Reported on CBS - KCAL 2 news in Los Angeles http://cbs2.com/ on January 30, during surgery on an obese man, the surgeons were working with electrodes in his brain, and by stimulating a different part of the man's brain, suddenly unlocked lost memories, which increased as they increased stimulation. Research is now being done on 6 Alzheimer's patients to continue testing the viability of using electricity to assist in reversal of memory loss. Naturally, it is a very invasive procedure and the study is in its earliest stages.
Here is the link to the video news story. Not sure how long it will take you to this video, but very interesting!
http://cbs2.com/video/?id=58466@kcbs.dayport.com
~ Catharine Shepard / A Place For Mom