ECoG sensors were placed on brain areas responsible for the motor production of words, controlling the lips, jaw, larynx, and tongue, which were functionally disconnected due to a brainstem stroke.

“And so um um we did the surgery about uh three weeks later. We started our research sessions with her. We connected the uh cable. It's basically an HDMI cable that is attached to a head stage. The head stage transforms the analog signals from her brain. These are a small voltage. At the same time that we're doing all of this research, Peter AI is developing in parallel. All of these tools that we now are using every day, transcribing our voice right now into text, um, we use that technology. We can actually use those same technologies that generate voices called, uh, uh, speech synthesis. And so we've used a lot of the same tools, machine learning tools that are in modern day AIs and we're”