human cognition. The book can be used for advanced undergraduate or graduate level courses. It presents all necessary background in neuroscience beyond basic facts about neurons and synapses and general ideas about the structure and function of the human brain. Students should be familiar with differential equations and probability theory, and be able to pick up the basics of programming in MATLAB and/or Python. Slides, exercises, and other ancillary materials are freely available online, and many of the models described in the chapters are documented in the brain operation database, BODB (which is also described in a book chapter). Contributors Michael A. Arbib, Joseph Ayers, James Bednar, Andrej Bicanski, James J. Bonaiuto, Nicolas Brunel, Jean-Marie Cabelguen, Carmen Canavier, Angelo Cangelosi, Richard P. Cooper, Carlos R. Cortes, Nathaniel Daw, Paul Dean, Peter Ford Dominey, Pierre Enel, Jean-Marc Fellous, Stefano Fusi, Wulfram Gerstner, Frank Grasso, Jacqueline A. Griego, Ziad M. Hafed, Michael E. Hasselmo, Auke Ijspeert, Stephanie Jones, Daniel Kersten, Jeremie Knuesel, Owen Lewis, William W. Lytton, Tomaso Poggio, John Porrill, Tony J. Prescott, John Rinzel, Edmund Rolls, Jonathan Rubin, Nicolas Schweighofer, Mohamed A. Sherif, Malle A. Tagamets, Paul F. M. J. Verschure, Nathan Vierling-Claasen, Xiao-Jing Wang, Christopher Williams, Ransom Winder, Alan L. Yuille
Download or read book Contextual Modulations of Visual Perception and Visual Cortex Activity in Humans written by Benjamin De Haas and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brain and Visual Perception written by David H. Hubel M.D. and published by Oxford University Press. This book was released on 2004-10-14 with total page 739 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the story of a hugely successful and enjoyable 25-year collaboration between two scientists who set out to learn how the brain deals with the signals it receives from the two eyes. Their work opened up a new area of brain research that led to their receiving the Nobel Prize in 1981. The book contains their major papers from 1959 to 1981, each preceded and followed by comments telling how and why the authors went about the study, how the work was received, and what has happened since. It begins with short autobiographies of both men, and describes the state of the field when they started. It is intended not only for neurobiologists, but for anyone interested in how the brain works-biologists, psychologists, philosophers, physicists, historians of science, and students at all levels from high school to graduate level.
Download or read book Encyclopedia of Perception written by E. Bruce Goldstein and published by SAGE. This book was released on 2010 with total page 1281 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of the ease with which we perceive, many people see perception as something that "just happens." However, even seemingly simple perceptual experiences involve complex underlying mechanisms, which are often hidden from our conscious experience. These mechanisms are being investigated by researchers and theorists in fields such as psychology, cognitive science, neuroscience, computer science, and philosophy. A few examples of the questions posed by these investigations are, What do infants perceive? How does perception develop? What do perceptual disorders reveal about normal functioning? How can information from one sense, such as hearing, be affected by information from another sense, such as vision? How is the information from all of our senses combined to result in our perception of a coherent environment? What are some practical outcomes of basic research in perception? These are just a few of the questions this encyclopedia will consider, as it presents a comprehensive overview of the field of perception for students, researchers, and professionals in psychology, the cognitive sciences, neuroscience, and related medical disciplines such as neurology and ophthalmology.
Download or read book Coding of Multivariate Stimuli and Contextual Interactions in the Visual Cortex written by Sander Wessel Keemink and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
