What is a memory? Science writer Jonah Lehrer tells us is it’s a physical thing in the brain… not some ephemeral flash. It’s a concrete thing made of matter. And NYU neuroscientist Joe LeDoux, who studies fear memories in rats, tells us how with a one shock, one tone, and one drug injection, you can bust up this piece of matter, and prevent a rat from every making a memory. LeDoux’s research goes sci-fi, when he and his colleague Karim Nader start trying to erase memories. And Nader applies this research to humans suffering from PTSD.
Test the outer edges of what you think you know
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