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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 | Normann, Richard A. | Background and bleaching adaptation in luminosity type horizontal cells in the isolated turtle retina | 1. The effects of background illumination and bleached photopigment on luminosity type horizontal cells were studied in the isolated turtle retina. 2. Background illumination, which produced less than 60% bleaching, hyperpolarized and desensitized the horizontal cells to a degree which depended upon... | Turtles; Retina; Photoreceptors; Bleached photopigment; Dark Adaptation | 1990 |
| 2 |
 | Normann, Richard A.; Kolb, Helga | Neural organization of the retina of the turtle Mauremys caspica: a light microscope and Golgi study | The organization of the retina of the turtle species Mauremys caspica, found in fresh water ponds of Israel, has been examined by light microscopical techniques including examination of fresh wholemount retina, one micron blue-stained vertical sections and Golgi-stained material. The anatomical find... | Turtle Retina; Photoreceptors; Golgi Technique; Amarcine Cells | 1988 |
| 3 |
 | Frederick, Jeanne M. | Neurotransmitter properties of the newborn human retina. | Human retinal tissue from a newborn was examined autoradiographically for the presence of highaffinity uptake and localization of the following putative neurotransmitters: dopamine, glycine, GAB A, aspartate, and glutamate. In addition, the dopamine content of this newborn retina was measured by ... | Newborn; Human Retina; Neurotransmitter Properties; Photoreceptors | 1983 |
| 4 |
 | Normann, Richard A. | Oscillations in rod and horizontal cell membrane potential: evidence for feed-back to rods in the vertebrate retina | 1. Rods and horizontal cells were studied with intracellular recordings in the retina of the toad, Bufo marinus; 161 cells were from the eyecup preparation and thirty were from the isolated perfused retina. 2. Of these cells, 39% exhibited either transient or sustained oscillations of membrane poten... | Retina; Photoreceptors; Toads; Adaptation, Ocular | 1976 |
| 5 |
 | Normann, Richard A. | Signal transmission from red cones to horizontal cells in the turtle retina | 1. Intracellular recordings were made from L-type horizontal cells in the retina of the turtle Pseudemys scripta elegans. The responses were evoked by 500 msec pulses of 'white' light. 2. L-type horizontal cells were classified as either, 'small receptive field' s.r.f. or 'large receptive field' l.r... | Turtles; Synapses; Retina; Photoreceptors | 1979 |
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