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Cortically controlled neuroprostheses have long been posited as the “holy grail” for intracortical brain-machine interfaces (BMIs). The efficacy of BMIs has advanced to the point where a small number of laboratories around the US are now involved in BMI trials involving human participants with chronic paralysis. As part of the Braingate2 Clinical Trial, and the newly established ReHAB Clinical Trial, we at Case Western Reserve University are investigating using BMIs to control Functional Electrical Stimulation (FES) systems for restoring functional arm movements to persons with chronic high cervical spinal cord injury. This lecture will highlight a number of our clinical, technological, and scientific advances towards developing a BMI controlled FES arm neuroprosthesis. Additionally, this lecture will discuss use of human BMI systems as a platform for answering fundamental questions of human sensorimotor control, including underlying mechanisms of motor performance and learning, and internal representations of kinetic, kinematic, and sensory parameters. Finally, this lecture will discuss the establishment and goals of the new RE-HAB clinical trial, and subsequent steps towards development of chronically implanted clinically viable BMI neuroprosthetic systems.

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