Cognitive psychology has traditionally focused on questions about the mental processes and representations involved in attention, perception, memory, language use, the (creative) solving of problems, and thinking. Research questions in the areas of cognitive psychology can essentially be reduced to: what are the mental symbols that one uses to represent the outside world in the mind, and what mental manipulations does one do to those symbols to use the information contained in them? Since the establishment of the field in the cognitive revolution of the 1950s, cognitive psychology has infiltrated other areas of...