Human language and our use of it to communicate or to understand the world requires deriving relations among events: for example, if A=B and A=C, then B=C. Rela... » 

Human language and our use of it to communicate or to understand the world requires deriving relations among events: for example, if A=B and A=C, then B=C. Relational frame theory argues that such performances are at the heart of any meaningful psychology of language and cognition. From a very early «