Ap`per*cep"tion (?), n. [Pref. ad- +
perception: cf. F. apperception.] (Metaph.) The
mind's perception of itself as the subject or actor in its own states;
perception that reflects upon itself; sometimes, intensified or energetic
perception. Leibnitz. Reid.
This feeling has been called by philosophers the
apperception or consciousness of our own existence.
Sir W. Hamilton.