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Protein that could help people erase bad memories found


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Researchers at Cambridge University have discovered a protein in the brain of mice that may act as a biomarker for malleable memories. In other words, they may be able to determine which memories we can erase and which we are, for whatever reason, stuck with.

The researchers conditioned laboratory mice by simultaneously shocking them and making a clicking noise. The mice naturally associated the sound with the shock and, thus, developed a fear response. Because the mice remembered being shocked, they associated the noise with discomfort.

The researchers then injected the mice with propranolol, a beta-blocker, and the results were shocking: nothing happened. The mice should have gained amnesia and forgotten the association between the clicking noise and being shocked, but they didn’t.


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Of all the drugs out there, this one must rank amongst the top worst drugs. Bad memories can be a great learning experience and help us to change decision making to better ones. 

Are we destined to repeat our mistakes with this drug? 

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