The study shows that the wireless system transmitted signals with virtually the same fidelity accuracy as wired systems. And participants achieve similar point-and-click accuracy and typing speeds.
The BCI used in the study was first developed at Brown in the lab of Arto Nurmikko, a professor in Brown’s School of Engineering.
The transmitters are approximately 2 inches. And they weigh a little over 1.5 ounces. The unit sits on top of a user’s head. And it connects to an electrode array within the brain’s motor cortex. It uses the same port previously used by wired systems.
The Nueralink BCI is totally implanted as a computer chip. The Braingate Brown Wireless Device (BWD), is attached to the top of the head. The BWD transmits high-fidelity signals while drawing low power. Two linked devices recorded neural signals at 48 megabits per second from 200 electrodes. The battery life is over 36 hours.
The latest Braingate study demonstrates new possibilities for trial participants with paralysis. The participants, a 35-year-old man, and a 63-year-old man were using the system in their homes.
