Gestalt Psychology is worth looking up (mainly about visual patterns)
http://en.wikipedia.org/wiki/Gestalt_psychology
Chess is also a good example:
http://www.chess.com/article/view/the-cognitive-psychology-of-chess
One important role in chess skill is pattern recognition (vs. the ability to search through the problem space). Through years of practice and study, masters have learnt several hundred thousands of perceptual chess patterns (called chunking). When one of these patterns is recognized in a particular position, the master then has rapid access to information such as potential moves or move sequences, tactics, and strategies. This explains automatic and intuitive discovery of good moves by a master, as well as extraordinary memory for game-like chess positions.
You can also argue that stored patterns operate a bit like 'production rules' in AI... although AI gets a bit complex !
http://www.cse.unsw.edu.au/~billw/cs9414/notes/kr/rules/rules.html
See also: 'Schemas' - which are pre-existing mental 'patterns' which we tend to apply to incoming mental data:
http://psychology.about.com/od/sindex/g/def_schema.htm
A schema is a cognitive framework or concept that helps organize and interpret information. Schemas can be useful, because they allow us to take shortcuts in interpreting a vast amount of information. However, these mental frameworks also cause us to exclude pertinent information in favor of information that confirms our pre-existing beliefs and ideas. Schemas can contribute to stereotypes and make it difficult to retain new information that does not conform to our established schemas.