An anonymous reader writes
"Scotsman.com is reporting that Harvard Medical researchers may have found the neurons, or brain cells, that play a role in a persons ability to choose between different items. From the article: 'Scientists have known that cells in different parts of the brain react to attributes such as color, taste or quantity. Dr Camillo Padaoa-Schioppa and John Assad, an associate professor of neurobiology, found neurons involved in assigning values that help people to make choices.'"
