Concept (philosophy)

Concept (philosophy)
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Name	Concept (philosophy)
Field	Philosophy, Cognitive Science, Linguistics

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Concept (philosophy)

A concept in philosophy is a mental representation or abstract object used in thought, classification, and reasoning; it figures centrally in debates across Plato, Aristotle, René Descartes, John Locke and Immanuel Kant. The study of concepts intersects with inquiries by Gottfried Wilhelm Leibniz, David Hume, Wilhelm Wundt, G. E. Moore and Ludwig Wittgenstein and informs contemporary work by scholars at Oxford University, Harvard University, Massachusetts Institute of Technology, and Stanford University.

Definition and scope

Philosophical treatments draw on traditions represented by Plato's theory of Forms, Aristotle's Categories, John Locke's empiricism, Immanuel Kant's critical philosophy, Gottlob Frege's sense and reference, Bertrand Russell's logical atomism, and Ludwig Wittgenstein's later language games. Debates concern whether concepts are abstract entities posited by Plato and Gottfried Wilhelm Leibniz, mental representations as in the work of René Descartes and Wilhelm Wundt, or linguistic conventions emphasized by J. L. Austin, John Austin, and Noam Chomsky. Contemporary frameworks reference research programs at University of Cambridge, University of Oxford, Princeton University, and the Institute for Advanced Study.

Ancient and medieval periods feature treatments by Plato, Aristotle, Plotinus, Boethius, and Thomas Aquinas who integrated Greek metaphysics into Scholasticism. Early modern debates involve René Descartes, Thomas Hobbes, John Locke, George Berkeley, and David Hume with empirical and rationalist contests echoed in the work of Gottfried Wilhelm Leibniz and Baruch Spinoza. Nineteenth- and twentieth-century developments include contributions by Immanuel Kant's Critique, Georg Wilhelm Friedrich Hegel's logic, Charles Sanders Peirce's pragmatism, William James's psychology, Gottlob Frege and Bertrand Russell in analytic philosophy, and the linguistic turn led by Ludwig Wittgenstein, J. L. Austin, and Saul Kripke.

Major schools include classical theory ascribed to Aristotle and revived in analytic traditions by Gottlob Frege and Bertrand Russell, prototype theory advanced by Eleanor Rosch and connected to work at Harvard University and University of California, Berkeley, theory-theory associated with Peter Gärdenfors and influenced by Jean Piaget and Lev Vygotsky, and conceptual role semantics developed by Robert Brandom and Wilfrid Sellars. Semantic externalism debates feature Hilary Putnam and Saul Kripke against internalist positions of Franz Brentano and Gottfried Wilhelm Leibniz. Naturalized accounts draw on Jerry Fodor's language of thought hypothesis and critiques by Patricia Churchland and Paul Churchland; eliminative materialism from Paul and Patricia Churchland contrasts with realist positions defended by David Armstrong and Michael Dummett.

Relations between concepts and linguistic expressions are central in the work of Gottlob Frege, Bertrand Russell, Noam Chomsky, J. L. Austin, John Searle, and Saul Kripke. The debate centers on whether concepts are prior to lexical items as in Noam Chomsky's nativism or emerge from usage patterns emphasized by Ludwig Wittgenstein and J. L. Austin; cross-linguistic issues draw on studies by Benjamin Lee Whorf and typological work at Max Planck Institute for Psycholinguistics. Philosophers such as Donald Davidson and Hilary Putnam examine truth-conditional semantics, while Gottlob Frege and Michael Dummett influence theories of meaning and the correspondence between thought and utterance.

Cognitive science approaches integrate findings from Jean Piaget, Lev Vygotsky, Noam Chomsky, Eleanor Rosch, Elizabeth Spelke, and Susan Carey. Empirical methods at institutions like Massachusetts Institute of Technology, University of California, Berkeley, and Max Planck Institute for Psycholinguistics inform debates about concept acquisition, category learning, and neural representation studied by researchers influenced by Patricia Churchland, Antonio Damasio, Michael Gazzaniga, and Stanley Fiske. Developmental and comparative studies reference Jean Piaget's stages, Elizabeth Spelke's core knowledge, and primate cognition work linked to Jane Goodall and Frans de Waal.

Philosophical accounts of concepts inform work in Artificial intelligence research at MIT Computer Science and Artificial Intelligence Laboratory, semantic web initiatives at World Wide Web Consortium, cognitive linguistics at Yale University, and legal theory at Harvard Law School. Ethical, educational, and policy debates draw on conceptual analysis in forums like United Nations committees, European Union institutions, and national academies such as the Royal Society. Intersections with neuroscience involve collaborations between Massachusetts General Hospital, University College London, and the National Institutes of Health, while implications for machine learning appear in projects at Google and OpenAI.