Researchers at Stanford University have created a brain implant that could restore damaged areas of the brain and help people relearn how to read, write, remember and perform other cognitive functions after suffering a traumatic brain injury. Judging by the test results, it really works, and two of the research participants even refused to stop the experiment.

The implant was tested on five people with traumatic brain injuries, all of whom had cognitive problems. For example, with concentration, the ability to read or remember information. Each such function is responsible for its own area of ​​neurons in the brain. The implant stimulates these areas with electrical signals and allows them to work more actively. To know which area to stimulate, before the experiment, each participant was examined and received an individual version of the device.

As a result, after a 90-day treatment with daily activation of the implant for 12 hours a day, participants showed an average improvement in thinking speed of 32%. For example, one of the participants, Gina Arata, who was injured in a traffic accident, noted an improvement in memory, coordination and emotional regulation.

“It’s like having the lights dimmed in a room and there just isn’t enough electricity to turn them back on,” explains neurosurgery professor Jamie Henderson.

The success of the therapy was so convincing that scientists encountered difficulties during its final phase. During the experiment, three random participants had to have their implants turned off. But two patients categorically refused this, citing the “perceived benefit” they received from the experiment.