The British entertainer Derren Brown has caused a stir by apparently demonstrating mind control. He's not psychic, he says, but he can see into other people's brains.
"Once you understand someone else's perception of a situation," he said, "you can mentally exist inside their heads."
Of course, Brown cannot literally see into other people's brains. That would be a truly unbelievable claim, no matter how remarkable his talent. However, seeing into brains is precisely what scientists from the United States and Switzerland have recently managed to do. The neurobiologists technological breakthroughs have allowed them to see though a window into the brains of living mice, and view individual neurons in the cerebral cortex.
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