The role of visual imagery is explored as an information processing strategy, and its relationship is counterpointed to the linguistic system. The importance of visual imagery as a diagnostic and therapeutic tool to aid both visual and nonvisual performance and learning problems is discussed. (Author)

Discusses several philosophies of linguistics and semiotics that debate the importance of words and their relationship to signs, language as the primary modeling system, and the historical primacy of verbal versus visual communication. Describes human communication as both language-based and nonverbal, both aspects inviting arbitrary and abstract…