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...secret that rats - which spend much of their lives navigating narrow, often lightless passages - need more than a good sense of smell to get around. They also need a sense of touch, and it's their whiskers that do most of that work for them. What researchers never knew was precisely how elaborate that tactile system is, nor exactly how it operates. But in research that will be published in the Feb. 28 issue of Neuron, investigators at MIT have come up with an imaginative tool for finding out: high-speed video technology that works at 3,200 frames...
...Scientists already knew that similar to the way a fingertip moves across a surface, the 50 or so hairs on a rat's cheek vibrate against an object to perceive its shape and texture. The video technology revealed the fluid micromotions of the whiskers, which send signals to the brain where they're interpreted as a sensory experience. What's more, the scientists were also able to study how different kinds of whiskers transmit different kinds of sensations. Short hairs, which are located on the front of the snout, transmit higher frequencies and vibrate fastest, while longer whiskers, which...
...knew she had never crossed the line into adult entertainment —at least not for a family event...
...dancing by myself could be this much fun?” So, next time, can I expect to see you rocking the feathered top-hat, neon hoodie, and pacifier? “Not exactly. But these greasy club kids have shown me a side of myself that I never knew existed.” Yes, Harvard students have seen the light. And it’s a giant disco ball...
...felt I let my teammates down,” she said. “I knew I needed to change that this season...