||This section covers the research area that is usually called "poststructuralism." It includes mainly French philosophers of the second half of the 20th century, philosophers like Foucault, Derrida, Deleuze, Deleuze and Guattari, and Lyotard. The area overlaps with psychoanalysis as with Guattari and Lacan. The main idea behind the title "poststructuralism" is that this group of French philosophers reacted to the development of structural linguistics and anthropology in the 1960s. They reacted by appropriating the idea that the meanings of signs are not positivities, but negativities whose content is determined by differences from other meanings and signs.This group of philosophers used the idea of a fundamental differentiation to criticize phenomenology. But like structuralism this group also appropriated phenomenological ideas. In particular, they appropriated the idea that intentionality (after being criticized) involved the projection of a meaning that is infinitely determinable. In addition to structuralism and phenomenology, this group of philosophers also appropriated ideas from Marxism. All of these philosophers criticize capitalism and globalization. Finally, the title "poststructuralism" is somewhat misleading. While appropriating some ideas from structuralism, this group of philosophers constructed original concepts and in some cases novel philosophical systems.