Brewer also provides a table of terms that he recommends be used when refering to different types of mental models. Pre-existing knowledge Global schema Local schema Episodal input Global related Local related Resulting episodic knowledge struct. The terms global and local are somewhat confusing. I think of global as generic and local as specific. Despite the distinctions between episodic models and instantiated schemas, there is no solid seperation between the two.
Many mental structures are a combination of both episodic models and instantiated schemas.
One example of this that Brewer mentions is the situation model that is used to visualise text comprehension. Brewer believes that we have to work much harder to create episodal models than instantiated schemas. This belief has an empirical basis but is currently a working hypothosis.