According to Wikipedia, the term “uncanny valley” is derived from a hypothesis in the field of robotics and 3D computer animation suggesting that when human replicas look and act almost, but not perfectly, like actual human beings, it prompts a feeling of revulsion among human observers.
Now meet Geminoid-F, a disturbingly lifelike robot that recently caused a stir with its appearance in a Tokyo department store window, where it interacted with passers-by. Programmed with upwards of 60 human-like actions, the robot even returned people’s smiles. Geminoid-F is the creation of Osaka University’s Professor Hiroshi Ishiguro, probably best known for designing and building Geminoid HI-1, a robotic replica of himself. The idea, as we understand it, was to test the reaction of shoppers to android mannequins.