Elena took a deep breath and checked her ground electrode. It had slipped. She pressed the adhesive back onto her skin, feeling the cool gel, and watched the screen. Suddenly, the jagged static smoothed into a steady line. She flexed her hand. A sharp, rhythmic burst of waves spiked across the display—a perfect, unfiltered signature of human intent.
: The study of sensors that convert physical parameters (like blood pressure or body temperature) into electrical signals. bioe6403