Complexity theory is cool and trendy at the moment. Find any of the thousands of books on the topic and go hog-wild. A number of the "indicators" presented here are not really indicators at all, although perception is likely a complex system, determining whether it is or not is so far beyond the scope of this project even I couldn't justify it.
The cumulative and suggestive nature of perception is fun to play with, and is wrapped up in the ideas of time, ritual, and the like. Repetition and time are also entwined. The perception of time can be seen as the perception of change in state (we see this when we understand time as discrete events).
The iterative process can produce false "artefacts," or "illusions," as higher-level expectations drive the filtering or pattern recognition systems to dramatically alter the information until a false impression is created.
Auxiliary Elements for document tb.percept.trident.refine.htm
Part of Toolboxes and Treasure-chests.