뇌의 기억을 지운다? - 의학
뇌 기억 지우기 (의학뉴스)
And are there memories you just soon forget? Science may have come up with an eraser. This is the CBS Evening News with Katie Couric. As we get older, most of us have to work harder to remember things, you know, those senior moments. But there’re also things we’d like to forget. And now thanks to new research, scientists are starting to believe that someday there may be a way to get rid of our bad memories for good. Here’s Kelly Wallace.
Imagine erasing traumatic정신적인 충격이 큰 memories like a bomb blast during war or easing a crippling심하게 손상된 fear of heights. Researchers in Brooklyn, New York led by neuroscientist신경과학자 Dr. Todd Sector made a significant discovery about memory which could be crucial to treating post-traumatic stress disorder, addiction마약중독, and could even help with memory loss. “People for thousands of years have wanted to know what it is really going on in your brain when you recall like a childhood memory like your earliest memories. What is that really about? And I think now we have a good idea of what that might be.”
Working with rats, Dr. Sector and his team administered투여하다 a very mild shock to the animal’s feet when they entered this triangle-shaped area of a small chamber. The rats learned quickly and remembered to steer clear of..에 접근 않다 the shock area. But after their brains were injected with a simple molecule미립자 미량 called Zipped, the rats forgot about the shocks and headed right back to the danger zone.
“There is a memory eraser, because we tested in many ways to try to see if the memory ever came back when the drug were off and it never did!”
The research is in the very early stages and a long way from being tried on humans especially because researchers can’t yet erase selectively. “Right now, we are sort of like we’re wiping a hard disk clean without damaging the hard disk. But we don’t have the yet the ability to wipe out specific memories.” All of this may sound like science fictions, and while it raises profound깊은 ethical questions for use on people, scientists still say it’s a promising전도유망한 window on the brain. Kelly Wallace, CBS News, New York.