The Quest To Quantify Our Senses:

our new sensing machines more accurately capture and analyze the microtime and microspace of our breath, heartbeat, brainwaves, muscle tension, or reaction times. But they do this for another reason. Our sensing machines now conceive and create techniques that aim to fulfill that long sought-after dream of those forgotten 19th-century researchers like Fechner and Marey: to become one with what Fechner called the animated substance of the technological world itself.