Human, But Not Too Human

From the New York Times:

If a robot had features that made it seem, say, 50 percent human, 50 percent machine, according to this view, we would be willing to fill in the blanks and presume a certain kind of nearly human status. That is why robots like Domo and Mertz are interpreted by our brains as creaturelike. But if a robot has features that make it appear 99 percent human, the uncanny-valley theory holds that our brains get stuck on that missing 1 percent: the eyes that gaze but have no spark, the arms that move with just a little too much stiffness. This response might be akin to an adaptive revulsion at the sight of corpses. A too-human robot looks distressingly like a corpse that moves. [Via|Link]