Gesture as language: why we point with a finger

Pointing at an object… in one sense you might say that this simple gesture doesn't just replace a word, but that it is a word—perhaps the first word. We know that it and other such gestures play a fundamental role in ...

Virtual humans, programmed to feel

A clenched fist thumps the air to emphasize a point; a sweeping hand signals the array of possibilities; furrowed eyebrows question the veracity of the politician's remarks. These are all examples of the ways we express our ...

With wave of the hand, researchers create touch-based interfaces

Researchers previously have shown that a depth camera system, such as Kinect, can be combined with a projector to turn almost any surface into a touchscreen. But now researchers at Carnegie Mellon University have demonstrated ...

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