Manipulating the Brain with Magnets
hackwrench points to this Boston Globe story, writing "Some guy has figured out how to use magnets to disable or enhance part of the brain." And this is on a part of the science spectrum not occupied by Alex Chiu.
Here's a story on the same researcher from 4 years ago.
Oh and by the way, the 3000 volts / 8000 amps is to power the magnet; the brain does not get zapped!
I seem to recall Eric Wasserman giving a paper on this in 1996 or thereabouts.
There is actually a lot of stuff on this floating around the 'net, as you would expect of a technology that is that old.
Some discussions in more depth can be found here, written for a general audience, and herehere for those who want more meat.
Free book: Science Toys You Can Make
My first thought was the "read/write" MRIs featured in Vinge's _A Deepness In The Sky_.
I forget what 8 was for.