Philosophical Delusion and its Therapy provides new foundations and methods for the revolutionary project of philosophical therapy pioneered by Ludwig Wittgenstein. The book vindicates this currently much-discussed project by reconstructing the genesis of important philosophical problems: With the help of concepts adapted from cognitive linguistics and cognitive psychology, the book analyses how philosophical reflection is shaped by pictures and metaphors we are not aware of employing and are prone to misapply. Through innovative case-studies on the genesis of classical problems about the mind and perception, and on thinkers including Locke, Berkeley and Ayer, the book demonstrates how such autonomous habits of thought systematically generate unsound intuitions and philosophical delusions, whose clash with reality, or among each other, gives rise to ill-motivated but maddening problems. The book re-examines models of therapeutic philosophy, due to Wittgenstein and J. L. Austin, and develops an approach that may let us overcome philosophical delusions and the problems they engender. In this way, the book explains where and why therapy in called for in philosophy, and develops techniques to carry it out.

Philosophical Delusion and its Therapy provides new foundations and methods for the revolutionary project of philosophical therapy pioneered by Ludwig Wittgenstein. With the help of concepts adapted from cognitive linguistics and cognitive psychology, the book analyses how philosophical reflection is shaped by pictures and metaphors we are not aware of employing and are prone to misapply. Through innovative case-studies on the genesis of classical problems about the mind and perception, and on thinkers including Locke, Berkeley and Ayer, the book demonstrates how such autonomous habits of thought systematically generate unsound intuitions and philosophical delusions.

Recent clinical trials show that psychedelics such as LSD and psilocybin can be given safely in controlled conditions, and can cause lasting psychological benefits with one or two administrations. Supervised psychedelic sessions can reduce symptoms of anxiety, depression, and addiction, and improve well-being in healthy volunteers, for months or even years. But these benefits seem to be mediated by "mystical" experiences of cosmic consciousness, which prompts a philosophical concern: do psychedelics cause psychological benefits by inducing false or implausible beliefs about the metaphysical nature of reality? This book is the first scholarly monograph in English devoted to the philosophical analysis of psychedelic drugs. Its central focus is the apparent conflict between the growing use of psychedelics in psychiatry and the philosophical worldview of naturalism. Within the book, Letheby integrates empirical evidence and philosophical considerations in the service of a simple conclusion: this "Comforting Delusion Objection" to psychedelic therapy fails. While exotic metaphysical ideas do sometimes come up, they are not, on closer inspection, the central driver of change in psychedelic therapy. Psychedelics lead to lasting benefits by altering the sense of self, and changing how people relate to their own minds and lives-not by changing their beliefs about the ultimate nature of reality. The upshot is that a traditional conception of psychedelics as agents of insight and spirituality can be reconciled with naturalism (the philosophical position that the natural world is all there is). Controlled psychedelic use can lead to genuine forms of knowledge gain and spiritual growth-even if no Cosmic Consciousness or transcendent divine Reality exists. Philosophy of Psychedelics is an indispensable guide to the literature for researchers already engaged in the field of psychedelic psychiatry, and for researchers-especially philosophers-who want to become acquainted with this increasingly topical field.

The philosophy of psychosis and the psychosis of philosophy: a philosopher draws on his experience of madness. In this book, philosopher and linguist Wouter Kusters examines the philosophy of psychosis—and the psychosis of philosophy. By analyzing the experience of psychosis in philosophical terms, Kusters not only emancipates the experience of the psychotic from medical classification, he also emancipates the philosopher from the narrowness of textbooks and academia, allowing philosophers to engage in real-life praxis, philosophy in vivo. Philosophy and madness—Kusters's preferred, non-medicalized term—coexist, one mirroring the other. Kusters draws on his own experience of madness—two episodes of psychosis, twenty years apart—as well as other first-person narratives of psychosis. Speculating about the maddening effect of certain words and thought, he argues, and demonstrates, that the steady flow of philosophical deliberation may sweep one into a full-blown acute psychotic episode. Indeed, a certain kind of philosophizing may result in confusion, paradoxes, unworldly insights, and circular frozenness reminiscent of madness. Psychosis presents itself to the psychotic as an inescapable truth and reality. Kusters evokes the mad person's philosophical or existential amazement at reality, thinking, time, and space, drawing on classic autobiographical accounts of psychoses by Antonin Artaud, Daniel Schreber, and others, as well as the work of phenomenological psychiatrists and psychologists and such phenomenologists as Edmund Husserl and Maurice Merleau-Ponty. He considers the philosophical mystic and the mystical philosopher, tracing the mad undercurrent in the Husserlian philosophy of time; visits the cloud castles of mystical madness, encountering LSD devotees, philosophers, theologians, and nihilists; and, falling to earth, finds anxiety, emptiness, delusions, and hallucinations. Madness and philosophy proceed and converge toward a single vanishing point.

The later Wittgenstein is notoriously hard to understand. His novel philosophical approach is the key to understanding his perplexing work. This volume assembles leading Wittgenstein scholars to come to grips with its least well understood aspect: the unfamiliar aims and method that shape Wittgenstein's approach. Wittgenstein at Work investigates Wittgenstein's aims, rationale and method in two steps. The first seven chapters analyze how he proceeds in core parts of the Philosophical Investigations: the discussion of the Augustinian picture of language, ostensive definition, philosophical method, understanding, rule-following, and private language. The final five chapters examine his most striking methodological remarks: his repudiation of theory and non-trivial theses, and some core notions of his methodology: his notions of clarification, synoptic representation, nonsense, and philosophical pictures. The volume considerably advances discussion of the therapeutic aspects of his approach that are currently a focus of debate. This volume is an indispensable methodological companion to the Philosophical Investigations, useful to both specialists and students alike.

This groundbreaking volume of original essays presents fresh avenues of inquiry at the intersection of philosophy and psychiatry. Contributors draw from a variety of fields, including evolutionary psychiatry, phenomenology, biopsychosocial models, psychoanalysis, neuroscience, neuroethics, behavioral economics, and virtue theory. Philosophy and Psychiatry’s unique structure consists of two parts: in the first, philosophers write five lead essays with replies from psychiatrists. In the second part, this arrangement is reversed. The result is an interdisciplinary exchange that allows for direct discourse, and a volume at the forefront of defining an emerging discipline. Philosophy and Psychiatry will be of interest to professionals in philosophy and psychiatry, as well as mental health researchers and clinicians.

This book shows that Ludwig Wittgenstein’s later philosophical methods can be fruitfully applied to several problems in contemporary moral philosophy. The author considers Wittgenstein’s ethical views and addresses such topics as meta-ethics, objectivity in ethics and moral perception. Readers will gain an insight into how Wittgenstein thought about philosophical problems and a new way of looking at moral questions. The book consists of three parts. In the first part, Wittgenstein’s later philosophical methods are discussed, including his comparison of philosophical methods to therapies. The book then goes on to explore how these methods give insight into Wittgenstein’s ethical views. Readers will see how these are better understood when read in the light of his later philosophical thought. In the third part, Wittgenstein’s later methods are applied to problems in contemporary moral philosophy, including a look at questions for moral advice. The author reviews and criticizes some of the secondary literature on Wittgenstein’s later philosophical methods and indicates how the topic of the book can be developed in future research. There is something of value for readers of all levels in this insightful and well written volume. It will particularly appeal to scholars and students of Wittgenstein, of philosophy, and of ethics.