In psychology, apperception is "the process by which new experience is assimilated to and transformed by the residuum of past experience of an individual to form a new whole." In short, it is to perceive new experience in relation to past experience. The term is found in the early psychologies of Herbert Spencer, Hermann Lotze, and Wilhelm Wundt. It originally means passing the threshold into consciousness, i.e., to perceive. But the percept is changed when reaching consciousness due to the contextual presence of the other stuff already there, thus it is not perceived but apperceived.
According to Johann Friedrich Herbart apperception is that process by which an aggregate or "mass" of presentations becomes systematized (apperceptions-system) by the accretion of new elements, either sense-given or product of the inner workings of the mind. He thus emphasizes in apperception the connection with the self as resulting from the sum of antecedent experience. Hence in education the teacher should fully acquaint himself with the mental development of the pupil, in order that he may make full use of what the pupil already knows.
Apperception is thus a general term for all mental processes in which a presentation is brought into connection with an already existent and systematized mental conception, and thereby is classified, explained or, in a word, understood; e.g. a new scientific phenomenon is explained in the light of phenomena already analyzed and classified. The whole intelligent life of man is, consciously or unconsciously, a process of apperception, in as much as every act of attention involves the appercipient process.
Is the following document an example of apperception or ideas of reference or a combination of both?