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Science

Forgetting May be Part of the Remembering Process 191

CFTM writes "The New York Times is running an interesting article about how human memory works and the theorized adaptive nature of forgetfulness". From the article, "Whether drawing a mental blank on a new A.T.M. password, a favorite recipe or an old boyfriend, people have ample opportunity every day to curse their own forgetfulness. But forgetting is also a blessing, and researchers reported on Sunday that the ability to block certain memories reduces the demands on the brain when it is trying to recall something important. The study, appearing in the journal Nature Neuroscience, is the first to record visual images of people's brains as they suppress distracting memories. The more efficiently that study participants were tuning out irrelevant words during a word-memorization test, the sharper the drop in activity in areas of their brains involved in recollection. Accurate remembering became easier, in terms of the energy required."
Biotech

Skin Cells Turned Embryonic 261

anik315 writes "Nature is reporting a major breakthrough in embryonic stem cell research. A straightforward procedure using mouse fibroblasts harvested from the skin can be used to produce pluripotent stem cells that can potentially become any other cell in the body. Not only can Yamanaka's method use the most basic cells, it can be accomplished with simple lab techniques. Possible applications of this breakthrough are to check molecular changes in cells as certain conditions develop. Stem cells produced using this procedure, however, can not be used safely to make genetically matched cells for transplant."
Biotech

Controlling Computers With the Brain 253

Killam0n takes note of a story in CNN Money on progress in controlling computers via brainwaves. From an aspirin-sized implant a quadriplegic is now using to play computer games, the article extrapolates out to a near future in which we will all be wearing headband computers and IM'ing one another as if telepathically. "Two years ago, a quadriplegic man started playing video games using his brain as a controller. That may just sound like fun and games for the unfortunate, but really, it spells the beginning of a radical change in how we interact with computers — and business will never be the same. Someday, keyboards and computer mice will be remembered only as medieval-style torture devices for the wrists. All work — emails, spreadsheets, and Google searches — will be performed by mind control."

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