The Brain Uses Calculus to Control Fast Movements
Researchers discover that to sharpen its control over precise maneuvers, the brain uses comparisons between control signals—not the signals themselves. The post The Brain Uses Calculus to Control Fast Movements appeared first on Nautilus.
A mouse is running on a treadmill embedded in a virtual reality corridor. In its mind’s eye, it sees itself scurrying down a tunnel with a distinctive pattern of lights ahead. Through training, the mouse has learned that if it stops at the lights and holds that position for 1.5 seconds, it will receive a reward—a small drink of water. Then it can rush to another set of lights to receive another reward.
This setup is the basis for research in by the neuroscientists , , and of the Massachusetts Institute of Technology. It explores a simple question: How does the brain—in mice, humans, and other mammals—work quickly enough to stop us on a dime? The new work reveals that
