Word: retina
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Dates: during 1990-1999
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...scientists could eavesdrop on the brain of a human embryo 10, maybe 12 weeks after conception, they would hear an astonishing racket. Inside the womb, long before light first strikes the retina of the eye or the earliest dreamy images flicker through the cortex, nerve cells in the developing brain crackle with purposeful activity. Like teenagers with telephones, cells in one neighborhood of the brain are calling friends in another, and these cells are calling their friends, and they keep calling one another over and over again, "almost," says neurobiologist Carla Shatz of the University of California, Berkeley...
...University of California at San Francisco. What sorts out the mess, scientists have established, is neural activity. In a series of experiments viewed as classics by scientists in the field, Berkeley's Shatz chemically blocked neural activity in embryonic cats. The result? The axons that connect neurons in the retina of the eye to the brain never formed the left eye-right eye geometry needed to support vision...
Gund, who has been blind since 1970, began losing his sight in his late 20s because of a degenerative disease of the retina with no known cure. Since then, the Gunds have been active in funding research for a cure...
...true: smoke does get in your eyes. A pack or more a day of cigarettes can double a smoker's odds of developing macular degeneration, a disease of the retina that can lead to blindness. SMOKING depletes the body of vital nutrients that may protect eyes from the disease...
...professional liar or a power fetishist--to go into politics in the first place.The conventional rules of hypocrisy have been modernized by the principles of television--life as a continuously temporary hallucination. Just as an image on the screen five minutes ago is only a memory on the retina and has no necessary connection to the image on the screen right now, so a politician's moral position five minutes ago, or five years ago, does not have to conform to his opinion now. History as recorded by television is like Heraclitus' river: You cannot step in the same stream...