The system uses devices such as high-density electrode arrays that record neural activity directly from the brain’s surface. It also works with microelectrodes that penetrate the brain\u2019s surface and non-invasive surface electromyography sensors placed on the face to measure muscle activity. These devices tap into the brain to measure neural activity, which the AI then learns to transform into the sounds of the patient’s voice.\u00a0<\/p>\n

The neuroprosthesis samples neural data from the brain’s motor cortex, the area controlling speech production, and AI decodes that data into speech. According to study co-lead author Cheol Jun Cho, the neuroprosthesis intercepts signals where the thought is translated into articulation and, in the middle of that, motor control.<\/p>\n