When President Obama announced his BRAIN Initiative in April, he promised to give scientists "the tools they need to get a dynamic picture of the brain in action."
An early version of one of those tools already exists, scientists say. It's a relatively new set of techniques called optogenetics that allows researchers to control the activity of brain cells using light.
People tend to hate to lose stuff they already own. This trait, known as the endowment effect, is likely handed down to us by evolution, since it is visible cross-culturally as well as in non-human primates. However, new research suggests certain cultures place a brake on this evolutionary trait, whereas capitalistic societies put it on steroids.
The nation's capital is not exactly a beach town. But the cherry-tree-lined Tidal Basin, fed by the Potomac River, laps at the steps of the Jefferson Memorial. And, especially since Superstorm Sandy, officials in Washington have a clear idea of what would happen in a worst-case storm scenario.
"The water would go across the World War II memorial, come up 17th Street," says Tony Vidal of the U.S. Army Corps of Engineers. "And there are actually three spots where the water would come up where we don't have ... a closure structure right now."
Among the things to celebrate this holiday season is the fact that there are fewer hungry people in the world. Just how many? Well, since 1965, researchers in Europe have been tracking the world's food supply and where it's going.
The good news is: The percentage of the world's population getting what the researchers say is a sufficient diet has grown from 30 percent to 61 percent.