The Facebook AI lab has developed an animated bot that learned to respond naturally to human facial movements during conversation, so much so that volunteers rated its reactions as natural as a human’s.
Most of us are able to intuitively understand human facial expressions: in conversation, millions of tiny muscle movements change our eyes, mouth, head position and more to signal to our fellow humans what we’re thinking. These unconscious movements are what make us human, but they also make it exceptionally difficult for robots to imitate us — and make those that try seem creepy, as they enter the “uncanny valley.”
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