Basic concepts and types
2 termsA direct communication pathway between the brain's neural activity and an external device. It functions by recording brain signals (often through electrodes), decoding those signals into commands using computer algorithms, and executing those commands to control a machine or prosthetic, often providing sensory feedback to the user to create a closed-loop system.
A brain-computer interface is a system that measures brain activity and converts it in (nearly) real-time into functionally useful outputs to replace, restore, enhance, supplement, and/or improve the natural outputs of the brain, thereby changing the ongoing interactions between the brain and its external or internal environments. It may additionally modify brain activity using targeted delivery of stimuli to create functionally useful inputs to the brain.