Video: False Memories Implanted in Mice

Tinkering with the brains of mice,

The mice were put in a chamber where they experienced foot shocks, causing them to freeze in fear. The animals learned to associate the shocks with the chamber, forming a fear memory. Then the researchers put the mice in a different chamber, and shone a blue light on the cells that encoded the foot-shock memory. The animals reacted as fearfully as if they were in the first chamber.

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