A dataset to play with.
Just for fun, I captured a couple of minutes of electrical activity into a text file, which is suitable for running through nia_eeg_chart.py. I wasn't doing a whole lot, just listening to a podcast and flipping between e-mail and Firefox tabs, so it's not terribly interesting stuff. Either I'm more brainless than usual when browsing the Web, or it says something about exchanging one way of turning your mind off (television) for another (too many websites to keep track of at once).
Anyway, have some fun with that data set if you like.