Brain HealthHow Your Brain Builds Speech and What Happens When It Breaks Down
Neurosurgeon Dr. Eddie Chang joins the Huberman Lab to explain how the brain orchestrates the remarkably complex act of speech — from controlling the larynx and vocal folds to shaping breath into language. He discusses his groundbreaking BRAVO trial, in which electrode arrays implanted in paralyzed patients' brains decode neural activity into spoken words and even avatar-driven facial expressions. The conversation covers the neurobiology of stuttering, the role of auditory feedback in fluent speech, and the ethical questions surrounding brain-machine interfaces like Neuralink. For anyone interested in brain health and neurological rehabilitation, this episode offers rare insight into cutting-edge neuroscience that is actively restoring communication to people with ALS, brainstem strokes, and locked-in syndrome.
