**Dr. Frank Guenther** explains some basics about the complexity of both normal speech and speech disorders such as stuttering. He also discusses his work on a brain-computer-interface system that aims to make communication possible for patients with locked-in syndrome, and his work on the leading computational model (DIVA) for speech production.
Frank Guenther is professor of speech language, & hearing sciences and biomedical engineering at Boston University. His research combines theoretical modeling with behavioral and neuroimaging experiments to characterize the neural computations underlying speech. He is the originator of the DIVA model, which provides a quantitative account of the neural computations underlying speech motor control and their breakdown in communication disorders such as stuttering and apraxia of speech. He also develops brain-machine interfaces to restore speech communication to individuals suffering from locked-in syndrome, characterized by complete paralysis with intact cognition.