Molecular and Cellular Basis of Visual AcuityS.R. Hilfer, Joel Sheffield The Seventh Symposium on Ocular and Visual Development was held in October, 1982. The aim of the meeting was to develop a broad perspective on visual acuity. The subject was discussed initially in terms of molecular events of photoreception, and the metabolism of the photoreceptor ele ments. Subsequent papers presented the development and complexity of the neurocircuitry and transmitter systems in the retina that process the visual information prior to transfer to the brain. The meeting concluded with a series of papers on behavioral and physiological methods of mea surement of visual acuity in humans, particularly young children. This volume arose from the papers presented at the meeting. We feel that the juxtaposition of research of broadly differing methodologies will be stim ulating, rather than daunting, and will generate an enhanced understand ing of this complex subject. We are indebted to our colleagues: Dr. M. Mote from Temple University, and Drs. J. Siegfried, P. Dayhaw-Barker, and L. Press from the Pennsylvania College of Optometry for their expertise and assistance in the organization of the meeting; to the speakers for their presentations and contributions to this volume; and to the reviewers of the manuscripts for their helpful comments. This symposium could not have been held without the generous support of the Temple University College of Arts and Sciences and the Pennsyl vania College of Optometry. We also thank Merck, Sharp and Dohme, Inc. for their donation. |
Contents
Control of Visual Receptor Cyclic GMP and Visual Excitation | 1 |
Circadian Rhythms in Retinal Function | 31 |
Cone Pathways in the Mammalian Retina | 55 |
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Molecular and Cellular Basis of Visual Acuity S. R. Hilfer,J. B. Sheffield No preview available - 1984 |
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accommodation adult amacrine cells Atkinson axon terminal behavioral beta cells bipolar cells bl bipolar Brecha cat retina cell dendrites cell types circadian rhythm cone bipolar contacts dark dendritic tree diopters Dobson efferent activity efferent input evoked potentials Famiglietti Fantz Figure function goldfish goldfish retina grating horizontal cells increased intracellular Karten Kolb labeling lamina latency lateral eye layer Liebman light Limulus Lond measured membrane midget bipolar monkey retina morphology neurons neuropeptides Neurosci ommatidia ommatidium Ophthal opsin optic nerve pattern peptides phospholipid photoreceptor Physiol physiological pigeon retina PL procedures preferential looking present processes protein R.B. Barlow ramify receptive field receptive field center receptor recorded response retinal cells retinular cells rhabdom rhodopsin rod outer segment shows Sokol SP immunoreactivity SP-containing spatial frequency SRIF Stell stimulus studies sublamina synaptic synthesis tested tion vertebrate retina Vision Res visual acuity visual evoked