On a now orthodox view, humans and many other animals possess a “number sense,” or approximate number system, that represents number. Recently, this orthodox view has been subject to numerous critiques that question whether the ANS genuinely represents number. We distinguish three lines of critique – the arguments from congruency, confounds, and imprecision – and show that none succeed. We then provide positive reasons to think that the ANS genuinely represents numbers, and not just non-numerical confounds or exotic substitutes for (...) number, such as “numerosities” or “quanticals,” as critics propose. In so doing, we raise a neglected question: numbers of what kind? Proponents of the orthodox view have been remarkably coy on this issue. But this is unsatisfactory since the predictions of the orthodox view, including the situations in which the ANS is expected to succeed or fail, turn on the kind of number being represented. In response, we propose that the ANS represents not only natural numbers, but also non-natural rational numbers. It does not represent irrational numbers, however, and thereby fails to represent the real numbers more generally. This distances our proposal from existing conjectures, refines our understanding of the ANS, and paves the way for future research. (shrink)

Philosophy, scientific psychology, and common sense all distinguish perception from cognition. While there is little agreement about how the perception–cognition boundary ought to be drawn, one prominent idea is that perceptual states are dependent on a stimulus, or stimulus-dependent, in a way that cognitive states are not. This paper seeks to develop this idea in a way that can accommodate two apparent counterexamples: hallucinations, which are prima facie perceptual yet stimulus-independent; and demonstrative thoughts, which are prima facie cognitive yet stimulus-dependent. (...) The payoff is not only a specific proposal for marking the perception–cognition boundary, but also a deeper understanding of the natures of hallucination and demonstrative thought. (shrink)

In The Border between Seeing and Thinking, Ned Block argues that the distinction between perception and cognition should be grounded in representational format. I object that cognition is multifaceted, and includes representations with the same format as some perceptual representations. We can save Block’s view by interpreting it as concerning the border between one elite species of cognition—namely, propositional thought—and everything below it, including perception. But that leaves the border between perception and cognition in general unexplained. To fill this gap, (...) I recommend my stimulus-dependence account of the border and reply to objections Block raises against it. This brings into relief a category of mind that is crucial to understanding human infants and nonhuman animals—namely, nonpropositional cognition, which sits between perception and propositional thought. (shrink)

In the 1980s, a number of philosophers argued that perception is analog. In the ensuing years, these arguments were forcefully criticized, leaving the thesis in doubt. This paper draws on Weber’s Law, a well-entrenched finding from psychophysics, to advance a new argument that perception is analog. This new argument is an adaptation of an argument that cognitive scientists have leveraged in support of the contention that primitive numerical representations are analog. But the argument here is extended to the representation of (...) non-numerical magnitudes, such as luminance and distance, and shown to apply to perception and not just cognition. The relevant sense of ‘analog’ is also clarified, and two powerful objections are addressed. Finally, the question whether perception’s analog vehicles are located in conscious experience is explored and related to a well-known controversy within psychophysics. (shrink)

The distinction between perception and cognition frames countless debates in philosophy and cognitive science. But what, if anything, does this distinction actually amount to? In this introductory article, we summarize recent work on this question. We first briefly consider the possibility that a perception-cognition border should be eliminated from our scientific ontology, and then introduce and critically examine five positive approaches to marking a perception–cognition border, framed in terms of phenomenology, revisability, modularity, format, and stimulus-dependence.

According to the Generality Constraint, mental states with conceptual content must be capable of recombining in certain systematic ways. Drawing on empirical evidence from cognitive science, I argue that so-called analogue magnitude states violate this recombinability condition and thus have nonconceptual content. I further argue that this result has two significant consequences: it demonstrates that nonconceptual content seeps beyond perception and infiltrates cognition; and it shows that whether mental states have nonconceptual content is largely an empirical matter determined by the (...) structure of the neural representations underlying them. (shrink)

Empirical discussions of mental representation appeal to a wide variety of representational kinds. Some of these kinds, such as the sentential representations underlying language use and the pictorial representations of visual imagery, are thoroughly familiar to philosophers. Others have received almost no philosophical attention at all. Included in this latter category are analogue magnitude representations, which enable a wide range of organisms to primitively represent spatial, temporal, numerical, and related magnitudes. This article aims to introduce analogue magnitude representations to a (...) philosophical audience by rehearsing empirical evidence for their existence and analysing their format, their content, and the computations they support. 1 Background1.1 Evidence of analogue magnitude representations1.2 Weber’s law1.3 Scepticism about analogue magnitude representations2 Format2.1 Carey’s analogy2.2 Neural realization2.3 Analogue representation2.4 Analogue magnitude representation components3 Content3.1 Do analogue magnitude representations have representational content?3.2 What do analogue magnitude representations represent?3.3 What content types do analogue magnitude representations have?4 Computations4.1 Arithmetic computation4.2 Practical deliberation5 Conclusion. (shrink)

John Morrison has argued that confidences are assigned in perceptual experience. For example, when you perceive a figure in the distance, your experience might assign a 55-percent confidence to the figure’s being Isaac. Morrison’s argument leans on the phenomenon of ‘completely trusting your experience’. I argue that Morrison presupposes a problematic ‘importation model’ of this familiar phenomenon, and propose a very different way of thinking about it. While the article’s official topic is whether confidences are assigned in perceptual experience, it (...) is also about two more general issues: how we can determine which properties are assigned in perceptual experience; and how we transition from perception to belief. (shrink)

Building on Christopher Peacocke’s account of analog perceptual contentand my own account of analog perceptual vehicles, I defend three claims: that theperception of magnitudes often has analog contents; that the perception of magni-tudes often has analog vehicles; and that the first claim is true in virtue of the second—that is, the analog vehicles help to ground the analog contents.

While philosophers have been interested in animals since ancient times, in the last few decades the subject of animal minds has emerged as a major topic in philosophy. _The Routledge Handbook of Philosophy of Animal Minds_ is an outstanding reference source to the key topics, problems and debates in this exciting subject and is the first collection of its kind. Comprising nearly fifty chapters by a team of international contributors, the _Handbook_ is divided into eight parts: Mental representation Reasoning and (...) metacognition Consciousness Mindreading Communication Social cognition and culture Association, simplicity, and modeling Ethics. Within these sections central issues, debates and problems are examined, including: whether and how animals represent and reason about the world; how animal cognition differs from human cognition; whether animals are conscious; whether animals represent their own mental states or those of others; how animals communicate; the extent to which animals have cultures; how to choose among competing models and explanations of animal behavior; and whether animals are moral agents and/or moral patients; The Routledge Handbook of Philosophy of Animal Minds is essential reading for students and researchers in philosophy of mind, philosophy of psychology, ethics and related disciplines such as ethology, biology, psychology, linguistics and anthropology. (shrink)

Susan Carey's account of Quinean bootstrapping has been heavily criticized. While it purports to explain how important new concepts are learned, many commentators complain that it is unclear just what bootstrapping is supposed to be or how it is supposed to work. Others allege that bootstrapping falls prey to the circularity challenge: it cannot explain how new concepts are learned without presupposing that learners already have those very concepts. Drawing on discussions of concept learning from the philosophical literature, this article (...) develops a detailed interpretation of bootstrapping that can answer the circularity challenge. The key to this interpretation is the recognition of computational constraints, both internal and external to the mind, which can endow empty symbols with new conceptual roles and thus new contents. (shrink)

Over the past 50 years, philosophers and psychologists have perennially argued for the existence of analog mental representations of one type or another. This study critically reviews a number of these arguments as they pertain to three different types of mental representation: perceptual representations, imagery representations, and numerosity representations. Along the way, careful consideration is given to the meaning of “analog” presupposed by these arguments for analog mental representation, and to open avenues for future research.

Realists about animal cognition confront a puzzle. If animals have real, contentful cognitive states, why can’t anyone say precisely what the contents of those states are? I consider several possible resolutions to this puzzle that are open to realists, and argue that the best of these is likely to appeal to differences in the format of animal cognition and human language.

In our target article, we argued that the number sense represents natural and rational numbers. Here, we respond to the 26 commentaries we received, highlighting new directions for empirical and theoretical research. We discuss two background assumptions, arguments against the number sense, whether the approximate number system represents numbers or numerosities, and why the ANS represents rational numbers.

I summarize and critically review Block's book, focusing on his format-based account of the border between perception and cognition and his argument for the phenomenal overflow of color perception.

Drawing on the empirical premise that attention makes objects look more intense, Ned Block has argued for mental paint, a phenomenal residue that cannot be reduced to what is perceived or represented. If sound, Block's argument would undermine direct realism and representationism, two widely held views about the nature of conscious perception. We argue that Block's argument fails because the empirical premise it is based upon is false. Attending to an object alters its salience, but not its perceived intensity. We (...) also argue that salience should be equated with mental primer, a close cousin of mental paint that reintroduces difficulties for direct realism and representationism. The upshot is that direct realism and representationism are still in trouble, but not for the reason that Block thinks. (shrink)

This paper surveys and evaluates the answers that philosophers and animal researchers have given to two questions. Do animals have thoughts? If so, are their thoughts conceptual? Along the way, special attention is paid to distinguish debates of substance from mere battles over terminology, and to isolate fruitful areas for future research.

Perceptual experience supports the assignment of confidences in belief – doxastic confidences. To explain this fact, many philosophers appeal to Perceptual Indeterminacy, which holds that perceptual content can be more or less determinate. Others instead appeal to Perceptual Confidence, which says that perceptual experience supports doxastic confidences because it assigns confidences too. Morrison argues that a primary reason to favour Perceptual Confidence is that it is uniquely capable of accounting for bell-shaped doxastic confidence distributions; we call this the bell curve (...) objection to Perceptual Indeterminacy. Here we show that two recent defences of Perceptual Indeterminacy, due to Nanay and Raleigh and Vindrola, fail to adequately address the bell curve objection. But we also argue that all is not lost for proponents of Perceptual Indeterminacy. They can counter the bell curve objection by embracing a third view, which we call Perceptual Noise. (shrink)

Relationalism maintains that mind-independent objects are essential constituents of veridical perceptual experiences. According to the argument from hallucination, relationalism is undermined by perfect hallucinations, experiences that are introspectively indistinguishable from veridical perceptual experiences but lack an object. Recently, a new wave of relationalists have responded by questioning whether perfect hallucinations are possible: what seem to be perfect hallucinations may really be something else, such as illusions, veridical experiences of non-obvious objects, or experiences that are not genuinely possible. This paper argues (...) that however well new wave relationalism may handle brains in vats, drug users “seeing” pink elephants, and other extraordinary hallucinations, it struggles to accommodate mundane hallucinations, such as “hearing” your child cry out from the room down the hall when she is actually sound asleep or “feeling” vibrations on your thigh even when your phone isn't in your pocket. Mundane hallucinations are best explained as byproducts of noise in the perceptual system, and noise-induced hallucinations are resistant to the strategies that new wave relationalists deploy to explain away other hallucinations. Mundane hallucinations can thus underpin an especially powerful version of the argument from hallucination. (shrink)

I reply to comments by David Miguel Gray and Grant Gillett concerning my paper, ‘The Generality Constraint and the Structure of Thought’.

The existence of superstition and religious beliefs in most, if not all, human societies is puzzling for behavioral ecology. These phenomena bring about various fitness costs ranging from burial objects to celibacy, and these costs are not outweighed by any obvious benefits. In an attempt to resolve this problem, we present a verbal model describing how humans and other organisms learn from the observation of coincidence (associative learning). As in statistical analysis, learning organisms need rules to distinguish between real patterns (...) and randomness. These rules, which we argue are equivalent to setting the level of α for rejection of the null hypothesis in statistics, are governed by risk management as well as by comparison to previous experiences. Risk management means that the cost of a possible type I error (superstition) has to be traded off against the cost of a possible type II error (ignorance). This trade-off implies that the occurrence of superstitious beliefs is an inevitable consequence of an organism’s ability to learn from observation of coincidence. Comparison with previous experiences (as in Bayesian statistics) improves the chances of making the right decision. While this Bayesian approach is found in most learning organisms, humans have evolved a unique ability to judge from experiences whether a candidate subject has the power to mechanistically cause the observed effect. Such “strong” causal thinking evolved because it allowed humans to understand and manipulate their environment. Strong causal thinking, however, involves the generation of hypotheses about underlying mechanisms (i.e., beliefs). Assuming that natural selection has favored individuals that learn quicker and more successfully than others owing to (1) active search to detect patterns and (2) the desire to explain these patterns mechanistically, we suggest that superstition has evolved as a by-product of the first, and that belief has evolved as a by-product of the second. (shrink)

This paper draws on recent work by John Clarke and Janet Newman and their colleagues to analyse a relatively coherent governmental project, spanning the decades of Conservative and New Labour government in England since 1979, that has sought to render teachers increasingly subservient to the state and agencies of the state. Under New Labour this has involved discourse and policies aimed at transforming teaching into a 'modernised profession'. It is suggested that this appropriation of both the concept and substance of (...) professionalism involves an attempt to silence debate about competing conceptions of what it might to be a professional or to act professionally. The overall process is thus arguably one of de-professionalisation in the guise of re-professionalisation. (shrink)

It is inevitable that some inmates in large state prison systems will suffer from terminal conditions and die while incarcerated. But how those inmates experience that event is primarily controlled by correctional policies and by the prison medical and correctional staff assigned to their care. Compassion for inmates who are dying cannot be legislated or mandated, but humane and compassionate care for the dying can be facilitated or thwarted by legislative and correctional policies, and by the manner in which correctional (...) personnel interpret those policies.Death in New York State prisons is a frequent event, occurring at a rate substantially higher than that in most other states. With a prison population that has risen to 70,000 inmates and with the nation’s highest rate of human immunodeficiency virus infection, more than 2,817 inmates died in New York prisons during the period 1990-1998. In April 1992, in the face of an ever-increasing death rate in its prisons, the New York State legislature passed the Medical Parole Law, a measure designed to permit dying inmates to be released on parole prior to their normal release eligibility date. (shrink)

It is inevitable that some inmates in large state prison systems will suffer from terminal conditions and die while incarcerated. But how those inmates experience that event is primarily controlled by correctional policies and by the prison medical and correctional staff assigned to their care. Compassion for inmates who are dying cannot be legislated or mandated, but humane and compassionate care for the dying can be facilitated or thwarted by legislative and correctional policies, and by the manner in which correctional (...) personnel interpret those policies.Death in New York State prisons is a frequent event, occurring at a rate substantially higher than that in most other states. With a prison population that has risen to 70,000 inmates and with the nation’s highest rate of human immunodeficiency virus infection, more than 2,817 inmates died in New York prisons during the period 1990-1998. In April 1992, in the face of an ever-increasing death rate in its prisons, the New York State legislature passed the Medical Parole Law, a measure designed to permit dying inmates to be released on parole prior to their normal release eligibility date. (shrink)

Imagine hosting a party. You arrange snacks, curate a playlist and place a variety of beers in the refrigerator. Your first guest shows up, adding a six-pack before taking one bottle for himself. You watch your next guest arrive and contribute a few more beers, minus one for herself. Ready for a drink, you open the fridge and are surprised to find only eight beers remaining. You haven't been consciously counting the beers, but you know there should be more, so (...) you start poking around. Sure enough, in the crisper drawer, behind a rotting head of romaine, are several bottles. (shrink)

On a now orthodox view, humans and many other animals are endowed with a “number sense”, or approximate number system (ANS), that represents number. Recently, this orthodox view has been subject to numerous critiques, with critics maintaining either that numerical content is absent altogether, or else that some primitive analog of number (‘numerosity’) is represented as opposed to number itself. We distinguish three arguments for these claims – the arguments from congruency, confounds, and imprecision – and show that none succeed. (...) We then highlight positive reasons for thinking that the ANS genuinely represents numbers. The upshot is that proponents of the orthodox view should not feel troubled by recent critiques of their position. (shrink)

Progressives have advocated reforms of rules governing corporations to achieve greater distributive justice, but Maitland (2001) hasargued that corporate rules are distributively neutral and that changing the rules will have no long run impact on distributive justice. These different conclusions stem from the use of two different methods of economic analysis, partial equilibrium and general equilibrium models. A change in the rules governing corporations in a “large” sector of the economy is appropriately analyzed using a general equilibrium analysis, supporting the (...) conclusion that changes in the rules may affect distributive justice in the long run. However, a partial equilibrium analysis of a change in the rules of corporations affecting a “small” part of the economy such as asingle firm or even all firms in a small state supports the claim that such changes cannot affect distributive justice. (shrink)

This paper critiques what it sees as a tendency on the part of certain social researchers to engage in moralistic critiques of middle-class parents, especially in relation to the choices and actions of such parents within educational quasi-markets. It proceeds to a linked critique of the influence within education of certain aspects of the work of Pierre Bourdieu, with particular reference to the concepts of symbolic violence and the depiction of cultural meanings as arbitrary. It is argued that both these (...) developments involve unhelpful and unjustified forms of reductionism that could have the effect of alienating middle-class support for a range of broadly progressive political endeavours within and beyond education. (shrink)

Predictability is a prerequisite for effective human control of artificial intelligence (AI). The inability to predict malfunctioning of AI, for example, impedes timely human intervention. In this paper, we empirically investigate how AI’s predictability compares to the predictability of humans in a real-effort task. We show that humans are worse at predicting AI performance than at predicting human performance. Importantly, participants are not aware of the differences in relative predictability of AI and overestimate their prediction skills. These results raise doubts (...) about the human ability to effectively exercise control of AI — at least in certain contexts. (shrink)

This paper addresses the somewhat neglected topic of envy and its relationship to education and social inequality in Britain. Drawing on the work of Rawls, Runciman and Crosland, the paper proposes a distinction between envy as a vice and 'justified resentment' aroused by perceived injustices in the social distribution of primary goods, including education. Various pejorative uses of the term 'the politics of envy' in UK politics are examined. The conditions necessary for a politics of justified resentment are then analysed. (...) Current developments in higher education in the UK are discussed with reference to signs of the emergence of new social resentments among the relatively highly educated. Prospects for a wider politics of justified resentment are assessed in relation to a range of emergent policies and priorities of New Labour in government. (shrink)

The current U.S. health care system, with both rising costs and demands, is unsustainable. The combination of a sense of individual entitlement to health care and limited acceptance of individual responsibility with respect to personal health has contributed to a system which overspends and underperforms. This sense of entitlement has its roots in a perceived right to health care. Beginning with the so-called moral right to health care, the issue of who provides health care has evolved as individual rights have (...) trumped societal rights. The concept of government providing some level of health care ranges from limited government intervention, a ‘negative right to health care’, to various forms of a ‘positive right to health care’. The latter ranges from a decent minimum level of care to the best possible health care with access for all. We clarify the concept of legal rights as an entitlement to health care and present distributive and social justice counter arguments to present health care as a privilege that can be provided/earned/altered/revoked by governments. We propose that unlike a ‘right’, which is unconditional, a ‘privilege’ has limitations. Going forward, expectations about what will be made available should be lowered while taking personal responsibility for one’s health must for elevated. To have access to health care in the future will mean some loss of personal rights and an increase in personal responsibility for gaining or maintaining one’s health. (shrink)

Progressives have advocated reforms of rules governing corporations to achieve greater distributive justice, but Maitland (2001) hasargued that corporate rules are distributively neutral and that changing the rules will have no long run impact on distributive justice. These different conclusions stem from the use of two different methods of economic analysis, partial equilibrium and general equilibrium models. A change in the rules governing corporations in a “large” sector of the economy is appropriately analyzed using a general equilibrium analysis, supporting the (...) conclusion that changes in the rules may affect distributive justice in the long run. However, a partial equilibrium analysis of a change in the rules of corporations affecting a “small” part of the economy such as asingle firm or even all firms in a small state supports the claim that such changes cannot affect distributive justice. (shrink)

Modes of presentation are often posited to accommodate Frege’s puzzle. Philosophers differ, however, in whether they follow Frege in identifying modes of presentation with Fregean senses, or instead take them to be formally individuated symbols of “Mentalese”. Building on Fodor, Margolis and Laurence defend the latter view by arguing that the mind-independence of Fregean senses renders them ontologically suspect in a way that Mentalese symbols are not. This paper shows how Fregeans can withstand this objection. Along the way, a clearer (...) understanding emerges of what senses must be to serve as an ontologically benign alternative to symbols of Mentalese. (shrink)

I review six bad arguments for banning performance-enhancing drugs from sports--and a seventh good one.