پساساختارگرایی به مجموعهای از افکار روشنفکرانه فیلسوفان اروپای غربی و جامعهشناسانی گفته میشود که با گرایش فرانسوی، مطلب نوشتهاند. تعریف دقیق این حرکت و تلخیص آن کار دشواری است ولی بهطور کلی میتوان گفت که افکار این دانشمندان، توسعه و پاسخ به ساختارگرایی بودهاست و به همین دلیل پیشوند «پسا» را به آن اضافه کردهاند. پساساختارگرایی و پسامدرنیسم بعضاً به جای یکدیگر بهکار میروند. پساساختارگرایی هم چنین رابطهٔ نزدیکی با واسازی دارد.
افرادی مانند ژاک دریدا و میشل فوکو از پیشگامان این مکتب فکری هستند که به نظر عدهای به شکل تنگاتنگی با پسامدرنیسم و پدیدارشناسی مرتبط است. این ارتباط تا حدی است که بعضی متفکران مدعی شدهاند که پساساختارگرایی را میتوان به شکلی صحیح پساپدیدارشناسی نامید
Post-structuralism is either a continuation or a rejection of the intellectual project that preceded it—structuralism. Structuralism proposes that one may understand human culture by means of a structure—modeled on language (structural linguistics)—that differs from concrete reality and from abstract ideas—a "third order" that mediates between the two. Post-structuralist authors all present different critiques of structuralism, but common themes include the rejection of the self-sufficiency of structuralism, and an interrogation of the binary oppositions that constitute its structures.  Writers whose works are often characterised as post-structuralist include: Roland Barthes, Jacques Derrida, Michel Foucault, Gilles Deleuze, Judith Butler, Jean Baudrillard, Julia Kristeva, and Jürgen Habermas, although many theorists who have been called "post-structuralist" have rejected the label.
Post-structuralism and structuralism
Structuralism was an intellectual movement in France in the 1950s and 1960s that studied the underlying structures in cultural products (such as texts) and used analytical concepts from linguistics, psychology, anthropology, and other fields to interpret those structures. Structuralism posits the concept of binary opposition, in which frequently used pairs of opposite but related words (concepts) are often arranged in a hierarchy, for example: Enlightenment/Romantic, male/female, speech/writing, rational/emotional, signified/signifier, symbolic/imaginary.
Post-structuralism rejects the structuralist notion that the dominant word in a pair is dependent on its subservient counterpart and instead argues that founding knowledge either on pure experience (phenomenology) or systematic structures (Structuralism) is impossible because history and culture condition the study of underlying structures and these are subject to biases and misinterpretations. This impossibility was not meant as a failure or loss, but rather as a cause for "celebration and liberation".A post-structuralist approach argues that to understand an object (e.g., a text), it is necessary to study both the object itself and the systems of knowledge that produced the object. The uncertain distance between structuralism and post-structuralism is further blurred by the fact that scholars rarely label themselves as post-structuralists. Some scholars associated with structuralism, such as Roland Barthes and Michel Foucault, also became noteworthy in post-structuralism.
Some observers from outside the post-structuralist camp have questioned the rigour and legitimacy of the field. American philosopher John Searle argued in 1990 that "The spread of 'poststructuralist' literary theory is perhaps the best-known example of a silly but non-catastrophic phenomenon." Similarly, physicist Alan Sokal in 1997 criticized "the postmodernist/poststructuralist gibberish that is now hegemonic in some sectors of the American academy." Literature scholar Norman Holland argued that post-structuralism was flawed due to reliance on Saussure's linguistic model, which was seriously challenged by the 1950s and was soon abandoned by linguists: "Saussure's views are not held, so far as I know, by modern linguists, only by literary critics and the occasional philosopher. [Strict adherence to Saussure] has elicited wrong film and literary theory on a grand scale. One can find dozens of books of literary theory bogged down in signifiers and signifieds, but only a handful that refers to Chomsky."
David Foster Wallace wrote:
Post-structuralism emerged in France during the 1960s as a movement critiquing structuralism. According to J. G. Merquior a love–hate relationship with structuralism developed among many leading French thinkers in the 1960s.
In a 1966 lecture "Structure, Sign, and Play in the Discourse of the Human Sciences", Jacques Derrida presented a thesis on an apparent rupture in intellectual life. Derrida interpreted this event as a "decentering" of the former intellectual cosmos. Instead of progress or divergence from an identified centre, Derrida described this "event" as a kind of "play."
In 1967, Barthes published "The Death of the Author" in which he announced a metaphorical event: the "death" of the author as an authentic source of meaning for a given text. Barthes argued that any literary text has multiple meanings and that the author was not the prime source of the work's semantic content. The "Death of the Author," Barthes maintained, was the "Birth of the Reader," as the source of the proliferation of meanings of the text.
The period was marked by the rebellion of students and workers against the state in May 1968.
Barthes and the need for metalanguage
Barthes in his work, Elements of Semiology (1967), advanced the concept of the "metalanguage". A metalanguage is a systematized way of talking about concepts like meaning and grammar beyond the constraints of a traditional (first-order) language; in a metalanguage, symbols replace words and phrases. Insofar as one metalanguage is required for one explanation of the first-order language, another may be required, so metalanguages may actually replace first-order languages. Barthes exposes how this structuralist system is regressive; orders of language rely upon a metalanguage by which it is explained, and therefore deconstruction itself is in danger of becoming a metalanguage, thus exposing all languages and discourse to scrutiny. Barthes' other works contributed deconstructive theories about texts.
Derrida's lecture at Johns Hopkins
The occasional designation of Post-structuralism as a movement can be tied to the fact that mounting criticism of Structuralism became evident at approximately the same time that Structuralism became a topic of interest in universities in the United States. This interest led to a colloquium at Johns Hopkins University in 1966 titled "The Languages of Criticism and the Sciences of Man", to which such French philosophers as Derrida, Barthes, and Lacan were invited to speak.
Derrida's lecture at that conference, "Structure, Sign, and Play in the Human Sciences", was one of the earliest to propose some theoretical limitations to Structuralism, and to attempt to theorize on terms that were clearly no longer structuralist.
The element of "play" in the title of Derrida's essay is often erroneously interpreted in a linguistic sense, based on a general tendency towards puns and humour, while social constructionism as developed in the later work of Michel Foucault is said to create play in the sense of strategic agency by laying bare the levers of historical change. Many see the importance of Foucault's work to be in its synthesis of this social/historical account of the operation of power (see governmentality).
The following are often said to be post-structuralists, or to have had a post-structuralist period: