In this paper, we consider the way that web documents seeking to persuade readers of certain science claims provide information about the sources of the arguments. Our quantitative analysis reveals that web documents in our sample include hundreds of examples in which the reader is provided information regarding the trustworthiness of sources. The web documents also contain a large number of examples in which the reader is provided with information about how many individuals hold a particular belief. We discuss ad (...) hominem, ad verecundiam, and ad populum arguments, and the way that the examples found in our sample of documents are related to these argumentation schemes. (shrink)

Zoé Chatzidakis , David Marker , Amador Martin-Pizarro , Rahim Moosa , Sergei Starchenko Source: Notre Dame J. Formal Logic, Volume 54, Number 3-4, 277--277.

The past twenty years have seen an increase in the importance of the body in psychology, neuroscience, and philosophy of mind. This 'embodied' trend challenges the orthodox view in cognitive science in several ways: it downplays the traditional 'mind-as-computer' approach and emphasizes the role of interactions between the brain, body, and environment. In this article, I review recent work in the area of embodied cognitive science and explore the approaches each takes to the ideas of consciousness, computation and representation. Finally, (...) I look at the current relationship between orthodox cognitive science and the study of mental disorder, and consider the implications that the embodied trend could have for issues in psychopathology. (shrink)

This paper explores the relationship between several ideas about the mind and cognition. The hypothesis of extended cognition claims that cognitive processes can and do extend outside the head, that elements of the world around us can actually become parts of our cognitive systems. It has recently been suggested that the hypothesis of extended cognition is entailed by one of the foremost philosophical positions on the nature of the mind: functionalism, the thesis that mental states are defined by their functional (...) relations rather than by their physical constituents. Furthermore, it has been claimed that functionalism entails a version of extended cognition which is sufficiently radical as to be obviously false. I survey the debate and propose several ways of avoiding this conclusion, emphasizing the importance of distinguishing the hypothesis of extended cognition from the related notion of the extended mind. (shrink)

was to test the role of both early and higher visual areas in the integration of local features into global shapes. To this end, we conducted functional magnetic resonance imaging studies. Although fMRI lacks the high spatial resolution of intracortical recordings, it allows simultaneous collection of responses to the same stimulus set from multiple visual areas that is not possible with standard recording techniques. We performed these studies in monkeys, where much is known about the properties of neurons in different (...) visual areas, and in humans, where recent fMRI.. (shrink)

As many studies around the theme of ‘too much medicine’ attest, investigations are being ordered with increasing frequency; similarly the threshold for providing treatment has lowered. Our contention is that trust is a significant factor in influencing this, and that understanding the relationship between trust and investigations and treatments will help clinicians and policymakers ensure ethical decisions are more consistently made. Drawing on the philosophical literature, we investigate the nature of trust in the patient–doctor relationship, arguing that at its core (...) it involves a transfer of discretion. We show that there is substantial empirical support for the idea that more trust will reduce the problem of too much medicine. We then investigate ways in which trust can be built, concentrating on issues of questioning, of acknowledging uncertainty and of shouldering responsibility for it. We argue that offering investigations or treatments as a way of generating trust may itself be an untrustworthy way of proceeding, and that healthcare systems should provide the institutional support for facilitating continuity, questioning and the entrusting of uncertainty. (shrink)

A novel problem or task may seem difficult at first, but with enough practice, it can become easy and routine. Practice and the process of learning is often accompanied by some mild cognitive uneas...

The “received wisdom” in contemporary analytic philosophy is that intuition talk is a fairly recent phenomenon, dating back to the 1960s. In this paper, we set out to test two interpretations of this “received wisdom.” The first is that intuition talk is just talk, without any methodological significance. The second is that intuition talk is methodologically significant; it shows that analytic philosophers appeal to intuition. We present empirical and contextual evidence, systematically mined from the JSTOR corpus and HathiTrust’s Digital Library, (...) which provide some empirical support for the second rather than the first hypothesis. Our data also suggest that appealing to intuition is a much older philosophical methodology than the “received wisdom” alleges. We then discuss the implications of our findings for the contemporary debate over philosophical methodology. (shrink)

This paper investigates the relationship between economic theory and theories of justice in the design of public policy. In particular, it focuses on the role of mechanism design in policy contexts beset with issues of social, racial and distributive justice. Economists’ involvement in redesigning Boston’s algorithm for allocating K-12 students to public schools serves as an instructive case study. The paper draws on the distinction betweenideal theoryandnon-ideal theoryin political philosophy and the concept ofperformativityin economic sociology to argue that mechanism design (...) can enact elaborate ideal theories of justice. Anormative gapthus emerges between the goals of the policymakers and the objectives of economic designs. As a result, mechanism design may obstruct stakeholders’ avenues for normative criticism of public policies, and serve as a technology of depoliticization. (shrink)

We have all become used to the rapid change around us, and with it, the shifting landscape of medical ethics. It appears, however, that the acceleration phase of change in biomedical sciences is only just beginning, and we need to be prepared for new challenges ahead. This issue of the journal considers several of them: in epigenome editing, 1 in bioprinting 2 and in cryonics. 3 With all of these developments, we need to be doing our ethical thinking proactively rather (...) than reactively; and we need to consider not only what we think the ethical problems might be but what frameworks we have for arguing how we should address them. There are several approaches that could be taken 4 each with their own advantages and limitations. The most fun—and the one we are perhaps best at—is to consider hypothetical scenarios, the ethical controversies associated with... (shrink)

Daniel Dennett's distinction between personal and subpersonal explanations was fundamental in establishing the philosophical foundations of cognitive science. Since it was first introduced in 1969, the personal/subpersonal distinction has been adapted to fit different approaches to the mind. In one example of this, the ‘Pittsburgh school’ of philosophers attempted to map Dennett's distinction onto their own distinction between the ‘space of reasons’ and the ‘space of causes’. A second example can be found in much contemporary philosophy of psychology, where Dennett's (...) distinction has been presumed to be equivalent to Stephen Stich's distinction between doxastic and subdoxastic states. Both these interpretations of the personal/subpersonal distinction, and also Dennett's own philosophical views of the mind, go beyond the personal/subpersonal distinction itself. They each involve supplementing the distinction between personal and subpersonal explanations with metaphysical claims about the relationship between the two kinds of explanation and the entities they posit. (shrink)

The role of audiences in mathematical proof has largely been neglected, in part due to misconceptions like those in Perelman and Olbrechts-Tyteca which bar mathematical proofs from bearing reflections of audience consideration. In this paper, I argue that mathematical proof is typically argumentation and that a mathematician develops a proof with his universal audience in mind. In so doing, he creates a proof which reflects the standards of reasonableness embodied in his universal audience. Given this framework, we can better understand (...) the introduction of proof methods based on the mathematician’s likely universal audience. I examine a case study from Alexander and Briggs’s work on knot invariants to show that we can fruitfully reconstruct mathematical methods in terms of audiences. (shrink)

This paper studies unbounded pseudo-algebraically closed fields and shows an amalgamation result for types over algebraically closed sets. It discusses various applications, for instance that omega-free PAC fields have the property NSOP3. It also contains a description of imaginaries in PAC fields.

Chapter 8 argues against the view that the moral rightness of an act is not a reason to perform it, and our reasons are instead the features that make the act right. Philosophers typically defend this view by noting that it seems redundant to take rightness to be an additional reason, once it has been acknowledged that the right-making features are already reasons. The author shows that this argument dramatically overgeneralizes, ruling out all cases in which two or more reasons (...) are arranged in relationships of metaphysical constitution. She then proposes an alternative way of thinking about these metaphysical hierarchies: Rather than assuming that at most one of the facts in each hierarchy is the “real” reason, bearing all the normative weight, it should be accepted that these facts can all be genuine reasons, whose normative weight is shared in virtue of the metaphysical relationships between them. Some tests are offered that can be used to determine which facts occur in metaphysical hierarchies with shared weight, and it is argued that the fact that an act is morally right passes the tests. The author then explains what she takes to be some kernels of truth underlying the redundancy argument, arguing that these phenomena are pragmatic, not metaphysical. (shrink)

In this paper, I claim that the personal/subpersonal distinction is first and foremost a distinction between two kinds of psychological theory or explanation: it is only in this form that we can understand why the distinction was first introduced, and how it continues to earn its keep. I go on to examine the different ontological commitments that might lead us from the primary distinction between personal and subpersonal explanations to a derivative distinction between personal and subpersonal states. I argue that (...) on one of the most common metaphysical interpretations of the explanatory distinction, talk of a distinction between personal and subpersonal states simply makes no sense. When people insist on applying the personal/subpersonal terminology to psychological states, I allow that they are often making a genuine distinction, but one that it is best understood in terms of Stich's (1978) distinction between doxastic and subdoxastic states. I end the paper by considering some other common misinterpretations of the personal/subpersonal distinction, such as those involving consciousness, normativity, or autonomy. (shrink)

Many philosophers subscribe to the view that philosophy is a priori and in the business of discovering necessary truths from the armchair. This paper sets out to empirically test this picture. If this were the case, we would expect to see this reflected in philosophical practice. In particular, we would expect philosophers to advance mostly deductive, rather than inductive, arguments. The paper shows that the percentage of philosophy articles advancing deductive arguments is higher than those advancing inductive arguments, which is (...) what we would expect from the vantage point of the armchair philosophy picture. The results also show, however, that the percentages of articles advancing deductive arguments and those advancing inductive arguments are converging over time and that the difference between inductive and deductive ratios is declining over time. This trend suggests that deductive arguments are gradually losing their status as the dominant form of argumentation in philosophy. (shrink)

This paper presents a case for the decriminalisation of abortion in Britain in light of the increasing investigations into people experiencing pregnancy loss and prosecutions of those suspected of illegal abortion. This growing enforcement of the criminal abortion offences has coincided with the legal change to allow the home use of abortion pills through telemedicine, and comes in the context of global backlash against abortion rights. Framing abortion as a necessary healthcare service and human right, this paper demonstrates the harms (...) caused by criminalisation and highlights how the law exacerbates socio-economic and other vulnerabilities. It is later illegal abortions that tend to be prosecuted, and while there are complex reasons as to why someone might require an abortion, the law prohibits abortion beyond 24 weeks except for narrow medical reasons, creating crisis situations for those that find themselves without legal access. Decriminalisation is necessary to move away from this culture of suspicion, hostility, and stigma that has been built around abortion. (shrink)

Expanded non-invasive prenatal testing (NIPT) has provoked ethical concerns about its justifiable scope. In this paper, we evaluate the role of the child’s right to an open future in setting the scope of NIPT. This ‘open future principle’ has been cited in arguments both limiting and expanding parental freedoms. This moral right holds that adult autonomy rights which children cannot yet exercise should nonetheless be protected until they can. Its purpose is to protect the future autonomy of the child as (...) a future adult. Several authors have extended this rationale from child to fetus. However, the right was not anticipated to apply to the fetus, a non-legal entity in many jurisdictions. The aim of this paper is to reconsider whether this principle is useful to help deliberate the scope of NIPT. We find that extending the open future principle to delineate the scope of NIPT is theoretically flawed. We contend that in the prenatal context its value primarily lies with counselling for prenatal screening where it can be used to encourage parents’ reflection on the implications of knowing for the sake of knowing on their future children and their relationship with them. (shrink)

It is this question which occupied Hannah Arendt throughout most of her life, and which will form the crux of this article. I wish to explore whether critical thought holds the potential to rescue us from the crisis of the ‘moral point of no return’, by allowing us to recognise it. Arendt, and later Zygmunt Bauman, call for critical thinking as a way out of evil. Critical thought being something that they conflate with morality. They both attempt to demonstrate the (...) decline of morality and its separation from legality/rationality under modernity. Bauman needs these assumptions to show how cold rationality eclipses morality and his subsequent appeal to persistent, but not socially grounded individual morality as remedy. For Arendt, the perceived lack of thought by the ‘perpetrators’ lays the foundation of her call to critical thinking as remedy; but similarly heralds a process of pure ethics. This article argues that although they both argue for more morality, morality cannot in fact disappear. (shrink)

Language provides rich social information about its speakers. For instance, adults and children make inferences about a speaker's social identity, geographic origins, and group membership based on her language and accent. Although infants prefer speakers of familiar languages, little is known about the developmental origins of humans’ sensitivity to language as marker of social identity. We investigated whether 9-month-olds use the language a person speaks as an indicator of that person's likely social relationships. Infants were familiarized with videos of two (...) people who spoke the same or different languages, and then viewed test videos of those two individuals affiliating or disengaging. Results suggest that infants expected two people who spoke the same language to be more likely to affiliate than two people who spoke different languages. Thus, infants view language as a meaningful social marker and use language to make inferences about third-party social relationships. (shrink)

A unique concept: 40 extraordinary people give answers to 10 searching questions about their beliefs. In our current age of uncertainty and turmoil, this is a book to give insight for life's journey and to encourage readers to confront the same questions themselves. "My suggestion or advice is very simple; that is, to have a sincere heart." - The Dalai Lama What Has Life Taught You? features the answers given by 40 outstanding people to 10 profound questions about life, the (...) mind and the spirit. Author Zoë Sallis has a passion for stirring up debate on philosophical and ethical questions and journeyed all over the globe to ask well-known figures of widely varying beliefs the same 10 questions. Interviewees include: Nelson Mandela His Holiness the Dalai Lama Neale Donald Walsch Anjelica Huston Jack Nicholson Sophia Loren Teale Swan Richard Dawkins David Lynch Gore Vidal And more... The questions range from "What is your concept of God?" and "Do you think this life is all there is, or do you believe in an afterlife?" to "What has life taught you so far?" and "How do you find peace within yourself?" Socrates thought the unexamined life was not worth living, and perhaps that is why he roamed the streets of Athens accosting people and asking them their thoughts and beliefs. By sharing the wisdom of these truly inspiring people, the book hopes to provoke debate and encourage readers to examine what they have learned on their life journey so far and share their own insights with others. (shrink)

This unpublished article was written around 2009 for a journal special issue of a journal which never materialized. In 2018, the article was rewritten and published in the Oxford Handbook of Philosophy and Disability. It can be found on PhilPapers as Drayson and Clark (2018), 'Cognitive Disability and the Embodied, Extended Mind'.

Do epistemic and aesthetic values ever conflict? The answer might appear to be no, given that background knowledge generally enhances aesthetic experience, and aesthetic experience in turn generates new knowledge. As Keats writes, ‘Beauty is truth, truth beauty’ (Keats, 1996). Contra this line of thought, I argue that epistemic and aesthetic values can conflict when we over-rely on aesthetically enhancing background beliefs. The true and the beautiful can pull in different directions, forcing us to choose between flavours of normativity.

The use of genetically modified organisms in agriculture makes great promises of better seeds, but also raises many controversies about ownership of seeds and about potential hazards. I suggest that owners of these seeds bear the responsibility to do no harm in using these seeds. After defining the nature of this responsibility, this paper asks, if ownership entails moral responsibility, and ownership can be transferred, then how is moral responsibility transferred? Building on the literature on use plans, I suggest five (...) conditions for a good transfer of moral responsibility for genetically modified seeds. I also look at the Monsanto Technology Use Guide and Technology/Stewardship Agreement, as an examplar of a use plan, to explore the extent to which these conditions are present. I conclude that use plans can play a role in the distribution and transfer of moral responsibility for technologies with high benefits and potential harmful uncertainties. (shrink)

BackgroundInternationally, patient access to notes is increasing. This has been driven by respect for patient autonomy, often recognised as a primary tenet of medical ethics: patients should be able to access their records to be fully engaged with their care. While research has been conducted on the impact of patient access to outpatient and primary care records and to patient portals, there is no such review looking at access to hospital medical records in real time, nor an ethical analysis of (...) the issues involved in such a change in process.MethodsThis study employed a systematic review framework in two stems, to integrate literature identified from two searches: Medline, CINAHL and Scopus databases were conducted, (for (1) hospitalised patients, patient access to records and its effects on communication and trust within the doctor-patient relationship; and (2) patient access to medical records and the ethical implications identified). The qualitative and quantitative results of both searches were integrated and critically analysed.Results3954 empirical and 4929 ethical studies were identified; 18 papers representing 16 studies were identified for review (12 empirical and 6 ethical). The review reveals a consensus that our current approach to giving information to patients – almost exclusively verbally – is insufficient; that patient access to notes is a welcome next step for patient-centred care, but that simply allowing full access, without explanation or summary, is also insufficient. Several ethical implications need to be considered: increased information could improve patient trust and knowledge but might transfer an (unwelcome) sense of responsibility to patients; doctors and patients have conflicting views on how much information should be shared and when; sharing written information might increase the already significant disparity in access to health care, and have unforeseen opportunity costs. The impact on medical practice of sharing notes in real time will also need to be evaluated.ConclusionsThe review presents encouraging data to support patient access to medical notes. However, sharing information is a critical part of clinical practice; changing how it is done could have significant empirical and ethical impacts; any changes should be carefully evaluated. (shrink)

Recognizing and aligning individuals’ unique adaptive beliefs or “priors” through cooperative communication is critical to establishing a therapeutic relationship and alliance. Using active inference, we present an empirical integrative account of the biobehavioral mechanisms that underwrite therapeutic relationships. A significant mode of establishing cooperative alliances—and potential synchrony relationships—is through ostensive cues generated by repetitive coupling during dynamic touch. Established models speak to the unique role of affectionate touch in developing communication, interpersonal interactions, and a wide variety of therapeutic benefits for (...) patients of all ages; both neurophysiologically and behaviorally. The purpose of this article is to argue for the importance of therapeutic touch in establishing a therapeutic alliance and, ultimately, synchrony between practitioner and patient. We briefly overview the importance and role of therapeutic alliance in prosocial and clinical interactions. We then discuss how cooperative communication and mental state alignment—in intentional communication—are accomplished using active inference. We argue that alignment through active inference facilitates synchrony and communication. The ensuing account is extended to include the role of tactile afferents in realizing the beneficial effect of therapeutic synchrony. We conclude by proposing a method for synchronizing the effects of touch using the concept of active inference. (shrink)

We propose a new dynamic hybrid logic to reason about social networks and their dynamics building on the work of “Logic in the Community” by Seligman, Liu and Girard. Our framework distinguishes between the purely private sphere of agents, namely their mental states, and the public sphere of their observable behavior, i.e., what they seem to believe. We then show how such a distinction allows our framework to model many social phenomena, by presenting the case of pluralistic ignorance as an (...) example and discussing some of its dynamic properties. (shrink)

This article builds on existing feminist literature on obstetric violence in the context of childbirth to argue that there is a continuum of obstetric violence that also includes that perpetuated in relation to pregnancy prevention and termination, as well as antenatal healthcare and birth. This structural violence is highlighted in relation to conscientious objection, the reporting of people suspected of illegal abortions by their healthcare providers, and contraceptive coercion. Recognizing the limitations of criminal and human rights approaches to obstetric violence, (...) this article takes Martha Fineman’s vulnerability theory as the foundation for the transformative structural change of healthcare institutions. (shrink)

Detecting conscious awareness in a patient emerging from a coma state is problematic, because our standard attributions of conscious awareness rely on interpreting bodily movement as intentional action. Where there is an absence of intentional bodily action, as in the vegetative state, can we reliably assume that there is an absence of conscious awareness? Recent neuroimaging work suggests that we can attribute conscious awareness to some patients in a vegetative state by interpreting their brain activity as intentional mental action. I (...) suggest that this change of focus, from the interpretation of motor behaviour as intentional bodily action to the interpretation of neural activity as intentional mental action, raises philosophical issues that affect the interpretation of the neuroimaging data. (shrink)

The Declaration of Geneva is one of the core documents of medical ethics. A revision process was started by the World Medical Association in 2016. The WMA has also used this occasion to examine how the Declaration of Geneva is used in countries throughout the world by conducting a survey of all WMA constituent members. The findings are highly important and raise urgent questions for the World Medical Association and its National Medical Associations : The Declaration of Geneva is only (...) rarely used as an oath text despite the fact that physicians’ oaths are generally widespread. This is not consistent with the intention and claim of the Declaration of Geneva. The article then discusses three questions. Should there be one single binding oath? Which organization should be responsible for such an oath? Which oath is the most obvious candidate? In a globalized world and despite all cultural diversity, the medical profession should have one core moral basis which is binding for physicians all over the world. The most obvious candidate for an oath incorporating this moral basis is the Declaration of Geneva. (shrink)

In many social contexts, social influence seems to be inescapable: the behavior of others influences us to modify ours, and vice-versa. However, social psychology is full of examples of phenomena where individuals experience a discrepancy between their public behavior and their private opinion. This raises two central questions. First, how does an individual reason about the behavior of others and their private opinions in situations of social influence? And second, what are the laws of the resulting information dynamics? In this (...) paper, we address these questions by introducing a formal framework for representing reasoning about an individual’s private opinions and public behavior under the dynamics of social influence in social networks. Moreover, we dig deeper into the involved information dynamics by modeling how individuals can learn about each other based on this reasoning. This compels us to introduce a new formal notion of reflective social influence. Finally, we initialize the work on proof theory and automated reasoning for our framework by introducing a sound and complete tableaux system for a fragment of our logic. Furthermore, this constitutes the first tableau system for the “Facebook logic” of J. Seligman, F. Liu, and P. Girard. (shrink)

In Thinking and Perceiving, Stokes challenges “the pernicious cognitive effects assumption”: the assumption that it would be epistemically problematic if our thoughts were to directly influence our perceptual experience. In doing so, Stokes takes himself to be supplementing the epistemological claims of philosophers like Siegel and Lyons with descriptive claims about human psychology. I argue that his conclusions are more radical than they first appear, to the extent that Stokes’s project is at odds with the standard epistemological discussions of cognitive (...) penetration. (shrink)

Testimonial accounts of mathematical problem choice typically rely on intrinsic constraints. They focus on the worth of the problem and feelings of beauty. These are often developed as both descriptive and normative constraints on problem choice. In this paper, I aim to add an extrinsic constraint of no less importance: the assurance of contact of minds with a desired audience. A number of elements for the relationship between mathematician and his audience make up this contact. This constraint stems from the (...) mathematician’s role as an arguer, as one of the pre-requisites to argumentation is contact of minds. I examine two exceptional cases which fail to be explained by intrinsic constraints on motivation and posit how this contact could influence usual cases. While not the only constraint or drive in problem choice, establishing contact of minds plays an important role worth further examination. (shrink)

According to a traditional picture, perception and belief have starkly different epistemic roles. Beliefs have epistemic statuses as justified or unjustified, depending on how they are formed and maintained. In contrast, perceptions are “unjustified justifiers.” Core cognition is a set of mental systems that stand at the border of perception and belief, and has been extensively studied in developmental psychology. Core cognition's borderline states do not fit neatly into the traditional epistemic picture. What is the epistemic role of these states? (...) Focusing on the core object system, the author argues that core object representations have epistemic statuses like beliefs do, despite their many prototypically perceptual features. First, the author argues that it is a sufficient condition on a mental state's having an epistemic status as justified or unjustified that the state is based on reasons. Then the author argues that core object representations are based on reasons, through an examination of both experimental results and key markers of the basing relation. The scope of mental states that are subject to epistemic evaluation as justified or unjustified is not restricted to beliefs. (shrink)

Church has contributed a lot to the safeguard of G. Frege's theory of meaning after the discovery of antinomies in it. To achieve this he has adapted it by keeping parts, discarding others and adding new ones, most of which are clearly exposed in an informal way in the introduction to his Introduction to Mathematical Logic. As for any modification of a theory by another person, it is interesting to understand how the thoughts of the former survive in the new (...) theory even though radical changes have occurred, or on the contrary how it retains only the appearance of the initial theory. We shall therefore go through the basic concepts of logic he introduces in this introduction and assess their relation to Frege's original theory. (shrink)

The perplexities Spinoza's Ethics tends to produce in the reader–far from diminishing through repetition–tend to deepen as the text is read again and its understanding beomes keener. In this regard, one of the question that arises from meditations of E.II/7 concerns the possibility of knowing something that our body does not feel. Expounding on this problem and on a possible resolution will allow us to delve deeper in the machinery of Ethics II and bring out the core pedagogical structure at (...) play. (shrink)

Perceptual experiences are not immediately responsive to reasons. You see a stick submerged in a glass of water as bent no matter how much you know about light refraction. Due to this isolation from reasons, perception is traditionally considered outside the scope of epistemic evaluability as justified or unjustified. Is perception really as independent from reasons as visual illusions make it out to be? I argue no, drawing on psychological evidence from perceptual learning. The flexibility of perceptual learning is a (...) way of responding to new epistemic reasons. The resulting perceptual experiences are epistemically evaluable as justified or unjustified. (shrink)

Fictionalists propose that some apparently fact-stating discourses do not aim to convey factual information about the world, but rather allow us to engage in a fiction or pretense without incurring ontological commitments. Some philosophers have suggested that using mathematical, modal, or moral discourse, for example, need not commit us to the existence of mathematical objects, possible worlds, or moral facts. The mental fictionalist applies this reasoning to our mental discourse, suggesting that we can use ‘belief’ and ‘desire’ talk without committing (...) to the existence of beliefs and desires as mental entities. Most arguments for mental fictionalism are based on two key suppositions: first, that there are ontological concerns about mental entities; and second, that these ontological concerns justify a fictionalist interpretation of mental discourse. This paper challenges both suppositions and argues that the standard arguments for mental fictionalism are substantially weaker than arguments for other forms of fictionalism in the philosophical literature. (shrink)