J. Dudley Andrew, in his THE MAJOR FILM THEORIES (1976), discusses a certain relationship between Eisenstein and psychology, such as associationism, Titchener's structural psychology, Pavlov's conditionned reflex, Piaget, and Vygotsky. One can add to this list a name of Freud, as Marie Seton or Peter Wollen regards him profoundly influential upon Eisenstein. Andrew, above all, put a great emphasis on a similarity of Eisenstein's concept of montage to Piaget's genetic psychology.
But, throwing light on Vygotsky's inner speech, we can try to connect him with Eisenstein. According to Vygotsky, inner speech is not in the preceding stage of logical, uttered language, but has a genetically different origin from it. Therefore, the inner speech is the ultimate stage in its own right, and montage can be thought as an energizing catalyst upon the inner speech of the spectator.
