Zombie

A philosophical zombie or p-zombie is a hypothetical being that is indistinguishable from a normal human being except that it lacks conscious experience, qualia, or sentience. When a zombie is poked with a sharp object, for example, it does not feel any pain. It behaves exactly as if it does feel pain (it may say "Ouch!" and so forth), but it does not actually have the experience of pain as a person normally does.

The notion of a philosophical zombie is mainly used in arguments (often called zombie arguments) in the philosophy of mind, particularly arguments against forms of physicalism.