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.

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.

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.

What sort of mental state is a delusion? What causes delusions? Why are delusions pathological? This book examines these questions, which are normally considered separately, in a much-needed exploration of an important and fascinating topic, Kengo Miyazono assesses the philosophical, psychological and psychiatric literature on delusions to argue that delusions are malfunctioning beliefs. Delusions belong to the same category as beliefs but - unlike healthy irrational beliefs - fail to play the function of beliefs. Delusions and Beliefs: A Philosophical Inquiry will be of great interest to students of philosophy of mind and psychology and philosophy of mental disorder, as well as those in related fields such as mental health and psychiatry.

This book presents new philosophical work on delusions and their impact on everyday human behavior. It explores a cluster of related topics at the intersection of philosophy of mind and psychiatry, while also charting the historical development of work on delusions. Within psychiatry, there are several disputes about the nature and origin of delusions. Whereas some authors see only an abnormal phenomenon that needs to be treated by psychological or pharmacological means, others hold that delusions can be psychologically adaptive and even have epistemic benefits. This book brings together an interdisciplinary group of contributors to build consensus around what delusions are and how they impact the human mind. Part 1 provides readers with an informed historical discussion of delusions and carefully examines the contemporary impact of these historical perspectives. Part 2 analyzes the impact of contemporary views of delusions on the mental and emotional life of human agents. Finally, Part 3 explores the normative frameworks of delusions and analyzes the impact of some of their behavioral consequences on the daily life of subjects and their caregivers. The Philosophy and Psychology of Delusions is essential reading for researchers and graduate students working at the intersection of philosophy, psychiatry, and psychology.