Scientists Successfully Turn Bad Memories Into Good, Good Into Bad

August 28, 2014 2:57 AM

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Scientists Successfully Turn Bad Memories Into Good, Good Into Bad

Ever wish you could erase any one of those bad memories you’ve compiled over the years? There’s good news, if you’re a mouse at least. Scientists have successfully reversed memories from unhappy to happy (insofar as rodents feel such things) in lab mice using lasers and light-sensitive organisms to control the memory-making parts of their brains.

First, scientists from the Massachusetts Institute of Technology and the RIKEN Institute in Japan genetically engineered a group of mice with memory-making neurons sensitive to certain kinds of light. This allows scientists to use lasers to control the function of those neurons, using a process call...

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