
Cognition 169
animals, plants, professions, and names of people in random order. After
they were given a period of time to memorize the list, they were asked to
repeat the list items in any order they preferred. The head dump revealed
that animals, plants, names, and professions were retrieved in clusters that
corresponded to semantic categories and not in random order. Categorical
thinking is revisited in Chapter 12.
Propositional memory pertains to relationships among concepts. Spatial
memory pertains to pictures and relationships. Propositional and spatial
memory appear to be closely connected; perhaps for this reason it is not
uncommon for ...