NEW YORK — In the film "Eternal Sunshine of the Spotless Mind," the characters undergo a scientific procedure to erase their memory. But what if instead of erasing memory, you could restore it? One neuroscientist aims to do just that.
Theodore Berger of the University of Southern California is developing a prosthesis to restore memory, by replacing a circuit in the brain's hippocampus. Berger described the device at the Global Future 2045 International Congress, held here June 15-16. Already successful in rats and monkeys, the prosthesis is now being tested in humans.
Memory machine
The hippocampus, a brain structure tucked deep in the brain's temporal lobe, converts short-term memories to long-term ones. Epilepsy or other neurological disorders can damage the hippocampus, preventing a person from retaining new memories. [5 Crazy Technologies That Are Revolutionizing Biotech]
The device Berger and his colleagues are developing could replace parts of a damaged hippocampus, and even enhance an intact one. A tiny chip of electrodes implanted in the hippocampus records signals representing a short-term memory; the signals are sent to a computer that mathematically transforms them into a long-term memory; and signals representing the long-term memory are sent to a second set of electrodes that stimulates another layer of the hippocampus.
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