Apperception - Meaning in Philosophy

Meaning in Philosophy

The term originates with Descartes in the form of the word apercevoir in his book Traité des passions. Leibniz introduced the concept of apperception into the more technical philosophical tradition, in his work Principes de la nature fondés en raison et de la grâce; although he used the word practically in the sense of the modern attention, by which an object is apprehended as "not-self" and yet in relation to the self.

Immanuel Kant distinguished transcendental apperception from empirical apperception. The first is the perception of an object as involving the consciousness of the pure self as subject--"the pure, original, unchangeable consciousness that is the necessary condition of experience and the ultimate foundation of the unity of experience." The second is "the consciousness of the concrete actual self with its changing states", the so-called "inner sense." (Otto F. Kraushaar in Runes). Transcendental apperception is almost equivalent to self-consciousness; the existence of the ego may be more or less prominent, but it is always involved. See Kantianism.