A team of scientists from the United States and China announced last week that, for the first time, they had found a means of selectively and safely erasing memories in mice, using the signalling molecule αCaMKII. It's a big step forward, and one that will be of considerable interest to the military, which has devoted efforts to memory manipulation as a means of treating post-traumatic stress disorder. But some military research has moved in another direction entirely.
In the 1980s, researchers found that even low-level exposure to a beam of electrons caused rats to forget what had just happened to them (an effect known as retrograde amnesia — the other version, anteretrograde amnesia, is when you can't form new memories). The same effect was also achieved with X-rays. The time factor was not large — it only caused memory loss about the previous four seconds — but the effect was intriguing.
Danger Room from Wired.com
