Structural models and patterns are vitally important for human beings. From birth, we base our emotional and cognitive representations of the external world on species-specific signals (the human face) and exploit these signals to structure our instinctive behavior. The creation of cognitive patterns to represent the world lies at the very heart of human cognition. It is this process that underlies our efficient use of signs, our ability to communicate with natural languages and to build cognitive artifacts, the way we organize the external world, and the way we organize external events in our memories and our flow of consciousness. Patterns are sometimes called schemas, or models, and discussed in terms of a gestalt (Piaget, 1960; 1970; Koelher, 1974). In the middle ages a pattern meant “the.original.proposed.to.imitation;.the. archetype;.that.which.is.to.be.copied;.an.exemplar” (from the On Line Etymology Dictionary). Modern use dates back to the XVIII century. In 1977 Christopher Alexander introduced a new way of using the term in architecture. For Alexander, a pattern was a model used to encode and organize existing knowledge, avoiding the need to reinvent the knowledge every time it was needed. For Alexander a pattern was “a three part rule, which expresses a relation between a certain context, a problem, and a solution” (Alexander et al., 1977).
A POSSIBLE CASE OF INSTINCTIVE BEHAVIOR IN THE WHITE RAT