Scientists can implant false memories into mice

"False memories have been implanted into mice, scientists say.

A team was able to make the mice wrongly associate a benign environment with a previous unpleasant experience from different surroundings.

The researchers conditioned a network of neurons to respond to light, making the mice recall the unpleasant environment."

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Full article:

http://www.bbc.co.uk/news/science-environment-23447600