Hereditary blindness caused by a progressive degeneration of the light-sensing cells in the eye, the photoreceptors, affects millions of people worldwide. Although the light-sensing cells are lost, cells in deeper layers ...
May 7, 2015
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Electrical signals tell the heart to contract, but when the signals form spiral waves, they can lead to dangerous cardiac events like tachycardia and fibrillation. Researchers at the Georgia Institute of Technology and clinicians ...
Sep 8, 2022
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Dopamine is an important signaling molecule for nerve cells. Its concentration could not be precisely determined with both high spatial or temporal resolution until now. A new method has now made this possible: A research ...
May 27, 2022
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To date, chip-based retinal implants have only permitted a rudimentary restoration of vision. However, modifying the electrical signals emitted by the implants could change that. This is the conclusion of the initial published ...
May 11, 2015
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In a study recently published in Advanced Biomedical Engineering, researchers at Okayama University report a thin photoelectric film which can stimulate degenerated retinal tissues of the eye.
Jul 29, 2019
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Atrial fibrillation—a form of irregular heartbeat, or arrhythmia—leads to more than 454,000 hospitalizations and nearly 160,000 deaths in the United States each year. Globally, it is estimated that approximately 60 million ...
Oct 27, 2022
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It's a well-established fact that every cell in your body responds to physical touch. They don't all react in exactly the same way—a cell in your spleen won't jump like a frightened cat if it gets poked by a needle. But ...
Feb 24, 2023
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On the road at night or on a tennis court at dusk, the eye can be deceived. Vision is not as sharp as in the light of day, and detecting a bicyclist on the road or a careening tennis ball can be tough.
Oct 17, 2012
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(Medical Xpress)—Chemists and vision scientists at the University of Illinois at Chicago have designed a light-sensitive molecule that can stimulate a neural response in cells of the retina and brain—a possible first ...
Nov 14, 2012
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If human eyes came in a package, it would have to be labeled "Natural product. Some variation may occur." Because the million-plus retinal ganglion cells that send signals to the human brain for interpretation don't all perform ...
Sep 15, 2020
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