A custom brain implant lifted a woman’s severe depression

A personalized brain implant eased the crushing symptoms of a woman’s severe depression, allowing her to once again see the beauty of the world. “It’s like my lens on the world changed,” said Sarah, the research volunteer who requested to be identified by her first name only.

The technology, described October 4 in Nature Medicine, brings researchers closer to understanding how to detect and change brain activity in ultraprecise ways (SN: 2/10/19).

The device was bespoke; it was built specifically for Sarah’s brain. The details of the new system may not work as a treatment for many other people, says Alik Widge, a psychiatrist and neural engineer at the

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