Clinicians and cognitive scientists typically conceive of delusions as doxastic—they view delusions as beliefs. But some philosophers have countered with anti-doxastic objections: delusions cannot be beliefs because they fail the necessary conditions of belief. A common response involves meeting these objections on their own terms by accepting necessary conditions on belief but trying to blunt their force. I take a different approach by invoking a cognitive-phenomenal view of belief and jettisoning the rational/behavioural conditions. On this view, the anti-doxastic claims can (...) be rejected outright, and doxasticism can be defended. I call this the cognitive phenomenological defence of doxasticism. (shrink)

Phenomenal intentionality theories have recently enjoyed significant attention. According to these theories, the intentionality of a mental representation (what it is about) crucially depends on its phenomenal features. We present a new puzzle for these theories, involving a phenomenon called ‘intentional identity’, or ‘co-intentionality’. Co-intentionality is a ubiquitous intentional phenomenon that involves tracking things even when there is no concrete thing being tracked. We suggest that phenomenal intentionality theories need to either develop new uniquely phenomenal resources for handling the puzzle, (...) or restrict their explanatory ambitions. (shrink)

It has recently been suggested that delusions be conceived of as symptoms on the harmful dysfunction account of disorder: delusions sometimes arise from dysfunction, but can also arise through normal cognition. Much attention has thus been payed to the question of how we can determine whether a delusion arises from dysfunction as opposed to normal cognition. In this paper, we consider another question, one that remains under-explored: which delusions warrant treatment? On the harmful dysfunction account, this question dissociates from the (...) question about dysfunction—there are a broad range of “treatable conditions” beyond mere harmful dysfunctions. As such, many conditions that arise from normal cognition are also eligible for medical intervention. We argue that some delusions that arise from normal cognition may well fall under the banner of treatable conditions. We examine the practical and ethical questions surrounding such treatment, including the issue of coercive and deceptive treatment options. (shrink)

Conspiracy theories play a troubling role in political discourse. Online forums provide a valuable window into everyday conspiracy theorizing, and can give a clue to the motivations and interests of those who post in such forums. Yet this online activity can be difficult to quantify and study. We describe a unique approach to studying online conspiracy theorists which used non-negative matrix factorization to create a topic model of authors' contributions to the main conspiracy forum on Reddit. This subreddit provides a (...) large corpus of comments which spans many years and numerous authors. We show that within the forum, there are multiple sub-populations distinguishable by their loadings on different topics in the model. Further, we argue, these differences are interpretable as differences in background beliefs and motivations. The diversity of the distinct subgroups places constraints on theories of what generates conspiracy theorizing. We argue that traditional “monological” believers are only the tip of an iceberg of commenters. Neither simple irrationality nor common preoccupations can account for the observed diversity. Instead, we suggest, those who endorse conspiracies seem to be primarily brought together by epistemological concerns, and that these central concerns link an otherwise heterogenous group of individuals. (shrink)

YouTube has been implicated in the transformation of users into extremists and conspiracy theorists. The alleged mechanism for this radicalizing process is YouTube’s recommender system, which is optimized to amplify and promote clips that users are likely to watch through to the end. YouTube optimizes for watch-through for economic reasons: people who watch a video through to the end are likely to then watch the next recommended video as well, which means that more advertisements can be served to them. This (...) is a seemingly innocuous design choice, but it has a troubling side-effect. Critics of YouTube have alleged that the recommender system tends to recommend extremist content and conspiracy theories, as such videos are especially likely to capture and keep users’ attention. To date, the problem of radicalization via the YouTube recommender system has been a matter of speculation. The current study represents the first systematic, pre-registered attempt to establish whether and to what extent the recommender system tends to promote such content. We begin by contextualizing our study in the framework of technological seduction. Next, we explain our methodology. After that, we present our results, which are consistent with the radicalization hypothesis. Finally, we discuss our findings, as well as directions for future research and recommendations for users, industry, and policy-makers. (shrink)

YouTube has been implicated in the transformation of users into extremists and conspiracy theorists. The alleged mechanism for this radicalizing process is YouTube’s recommender system, which is optimized to amplify and promote clips that users are likely to watch through to the end. YouTube optimizes for watch-through for economic reasons: people who watch a video through to the end are likely to then watch the next recommended video as well, which means that more advertisements can be served to them. This (...) is a seemingly innocuous design choice, but it has a troubling side-effect. Critics of YouTube have alleged that the recommender system tends to recommend extremist content and conspiracy theories, as such videos are especially likely to capture and keep users’ attention. To date, the problem of radicalization via the YouTube recommender system has been a matter of speculation. The current study represents the first systematic, pre-registered attempt to establish whether and to what extent the recommender system tends to promote such content. We begin by contextualizing our study in the framework of technological seduction. Next, we explain our methodology. After that, we present our results, which are consistent with the radicalization hypothesis. Finally, we discuss our findings, as well as directions for future research and recommendations for users, industry, and policy-makers. (shrink)

In this systematic study, Professor Achinstein analyzes such concepts as definitions, theories, and models, and contrasts his view with currently held positions that he finds inadequate.

Al-Kindi was the first philosopher of the Islamic world. He lived in Iraq and studied in Baghdad, where he became attached to the caliphal court. In due course he would become an important figure at court: a tutor to the caliph's son, and a central figure in the translation movement of the ninth century, which rendered much of Greek philosophy, science, and medicine into Arabic. Al-Kindi's wide-ranging intellectual interests included not only philosophy but also music, astronomy, mathematics, and medicine. Through (...) deep engagement with Greek tradition al-Kindi developed original theories on key issues in the philosophy of religion, metaphysics, physical science, and ethics. He is especially known for his arguments against the world's eternity, and his innovative use of Greek ideas to explore the idea of God's unity and transcendence. Despite al-Kindi's historical and philosophical importance no book has presented a complete, in-depth look at his thought until now. In this accessible introduction to al-Kindi's works, Peter Adamson surveys what is known of his life and examines his method and his attitude towards the Greek tradition, as well as his subtle relationship with the Muslim intellectual culture of his day. Above all the book focuses on explaining and evaluating the ideas found in al-Kindi's wide-ranging philosophical corpus, including works devoted to science and mathematics. Throughout, Adamson writes in language that is both serious and engaging, academic and approachable. This book will be of interest to experts in the field, but it requires no knowledge of Greek or Arabic, and is also aimed at non-experts who are simply interested in one of the greatest of Islamic philosophers. (shrink)

In this book, Peter Achinstein proposes and defends several objective concepts of evidence. He then explores the question of whether a scientific method, such as that represented in the four "Rules for the Study of Natural Philosophy" that Isaac Newton invoked in proving his law of gravity, can be employed in demonstrating how the proposed definitions of evidence are to be applied to real scientific cases.

This volume brings together eleven essays by the distinguished philosopher of science, Peter Achinstein. The unifying theme is the nature of the philosophical problems surrounding the postulation of unobservable entities such as light waves, molecules, and electrons. How, if at all, is it possible to confirm scientific hypotheses about "unobservables"? Achinstein examines this question as it arose in actual scientific practice in three nineteenth-century episodes: the debate between particle and wave theorists of light, Maxwell's kinetic theory of gases, and (...) J.J. Thomson's discovery of the electron. The book contains three parts, each devoted to one of these topics, beginning with an essay presenting the historical background of the episode and an introduction to the philosophical issues. There is an illuminating evaluation of various scientific methodologies, including hypothetico-deductivism, inductivism, and the method of independent warrant which combines features of the first two. Achinstein assesses the philosophical validity of both nineteenth-century and modern answers to questions about unobservables, and presents and defends his own solutions. (shrink)

P.F. Strawson's essay traces some formal characteristics of logic and grammar to their roots in general features of thought and experience.

When i was in graduate school, I inadvertently walked in on a fellow student taking his comprehensive exams. He was extremely frustrated because two of the questions asked about conceptual issues in personality and personality disorders. This student was not expecting such questions and considered them to be unfair. I knew other students in that same program who would have considered it a gift to get such “interesting” questions. Those clinical and counseling psychologists with theoretical–philosophical interests are often attracted to (...) the topics of personality and personality disorders. It has, therefore, puzzled me why these same topics are largely ignored by those philosophers who study the conceptual issues of .. (shrink)

No argument from the Arabic philosophical tradition has received more scholarly attention than Avicenna's ‘flying man’ thought experiment, in which a human is created out of thin air and is able to grasp his existence without grasping that he has a body. This paper offers a new interpretation of the version of this thought experiment found at the end of the first chapter of Avicenna's treatment of soul in theHealing. We argue that it needs to be understood in light of (...) an epistemological theory set out elsewhere by Avicenna, which allows that all the constitutive properties of an essence will be clear to someone who understands and considers that essence. On our reading, this theory is put to work in the ‘flying man’: because the flying man would grasp that his own essence has existence without grasping that he has a body, connection to body cannot be constitutive of the essence. (shrink)

As part of his defence of panpsychism, Strawson introduces the notion of 'brute' emergence, and hints at a contrasting notion of 'true' emergence. Panpsychism is true not least because brute emergence is incoherent. The alternative relation of true emergence is coherent and congruent with panpsychism. Strawson's distinction suggests that panpsychists endorse true emergence, while emergentists endorse brute emergence. I show that this yields a false dichotomy, which wrongly associates traditional emergentism with an implausible notion of emergence. I clarify the nature (...) and purpose of true and brute emergence, and I argue that traditional emergentists should reject both of them. (shrink)

I critically analyze Kagan’s claim that in order to advance the science of emotion we should abandon the practice of referring to emotions with common folk psychological names, such as fear and anger. Kagan recommends discovering more homogenous constructs that are segregated by the type of evidence used to infer those constructs. He also argues that variable origins, biological implementations, and psychological and sociocultural contexts may combine to create distinct kinds of emotional states that require distinct names. I acknowledge that (...) such a splitting strategy will provide increased validity, but also claim that atomizing alone may not give us everything we want from a scientific classification. (shrink)

Cet article explore la classification des troubles psychiatriques dans la perspective du modèle des espèces pratiques. En nous basant sur certains travaux en philosophie des sciences qui soutiennent que les éléments chimiques et les espèces biologiques ne possèdent pas de véritables essences, nous affirmons que les troubles psychiatriques ne devraient pas être compris, eux non plus, de façon essentialiste. Les troubles psychiatriques sont des « espèces pratiques », non des « espèces naturelles ». Ce modèle représente une approche pragmatiste de (...) la classification qui pose, compte tenu de l’infinie complexité du monde, qu’une multitude de décisions peuvent jouer un rôle légitime dans la définition des limites des catégories. Il s’agit d’une approche nominaliste contemporaine qui considère les concepts et les catégories comme provisoires et partiels, sans toutefois rejeter l’idée qu’ils sont des espèces légitimes. Ce modèle rejette ce que Ian Hacking a nommé le structurisme inhérent, sans pour autant rejeter les espèces. Le modèle des espèces pratiques rejette aussi l’éliminativisme. Il est en accord avec les arguments non essentialistes offerts par les éliminativistes, mais il n’accepte pas leurs conclusions austères. Je discute finalement les complications et les imperfections du modèle.This article explores the classification of psychiatric disorders from the perspective of the practical kinds model. Based on work in the philosophy of science which argues that chemical elements and biological species do not have real essences, it is argued that psychiatric disorders should not be understood essentialistically either. Psychiatric disorders are practical, not natural kinds. This model represents a pragmatist approach to classification which holds that, because the world is so complex, a multitude of decisions can play legitimate roles in defining category boundaries. It is a contemporary nominalistic approach that views concepts and categories as provisional and partial, but does not reject the notion that there are legitimate kinds. It rejects what Ian Hacking has called inherent structurism, but not kinds. The practical kinds model is also anti-eliminativist. It agrees with the non-essentialistic arguments offered by eliminativists, but does not accept their austere conclusions. Complications and shortcomings of the model are discussed. (shrink)

Confirmation theorists seek to define a function that will take into account the various factors relevant in determining the degree to which an hypothesis is confirmed by its evidence. Among confirmation theorists, only Rudolf Carnap has constructed a system which purports to consider factors in addition to the number of instances, viz. the variety manifested by the instances and the amount of analogy between the instances. It is the purpose of this paper to examine the problem which these additional factors (...) raise for confirmation theory, and to prove that, despite Carnap's claim, no confirmation function satisfying the requirements he has specified can take account of variety and analogy. This result is first proved for a special case, and then, in a subsequent section, is generalized through the introduction of a theorem (the proof of which is given in Appendix I). In the final section of the paper it is shown that, contrary to a claim which Carnap has made, not even the concept of the "logical width" of a predicate will enable confirmation functions satisfying his requirements to take adequate account of analogies between instances. (shrink)

The latest in the series based on the popular History of Philosophy podcast, this volume presents the first full history of philosophy in the Islamic world for a broad readership. It takes an approach unprecedented among introductions to this subject, by providing full coverage of Jewish and Christian thinkers as well as Muslims, and by taking the story of philosophy from its beginnings in the world of early Islam all the way through to the twentieth century. Major figures like Avicenna, (...) Averroes, and Maimonides are covered in great detail, but the book also looks at less familiar thinkers, including women philosophers. Attention is also given to the philosophical relevance of Islamic theology (kalam) and mysticism--the Sufi tradition within Islam, and Kabbalah among Jews--and to science, with chapters on disciplines like optics and astronomy. The book is divided into three sections, with the first looking at the first blossoming of Islamic theology and responses to the Greek philosophical tradition in the world of Arabic learning. This 'formative period' culminates with the work of Avicenna, the pivotal figure to whom most later thinkers feel they must respond. The second part of the book discusses philosophy in Muslim Spain (Andalusia), where Jewish philosophers come to the fore, though this is also the setting for such thinkers as Averroes and Ibn Arabi. Finally, a third section looks in unusual detail at later developments, touching on philosophy in the Ottoman, Mughal, and Safavid empires and showing how thinkers in the nineteenth to the twentieth century were still concerned to respond to the ideas that had animated philosophy in the Islamic world for centuries, while also responding to political and intellectual challenges from the European colonial powers. (shrink)

Through case studies on biodiversity, deforestation, pollution, and war, among others, Stoett analyzes the ability of international policy to provide environmental protection and discusses the ever-present factors of equality, sovereignty, and human rights integral to these issues. While providing a panoramic view of the actors and structures producing these policies. Stoett reminds readers that the topic is personal, that effective governance is not solely the responsibility of governments but of individuals and communities as well. Environmental diplomacy may not always meet (...) its intended goals, but positive steps are being achieved, and change can only happen when angst is replaced with an educated determination to work toward environmental justice. The Second Edition will explore new events, issues, and agreements since 2011; notably the Paris Agreement. The UN's Sustainable Development Goals (SDGs) will be a new theme added throughout and highlighted in each case study. (shrink)

The volume presents the views of ten authors from four PostCommunist Central and East European countries (Czech Republic, Slovakia, Poland and Latvia) on the impact of emerging technologies on human condition. They analyse the topic from anthropological, ethical, philosophical, ontological, empirical and legal perspectives.

Examines the common sense attractiveness of contextualism over invariantism, and ultimately takes such a common sense attractiveness to be a function of our intellectual habits as opposed to a reflection of objective fact. The claim that there do not exist semantic approaches that are more favorable than either contextualism or invariantism is made and argued for via an appeal to sortalism, superinvariantism, and supercontextualism, which are also rejected as brutally implausible. The possibility that any of these three semantic approaches might (...) be as good as either contextualism or invariantism merely serves to support semantic relativity. A foundation for semantic relativity is located within the vagueness of natural language terms. (shrink)

Applies the semantic relativism developed in the previous chapters to key terms in several philosophical debates in order to establish philosophical relativity. In all of these cases, invariantism forces the skeptical position whilst contextualism resonates with our common sense views. These philosophical debates and their relevant terms are the problem of epistemic skepticism via “know,” the problem of freewill and determinism as instanced by compatibilism and incompatibilism via “can” and “freewill,” the problem of specifying causal conditions via “cause,” and the (...) problem of explanation via “explanation.”,, and are straightforward categorical problems in that the skeptic's success will simply mean that the terms involved fail to apply. by contrast is a conditional problem such that it is contingent on the truth of determinism itself, which few assent to. (shrink)

Explores the distinction between the prevalent approach to ostensible intuitions, which takes such intuitions to be indicative of semantic conditions, and the broadly psychological approach, which does not. An attack is made against Kripke and Putnam's causal theory of reference via Putnam's Twin Earth thought experiments. Our responses to such examples may be distinguished into two types, a dominant response, and a dominated response. The common aspect to all demonstrable counterexamples to the causal theory of reference turns on the individual (...) differences among the responses. The prevalent approach must deny semantic competence to dissenting agents. We may maintain, in a relativist spirit, that there is no absolutely right answer in such cases. Kripke's distinction between epistemological examples and metaphysical examples is noted and the two are united in order to generate combined examples. The failure of the causal theory of reference to deal with any such examples in a successful and systematic way tells against the prospect of maintaining an internalized semantics. Historical and current versions of the causal theory of reference are explored, with neither accurately capturing our natural responses, strengthening the objection against the prevalent approach and supporting the broadly psychological approach, which in contrast to the prevalent approach attributes agents’ responses to the examples to their egocentric bias, which may not be fully rational. As such, the relativist now has a direct reply to the objection from semantic intuitions, this being that such common sense intuitions are not a function of an internalized semantics. Supposing that the broadly psychological approach is no stronger than the prevalent approach merely strengthens the relativist's position. (shrink)