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Controlling Brains With a Flick of a Light Switch

Mice are naturally fearful of exploring open spaces, where they are vulnerable to predators. When placed in Tye’s four-armed maze, they would spend most of their time in the two arms protected by high walls, occasionally poking a nose out to explore. But when Tye switched on the light and activated the circuit in her subject’s brain, the mouse ventured out, exploring the open part of the maze with no visible anxiety.
posted by latkes on Oct 2, 2012 - 11 comments

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