Word: knutson
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Dates: during 2000-2009
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...June issue of the journal Nature Geoscience, Tom Knutson of the National Oceanic & Atmospheric Administration questions whether we're seeing "a really dramatic increase in Atlantic hurricane activity resulting from greenhouse warming." Quite a few of Knutson's colleagues in turn are questioning him and the computer models he's using to make this about-face. But for those of us who aren't in the eye of that scientific storm, it only raises the issue of whether predicting hurricanes is really any more reliable than forecasting earthquakes...
...data had been collected by Harvard researcher Heather A. Knutson and Assistant Professor of Astronomy David Charbonneau...
...Knutson agreed, saying that Barman’s analysis appears to account for some, but not all, of the color-dependent features in the data that she and Charbonneau collected from the Hubble Space Telescope last year...
...test his theory, Knutson and his team devised a way to mimic these same intuitive reactions in the lab. He gave subjects $20 each and, while they were in the fMRI machine, presented them with pictures of 80 products, each followed by a price. Subjects then had the option of purchasing each item on display. As they viewed products they preferred, Knutson saw activity in the nucleus accumbens, a region of the brain involved in anticipating pleasant outcomes. If, on the other hand, the subjects thought the price of these items was too high, there was increased activity...
...this, of course, is whirring along at the brain's split-second pace, and as imaging technology improves, Knutson is hopeful that he and others will be able to see in even more detail the circuits in the brain activated during a decision. Already, according to Montague, these images have revealed surprising things about how the brain pares down the decision-making process by setting up shortcuts to make its analysis more efficient. To save time, the brain doesn't run through the laundry list of risks, benefits and value judgments each time. Whenever it can, it relies...