AI Just Learned How to Boost the Brain's Memory
in Wired By Robbie Gonzalez
Researchers at the University of Pennsylvania have demonstrated how machine-learning algorithms can decode and augment human memory by triggering the delivery of precisely timed pulses of electricity to the brain. "We're using it to build...something that can look at electrical activity and say whether the brain is in a state that's conducive to learning," says University of Pennsylvania professor Michael Kahana. The project involved 25 epilepsy patients with electrodes implanted in their brain, which were used to record high-resolution brain activity during memory tasks. From the training data the team built algorithms that predicted which words in a list each patient would likely recall based solely on their electrode activity. "A closed-loop system lets us record the state of the subject's brain, analyze it, and decide whether to trigger a stimulation, all in a few hundred milliseconds," Kahana says. He notes the system improved patients' ability to remember words by an average of 15 percent. ....
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