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Physiology of Photoreceptor Organs (Paperback, Softcover reprint of the original 1st ed. 1972)
Loot Price: R4,683
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Physiology of Photoreceptor Organs (Paperback, Softcover reprint of the original 1st ed. 1972)
Series: Handbook of Sensory Physiology, 7 / 2
Expected to ship within 10 - 15 working days
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This volume is a collection of essays which attempts to summarize
the recent progress in the field of photoreceptor and retinal
physiology. Reflecting the way in which research is organized, each
author reports on the studies performed with the techniques with
which he is most familiar: morpholo gical, chemical or
physiological. The first chapters describe the structure of visual
cells and the histological architecture of the retina. Next comes a
summary of the laws governing photochemical reactions and a report
on the biochemistry of photopigments. Four articles cover the
optical properties of invertebrate eyes and the electrophysiology
and the interactions of their photoreceptors. These are followed by
a discussion of the properties of vertebrate eyes, including
chapters on optics, on the electrical responses of rods and cones
and on the functional organization of the retina. The final chapter
provides an extensive review of retinal biochemistry and
metabolism. Even though the experimental approach differs, all
studies are directed toward the solution of two basic problems:
transduction in the photoreceptors and orga nization (often called
"information processing") in the retina. The central problem of
photoreceptor cells is to determine how light produces a response.
We know that illumination evokes electrical changes and we have
recently learned a great deal about the features of these changes.
The evidence indicates however that elaborate processes must be
interposed between the ab sorption of photons by the pigment and
the production of electric currents through the membrane. These
intermediary cvents remain to be unraveled."
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