Download or read book Interference Fringes Used to Determine Retinal Ganglion Cell Receptive Field Sizes written by Charles M. Wormington and published by . This book was released on 1982 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method is presented for determining the effective diameter of retinal ganglion cell receptive field centers. Unaffected by the optics of the eye, the method involves single-unit recording of ganglion cell activity in response to drifting interference fringe patterns of various spatial frequencies. The ganglion cell response magnitude (contrast) falls off as the spatial frequency of the fringes is increased. From the spatial frequency dependence of the observed responses, the receptive field centers of the sampled X-cells were estimated to range from 6.8 to 10 micron in diameter. Suggested improvements to the technique are discussed.
Download or read book Interference Fringes Used to Determine Retinal Ganglion Cell Field Sizes written by Charles M. Wormington and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1982 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Webvision written by Helga Kolb and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neurobiology and Clinical Aspects of the Outer Retina written by M.B. Djamgoz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the cellular biology, biochemistry and physiology of photoreceptors and their interactions with the second-order neurons, bipolar and horizontal cells. The focus is upon the contributions made by these neurons to vision. Thus the basic neurobiology of the outer retina is related to the visual process, and visual defects that could arise from abnormalities in this part of the retina are highlighted in the first 16 chapters. Since all vertebrate retinas have the same basic structure and physiological plan, examples are given from a variety of species, with an emphasis upon mammals, extending to human vision. The last four chapters approach the problem from the other end. This part of the book covers a range of clinical conditions involving visual abnormalities that are due to cellular defects in the outer retina. Although the contents of this book do not represent the proceedings of a conference, the concept arose at an international symposium on 'Recent Advances in Retinal Research' which was held at the International Marine Centre in Oristano, Sardinia. We hope that the book will give a coherent, up to date review of the neurobiology and clinical aspects of the outer retina and encourage further integration of these areas. Retinal neurobiology has been an intense field of investigation for several decades. More recently, it has seen significant advances with the application of modern techniques of cell and molecular biology.
Download or read book Medicine Biology written by and published by . This book was released on 1983-01-25 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dependence of Foveal Visual Acuity on the Size of the Receptive Fields of Retinal Ganglion Cells written by Myron L. Wolbarsht and published by . This book was released on 1979 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Visual acuity is analyzed in terms of the retinal ganglion cell response to different stimuluses on the receptor matrix. The antagonism between the central and peripheral responses of the ganglion cell receptive field is shown to effect both the sensitivity profile and the Ricco field (Area X Intensity) response. The difficulties with each method of analyzing the receptive field are discussed and an experimental protocol is formulated which derives information by comparisons between the different approaches. Data is presented to show that the ganglion cell receptive fields comparison many receptors even in the portion of the retina where the visual acuity is highest. The experimental data for a similarity between ganglion cell receptive fields in the central and peripheral portions of the retina in the cat is given and compared with similar data for the monkey. (Author).
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1992-09 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1630 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Functional Decomposition of Retinal Ganglion Cell Receptive Fields written by Sören Johannes Zapp and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The retina has the fascinating ability to extract various visual features from our surroundings. This feature detection is enabled by nonlinear operations in the retinal circuitry. The nonlinear processing is in part attributed to retinal ganglion cells and to their signal integration of the presynaptic circuitry. Of particular interest are nonlinear subunits in the receptive field of ganglion cells that are thought to correspond to the excitatory inputs of presynaptic bipolar cells. As the access to bipolar cells is experimentally limited, subunits are typically inferred computationally fr...
Download or read book Government Reports Annual Index Keyword A L written by and published by . This book was released on 1983 with total page 1638 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spatial Point Patterns written by Adrian Baddeley and published by CRC Press. This book was released on 2015-11-11 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern Statistical Methodology and Software for Analyzing Spatial Point PatternsSpatial Point Patterns: Methodology and Applications with R shows scientific researchers and applied statisticians from a wide range of fields how to analyze their spatial point pattern data. Making the techniques accessible to non-mathematicians, the authors draw on th
Download or read book Visual Perception written by Lothar Spillmann and published by Elsevier. This book was released on 2012-12-02 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an interdisciplinary overview of the main facts and theories that guide contemporary research on visual perception. While the chapters cover virtually all areas of visual science, from philosophical foundations to computational algorithms, and from photoreceptor processes to neuronal networks, no attempt has been made to provide an exhaustive treatment of these topics. Rather, researchers from such diverse disciplines as psychology, neurophysiology, anatomy, and clinical vision sciences have worked together to review some of the most important correlations between perceptual phenomena and the underlying neurophysiological processes and mechanisms. The book is thus intended to serve as an advanced text for graduate students and as a guide for all vision researchers to understanding current progress outside their specialized fields of interest.ï Examines parallel processing of visual informationï Discusses links between physiologically-measured receptive fields and psychophysically-measured perceptive fieldsï Presents a spatial sampling by the retina and cortical modulesï Covers signal transduction and the sites of adaptationï Describes a single-cell analysis of attentionï Discusses computational models of vision
Download or read book Early Limits on Spatial Visual Processing written by Matthew John McMahon and published by . This book was released on 2000 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book We Know It When We See It written by Richard Masland and published by Simon and Schuster. This book was released on 2021-01-07 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spotting a face in a crowd is so easy, you take it for granted. But how you do it is one of science's great mysteries. Vision is involved in nearly a third of everything a brain does and explaining how it works reveals more than just how we see. It also tells us how the brain processes information – how it perceives, learns and remembers. In We Know It When We See It, pioneering neuroscientist Richard Masland covers everything from what happens when light hits your retina, to the increasingly sophisticated nerve nets that turn that light into knowledge, to what a computer algorithm must be able to do before it can truly be called ‘intelligent’. It is a profound yet accessible investigation into how our bodies make sense of the world.
Download or read book The Naval Medical Research Institute 1942 1962 written by Naval Medical Research Institute (U.S.) and published by . This book was released on 1966 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Neurology and Psychiatry written by and published by . This book was released on 1973 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
