Beyond Movement: Real-Time Cognitive BCIs for Mood and Thought

A Mount Sinai perspective argues that the next frontier for brain-computer interfaces is cognitive BCIs that decode distributed brain networks and use adaptive neuromodulation in closed loops to detect and treat emerging psychiatric states (depression, anxiety, PTSD, OCD) in real time. The approach combines existing hardware—intracranial recording, adaptive deep brain stimulation, and high-resolution neurochemical sensing—and requires merging reading and writing into a single system, plus cross-sector collaboration to translate into clinical therapies. The market potential is large because psychiatric and cognitive conditions affect far more people than paralysis, motivating renewed academic, startup, and regulatory efforts.