Backyard Brains at TED2012 – Neuroscience kits for high school students

[Video Link] Here at TED2012 Gregory Gage of Backyard Brains showed me how to measure the electrical activity of a neuron in a cockroach leg. At around the 12:00 minute mark, Gregory pumps the electrical signal from music on his iPhone into the cockroach's leg, causing it to twitch in time with the beat. (The cockroach's leg will grow back.)