Yale cognitive neuroscientist Nick Turk-Browne works with a baby and parent during a brain scan. 160/90 hide caption
cognitive science
Workers try to remove some of the 11 million gallons of oil spilled by the Exxon Valdez off Alaska in 1989. The ship's third mate may have been up for 18 hours before the accident. Rob Stapleton/AP hide caption
An Apple employee explains the features of the new iMac, including its Retina 5K display. Marcio Jose Sanchez/AP hide caption
Study participants were trained in practical reasoning skills like managing medications. Jorge Salcedo/iStockphoto hide caption
Playing this game won't make you feel older, unless you're already getting up there in age. iStockphoto.com hide caption
Strenuous mental exercise like reading difficult books, solving tricky math problems — or, maybe, playing the right video game — can help keep a healthy brain sharp, research suggests. Images.com/Corbis hide caption