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#fMRI "#brain #scanning" is usually used to identify human brain regions associated with particular abilities by measuring brain activity during task performance. A relatively new effort instead seeks to understand whether fMRI can be used to understand differences in brains "at rest" (while no particular task is being performed), the "#restingstate". This is no easy task: even at rest, the brain is engaged in various tasks; how can one pick out a particular thing of interest amidst all that? This work demonstrates that resting state activity can predict performance on a subsequent #learning task, thus demonstrating the feasibility of measuring the resting state using fMRI. A big step. #science #neuroscience #jneurosci http://www.jneurosci.org/content/33/22/9295.short

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Eating foods with high #glycemic load (#carbs) causes #bloodsugar to spike and then rapidly decrease. One consequence is a more rapid return of #hunger compared to lower glycemic load foods. This work shows that the #brain area #nucleusaccumbens, known to be involved in signaling #reward in general, may be involved in these #postprandial hunger/bloodsugar dynamics, suggesting that such hunger increases may represent a kind of "reward seeking" behavior. #science #nutrition #neuroscience. #nytimes via #ajcn http://ajcn.nutrition.org/content/early/2013/06/26/ajcn.113.064113.abstract

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#bananas are often cited as being a great #dietary source of #potassium, which they clearly are. However, ranking several common fruits by their potassium content per calorie, one can see that the #peach reigns supreme, while banana are relegated to 3rd place behind the #strawberry. To put it another way, eating an equivalent amount of fruit in terms of calories, peaches will provide the most potassium. #FYI #science #data.

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Unlike other #movements we make in which #energy is stored and released (#running, #jumping), overhand throwing does not #stretch a long #tendon. This is #puzzling since it begs the question of how we are able to #throw so hard (it's also not #muscle strength). A #novel new interpretation is that we store energy in our "cocked" #shoulder. #biomechanics #science. #nytimes via #nature. http://www.nature.com/nature/journal/v498/n7455/full/nature12267.html

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Highest resolution #brain images ever obtained. Post mortem processing of this donated tissue allows for better #anatomical definitions and is a boon to neuroscientists everywhere. #science #meuroscience. #nytimes via #sciencemagazine http://www.sciencemag.org/content/340/6139/1472.full

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By counting #carbon #isotopes (created by #nuclear testing) in #neurons, it has been shown that 1400 new neurons are added to the adult #hippocampus each day resulting in 1.75% turnover per year. #science #neuroscience. #cell via #sciencemagazine http://www.sciencedirect.com/science/article/pii/S0092867413005333

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At least in #diabetics, the #resperate #biofeedback device does not offer a #drugfree path to lowering high #bloodpressure (#hypertension). #jama via #nytimes. #science #medicine http://archinte.jamanetwork.com/article.aspx?articleid=1696186

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For the first time, scientists have collected #velocity, #acceleration, and #position data from #wild #cheetahs while #hunting. These data show that they rarely get up to #topspeed and instead rely on #maneuvering to catch prey. #nature via #nytimes. #science #animalbehavior http://www.nature.com/nature/journal/v498/n7453/full/nature12295.html