Download or read book An Analysis of Spatial Summation in the Receptive Fields of Goldfish Retinal Ganglion Cells written by Michael W. Levine and published by . This book was released on 1972 with total page 175 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 The Spatiotemporal Receptive Field Properties of Rat Retinal Ganglion Cells written by Walter Ferdinand Heine and published by . This book was released on 2011 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The function of the retina is to encode relevant features of the visual world in the form of neural spike trains. These are transmitted to higher visual centers in the brain by retinal ganglion cells (RGCs), which form the neural output of the retina. Little is known about the receptive field properties of these cells in the rat. In vivo recording techniques were used to record from RGC axons while visual stimuli were displayed on a cathode ray tube. Rats have a wide visual field and large receptive fields. In order to capture the majority of the visual field, the monitor was placed in close proximity to the eye of the animal. Visual stimulus patterns such as luminance gratings appear distorted at a close viewing distance. We therefore simulated a spherical screen with the eye at its center. Cells shared many properties with those of other species but also exhibited some notable differences. Some cells exhibited the characteristic linear and nonlinear spatial summation of cat X and Y cells and were therefore labeled as X and Y-like. More rarely encountered cell types included the suppressed by contrast and ON-OFF surround cells. In contrast to their counterparts in the cat, X and Y-like cells in the rat had similar receptive field sizes. In the temporal domain, X-like cells exhibited sustained response dynamics to square wave modulated spots. Y-like cells, on the other hand, displayed both sustained and transient response dynamics. Both cell types responded to full field stimuli by reducing their gain at low temporal frequencies and exhibiting a resonance at higher frequencies. These results question the commonly assigned roles of X-like cells in high acuity vision and Y-like cells in motion detection. Anatomical data on their morphological properties and projection pattern will provide additional insight into their possible functional roles. Photodynamic staining provides a means of targeting cells for electrophysiological recordings that display specific morphological and projection patterns. We found enhanced photodynamic staining in media supplemented with oxygen or hydrogen peroxide. This information will aid future experiments correlating the anatomical and electrophysiological properties of RGC types.

Download or read book Cumulated Index Medicus written by and published by . This book was released on 1999 with total page 1860 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Awards Index written by and published by . This book was released on 1989 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Studies on Excitation and Inhibition in the Retina written by H. Keffer Hartline and published by Rockefeller Univ. Press. This book was released on 1974 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book GROWTH RELATED CHANGES IN THE RECEPTIVE FIELDS OF RETINAL GANGLION CELLS IN THE GOLDFISH written by ALAN EDWARD MACY and published by . This book was released on 1980 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: not statistically significant. It corresponds to an increase in the average center diameter from 425 micrometers to 985 micrometers, measured on the retinal surface. This increase was statistically significant (p

Download or read book Seeing written by Karen K. De Valois and published by Academic Press. This book was released on 2000-04-28 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most remarkable things about seeing is how effortless this complex task appears to be. This book provides a comprehensive overview of research on the myriad complexities of this task. Coverage includes such classic topics as color, spatial, and binocular vision, areas that have seen a recent explosion of new information such as motion vision, image formation and sampling, and areas where new tools have allowed a better investigation into processes (e.g. neural representation of shape, visual attention).Seeing is a needed reference for researchers specializing in visual perception and is suitable for advance courses on vision.

Download or read book Research Grants Index written by National Institutes of Health (U.S.). Division of Research Grants and published by . This book was released on 1971 with total page 1362 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Latencies of the Spatial Components of the Retinal Ganglion Cell Receptive Field written by Mary Lou Mallon and published by . This book was released on 1986 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spatial Organisation of Receptive Fields in Mammalian Retinal Ganglion Cells written by Craig R. Vonhoff and published by . This book was released on 2012 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Response of the Cat Retinal Ganglion Cell written by Lawrence Henry Pinto and published by . This book was released on 1970 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Temporal Contrast Adaptation in Identified Types of Retinal Ganglion Cells written by Divya Chander and published by . This book was released on 2002 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biomedical Index to PHS supported Research written by and published by . This book was released on 1990 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vision Index written by and published by . This book was released on 1973 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: Also contains abbreviation list of serials, subject, author sections.

Download or read book Signal Transfer at the Outer Plexiform Layer of the Retina of the Tiger Salamander Ambystoma Tigrinum written by William Alan Hare and published by . This book was released on 1989 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Visual Neuroscience written by J. D. Pettigrew and published by CUP Archive. This book was released on 1986-12-18 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Visual neuroscience is the study of the way in which the -brain accomplishes sight, and this book presents overviews of a range of topics in this area. The chapters are grouped into six sections - retina, retino-geniculate connections, visual development, comparative visual physiology, visual cortex and integrative aspects - and the authors describe both their own contributions to the field, and the influence of their teacher, P.O. Bishop, on their scientific development.