Word: neurone
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Dates: during 2000-2009
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...time at RIKEN, Barth focused on two main experiments: one involved recording neuron firings of finches who are awake, moving, and singing; the other involved playing songs to anesthetized finches and analyzing for neural activity patterns...
This isn't the first time someone has challenged the clarity of Britain's assisted-suicide law. In a similar case eight years ago, Diane Pretty, who had motor neuron disease, wanted to know whether her husband would be prosecuted if he helped her die at home or accompanied her to an assisted-suicide clinic abroad. But the court rejected her request for clarification, and her illness took her life...
...When the team scratched the leg without first creating an artificial itch, the STT neurons fired - the normal STT-neuron response - but scratching did nothing to calm them. That demonstrates that STT nerves react differently to the sensation of a scratch when it happens in response to an existing itch. The researchers then injected a pain-producing chemical into the monkeys' legs, which also spurred the firing of STT neurons. Again scratching did nothing to calm them, suggesting that the nerve-dampening effect of scratching applies uniquely to itching, not pain...
...turn inspired researchers to think about directing these cellular blank slates to eventually replace cells that had been damaged or were depleted by disease. The key lay in finding just the right recipe of growth factors and nutrients to induce a stem cell to become a heart cell, a neuron, an insulin-making cell or something else. It would take decades, the researchers all knew, but new therapies were sure to come...
...also need a sense of touch, and it's their whiskers that do most of that work for them. What researchers never knew was precisely how elaborate that tactile system is, nor exactly how it operates. But in research that will be published in the Feb. 28 issue of Neuron, investigators at MIT have come up with an imaginative tool for finding out: high-speed video technology that works at 3,200 frames per second - approximately 100 times faster than home video. "There were hypotheses before," says Christopher Moore, member of the McGovern Institute for Brain Research...