In a dimly lit lab,
A mad scientist did toil,
Creating robots, with gears and tabs,
But as they came to life,
He felt a chill, of eerie strife.

The Uncanny Valley is a term used to describe the relationship between the human-like appearance of a robotic object and the emotional response it evokes.

In this phenomenon, people feel a sense of unease or even revulsion in response to humanoid robots that are highly realistic.