Quote (chiefwiggum654 @ Tue, Dec 30 2008, 11:30pm)
Well, as far as I know your memory kinda has both RAM and a hard drive, as short term and long term memory, respectively.
During sleep, the thinking goes, neurons in the hippocampus fire, driving a transfer of its information to the neocortex, the top layer of the cerebrum that serves as the brain's hard disk, or permanent storage bin.
Dimming memories while they are being converted from short-term to long-term, of course, is very possible now (don't bogart that joint!) - but it works because the general process of forming long-term memories is what is being interfered with.
In general, to address existing long-term memories will probably require computer-brain interfacing at a high semantic level to be done right. This is because such memories are entangled with the rest of the personality, and affect/cause other actions/memories to happen/be formed. So they would have to be edited, substitute false memories implanted, the storyline be made consistent, etc. Not simple. We have a long way to go untill such control could be exercised. Hopefully never..