In a recent TED talk, Swiss magician Marco Tempest, who's performed tricks using robots, said that "besides the faces and bodies we give our robots, we cannot read their intentions, and that makes us nervous. When someone hands an object to you, you can read intention in their eyes, their face, their body language. That's not true of the robot."
Now Japanese researchers want to change that. They say that a big problem with today's robots is that we don’t know what’s going on inside their heads. Robots that have facial expressions and are capable of gesticulating can help us feel more at ease interacting with them, but the researchers want to go one step further: They want to build robots with some of the same involuntary physiological reactions that we humans have, such as sweating when we feel anxious or getting goosebumps when we're scared.