Home sapiens owe our sense of self to language- and vice versa. Try introducing yourself without using words- only actions and gestures.
Go on, try it.
The human experience of self, a phenomenon we owe to language- and several scholars argue thus- at least in part.
These arguments are within the ambit of cognitive science & suggest that the human sense of self is largely an outgrowth of our linguistic abilities.
Comments, thoughts welcome on the subject- a detailed post follows.