(3)In PBS Online's Probe the Brain(1) activity, use an electric probe on an exposed brain to see which part of the motor cortex is responsible for moving fingers, toes, hips, and more. (Shockwave(2) plug-in required.)

1. http://www.pbs.org/wgbh/nova/mind/probe.html
2. http://www.adobe.com/shockwave/download/
3. http://www.pbs.org/wgbh/nova/mind/probe.html