"But Cracked," you say, "surely that means nothing? Some wacky doctors playing with lab rats are light years away from any actual, tangible results on humans." Good thing, then, that one Dr. Merel Kindt and her team from Amsterdam University -- Amsterdam having no shortage of people with memories of the "Oh fuck, what did I do last night?" variety -- have already performed memory drug tests on human subjects.
Their project has dealt exclusively with dampening bad memories. Naturally, scientists being scientists, they first artificially created said memories with a slightly serial killer-y method of electric shocks and pictures of spiders, but still -- they managed to tamper that very specific fear-memory back into obscurity, so it's probably OK.
"What a curious little creat- OH MY GOD, IT'S GOT MY HAND!"
It is, by the way, worth noting that most every scientist with some degree of know-how on the subject says the memory alteration process can be used for both erasing and enhancing memories. And they have been dealing exclusively with shitty memories. Keep that in mind when you place your bets on whether Dr. Kindt is on the receiving end of a Nobel Prize or if we're witnessing the origin story of the real life version of Scarecrow here.