"Recording electrodes" refer to small sensors or devices used in medical or scientific experiments to detect and measure electrical signals from the body or brain. Full definition
A brain - computer interface with recording electrodes under his skull, and a functional electrical stimulation (FES) system * activating his arm and hand, reconnect his brain to paralyzed muscles. (sciencedaily.com)
By implanting recording electrodes inside the cadavers» brains and applying TES externally, the researchers found that they needed to zap the scalp with about 4 to 6 milliamperes of current — well above typical current levels. (scientificamerican.com)
These approaches, however, restrict the maximum probe length to the thickness of the substrate and the number of recording electrodes. (sciencedaily.com)