Problem solving is an interesting area, and there exists a lot of psychological research, most notably, for example, the studies that the Gestalt psychologist Wolfgang Köhler conducted with chimpanzees. Most psychologists treat the phenomenon as a "mental process' of "problem finding", "problem shaping", and 'solution finding". Every now and then we can find some "insight" thrown into the mix of concepts to explain a feature of the phenomenon, which occurs precisely when psychologists cannot really explain what has happened with their representational models.