perception

Since leptin is released by fat cells, scientists believe its presence in the blood is likely to signal to the brain that the animal is in an environment where food is ample and there’s no need to conserve energy. The new work suggests…

By washing through the brain, neuromodulators “allow you to govern the excitability of a large region of the brain more or less in the same way or at the same time,” said Eve Marder, a neuroscientist at Brandeis University widely…

A mosquito watches you through a lattice of microscopic lenses. You stare back, fly swatter in hand, closely tracking the bloodsucker with your humble single-lens eyes. But it turns out that the way you see each other—and the world—may…