University of California, San Diego neurobiologists have uncovered evidence that sheds light on the long-standing mystery of how the brain makes sense of the information contained in electrical impulses sent to it by millions of neurons from the body. In a paper published this week in the early on-line version of the journal Nature, a UCSD team led by Massimo Scanziani explains how neurons, or nerve cells, in the brain sort out information before deciding how to respond. The paper will appear in a forthcoming print issue of Nature.