Revolution, Demarcation, and Psychology

Is psychology like another empirical discipline, say physics or biology, or is it fundamentally different? The principal aim of the article is to demonstrate that the last two revolutions in psychology were made for the sake of science. Chomsky, Fodor, Pylyshyn battled against the behaviorist point of view. Lakoff, Johnson, Langacker fought against syntactocentrism of Chomsky's generative grammar. From Chomsky's point of view Skinner's behaviorist theory is not science, but from the perspective of Langacker's cognitive grammar Chomsky's theory of competence is not science either. That is the reason why the questions: what is science?, who is a scientist?, and how is the world 'science' to be used?- are so important. Such reconstruction of the scientific practice is to some extence consonant with Kuhn's analysis of the history of science.