apperceptual: (adjective)

1. of or relating to the act of apperceiving

apperceive: (verb)

1. (Philosophy) to be conscious of perceiving
2. (Psychology) to perceive in terms of past experience; to compare a perception to previously held ideas so as to extract meaning from it

apperception: (noun)

1. (Philosophy) the experience of perceiving, as revealed to introspection
2. (Psychology) the process whereby perceived qualities of an object are related to past experience

apperceptive: (adjective)

1. (Philosophy) able to perceive consciously
2. (Psychology) able to relate new percepts to past experience