Study Shows Touching a Humanoid Robot Elicits Arousal In Humans

There's a point on the Uncanny Valley when a humanoid robot turns from something "friendly" into something terrifying. An example of a robot that would naturally register as non-threatening would be Star Wars' C-3PO. We can still differentiate between computer and human at that level. It's familiar to us, but we know for a fact that it's non-human. Even though we see these robots in such a way, is it possible that we could associate them with a deeper emotional response?