imagine inplugging your blackberry, ipod, laptop, everything digital in your life and going on a wilderness trip. that's what five neuroscientists did. to study the way technology changes the way we think and behave. david strayer organized the strip. and art kramer, professor of psychology at the university of illinois. i'm really fascinated by this story. david, you decided to take five neuroscientists on a trip and unplug, as far as i could tell from all technology for five days. what was your conclusion at the end of all this? is technology somehow making us dumber? >> well, you know, it was really kind of an experiment to see what would happen when we kind of got unplugged for a little while. there's a lot of literature, if