The Retina: An Approachable Part of the Brain

The Retina An Approachable Part of the Brain John Dowling s The Retina published in quickly became the most widely recognized introduction to the structure and function of retinal cells In this Revised Edition Dowling draws on twenty fiv

  • Title: The Retina: An Approachable Part of the Brain
  • Author: John E. Dowling
  • ISBN: 9780674766808
  • Page: 365
  • Format: Hardcover
  • John Dowling s The Retina, published in 1987, quickly became the most widely recognized introduction to the structure and function of retinal cells In this Revised Edition, Dowling draws on twenty five years of new research to produce an interdisciplinary synthesis focused on how retinal function contributes to our understanding of brain mechanisms.The retina is a partJohn Dowling s The Retina, published in 1987, quickly became the most widely recognized introduction to the structure and function of retinal cells In this Revised Edition, Dowling draws on twenty five years of new research to produce an interdisciplinary synthesis focused on how retinal function contributes to our understanding of brain mechanisms.The retina is a part of the brain pushed out into the eye during development It retains many characteristics of other brain regions and hence has yielded significant insights on brain mechanisms Visual processing begins there as a result of neuronal interactions in two synaptic layers that initiate an analysis of space, color, and movement In humans, visual signals from 126 million photoreceptors funnel down to one million ganglion cells that convey at least a dozen representations of a visual scene to higher brain regions.The Revised Edition calls attention to general principles applicable to all vertebrate retinas, while showing how the visual needs of different animals are reflected in their retinal variations It includes completely new chapters on color vision and retinal degenerations and genetics, as well as sections on retinal development and visual pigment biochemistry, and presents the latest knowledge and theories on how the retina is organized anatomically, physiologically, and pharmacologically.The clarity of writing and illustration that made The Retina a book of choice for a quarter century among graduate students, postdoctoral fellows, vision researchers, and teachers of upper level courses on vision is retained in Dowling s new easy to read Revised Edition.

    Retina Function, Anatomy Anatomy Body Maps Retina It is located near the optic nerve The purpose of the retina is to receive light that the lens has focused, convert the light into neural signals, and send these signals on to the brain for visual recognition The retina processes light through a layer of photoreceptor cells. retina Definition, Function, Facts Britannica Retina Light sensitive molecules in the rods and cones react to specific wavelengths of light and trigger nerve impulses Complex interconnections synapses between and within retinal cell layers assemble these impulses into a coherent pattern, which in turn is carried through the optic nerve to the visual centres of the brain, Retina The Retina of the Human Eye Georgia State University The Retina The retina is a light sensitive layer at the back of the eye that covers about percent of its interior surface Photosensitive cells called rods and cones in the retina convert incident light energy into signals that are carried to the brain by the optic nerve. The Retina Neuroscience NCBI Bookshelf Despite its peripheral location, the retina or neural portion of the eye, is actually part of the central nervous system During development, the retina forms as an outpocketing of the diencephalon, called the optic vesicle, which undergoes invagination to form the optic cup Figure . see also Chapter The inner wall of the optic cup gives rise to the retina, while the outer wall gives Retina Definition and Detailed Illustration Retina Definition The retina is the sensory membrane that lines the inner surface of the back of the eyeball It s composed of several layers, including one that contains specialized cells called photoreceptors Light rays are focused by the cornea and lens onto the retina, where vision begins.

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