The Uncanny Valley

This is an awesome concept and I am pretty surprised I have only recently heard about it. Everyone on some level has probably experienced this, especially with the advent of specialty/more life like robots.





From Wikipedia:

Hypothesized emotional response of human subjects is plotted against anthropomorphism of a robot, following Mori's statements. The uncanny valley is the region of negative emotional response towards robots that seem "almost human". Movement amplifies the emotional response.