 Other than in linguistics, Chomsky's ideas have been influential in cognitive psychology, computer science and socialist libertarian thinking.One of the approaches to cognitive linguistics is called Cognitive Linguistics, with capital initials, but it is also often spelled cognitive linguistics with all lowercase letters.This movement saw its beginning in early 1980s when George Lakoff's metaphor theory was united with Ronald Langacker's Cognitive Grammar, with subsequent models of Construction Grammar following from various authors.