Does this exist somewhere that isn't behind a paywall? Or better yet...is there a good description anywhere of the methods used for the relative layman?

Edit: Ok I've been snooping around for articles on this and so far I've found these:

http://arstechnica.com/science/news/2011/03/the-memory-virus...

http://www.physorg.com/news/2011-03-enzyme-erases-long-term-...

http://www.nih.gov/news/health/mar2011/nimh-03.htm

http://www.sciencenews.org/view/generic/id/70519/title/Enzym...