Relation Types

Groups the vocabulary entities naming how one entity in the psychology atlas relates to another, such as an in-branch edge linking a study to the branch it belongs to, or a cross-atlas seam edge proposing a same-as link to a Medicine or Philosophy entity. The grouping is by kind of entity, relation types, rather than by subject matter; a relation type is vocabulary, not a psychological subject in its own right. It deliberately excludes the psychologists, theories, studies and schools those relations connect, each of which carries its own subject-matter category instead.