Apperception
Appearance
Just as a quick start: we may perhaps draw a line from reception over perception to apperception. Reception, then, is the physiological receiving of a signal (i.e. the immediate biochemical effects of a physical stimulus); perception, the processing of this signal up to and including the appearance of a 'something' in mind; and apperception, the further interpretation of this 'something' as, for example, a 'car', or a 'dangerous situation', or a 'feeling that reminds me of...'.
this article explains some uses of the term in philosophy: http://www.textlog.de/1381.html