Our perception of where touch occurs on our skin shapes our interactions with the world. Most accounts of cutaneous localisation emphasise spatial transformations from a skin-based reference frame into body-centred and external egocentric coordinates. We investigated another possible method of tactile localisation based on an intrinsic perception of ‘skin space’. The arrangement of cutaneous receptive fields (RFs) could allow one to track a stimulus as it moves across the skin, similarly to the way animals navigate using path integration. We applied (...) curved tactile motions to the hands of human volunteers. Participants identified the location midway between the start and end points of each motion path. Their bisection judgements were systematically biased towards the integrated motion path, consistent with the characteristic inward error that occurs in navigation by path integration. We thus showed that integration of continuous sensory inputs across several tactile RFs provides an intrinsic mechanism for spatial perception. (shrink)

It remains controversial whether touch is a truly spatial sense or not. Many philosophers suggest that, if touch is indeed spatial, it is only through its alliances with exploratory movement, and with proprioception. Here we develop the notion that a minimal yet important form of spatial perception may occur in purely passive touch. We do this by showing that the array of tactile receptive fields in the skin, and appropriately relayed to the cortex, may contain the same basic informational building (...) blocks that a creature navigating around its environment uses to build up a perception of space. We illustrate this point with preliminary evidence that perception of spatiotemporal patterns on the human skin shows some of the same features as spatial navigation in animals. We argue (a) that the receptor array defines a ‘tactile field’, (b) that this field exists in a minimal form in ‘skin space’, logically prior to any transformation into bodily or external spatial coordinates, and (c) that this field supports tactile perception without integration of concurrent proprioceptive or motor information. The basic cognitive elements of space perception may begin at lower levels of neural and perceptual organisation than previously thought. (shrink)

1. The benefits resulting from a combination of quantitative (e.g. probabilistic) and qualitative (e.g. logic-based) reasoning are widely acknowledged (e.g. see Domingos et al., 2006; Poole, 2011)....

In this paper we explore the thesis that the role of argumentation in practical reasoning in general and legal reasoning in particular is to justify the use of defeasible rules to derive a conclusion in preference to the use of other defeasible rules to derive a conflicting conclusion. The defeasibility of rules is expressed by means of non-provability claims as additional conditions of the rules.We outline an abstract approach to defeasible reasoning and argumentation which includes many existing formalisms, including default (...) logic, extended logic programming, non-monotonic modal logic and auto-epistemic logic, as special cases. We show, in particular, that the admissibility semantics for all these formalisms has a natural argumentation-theoretic interpretation and proof procedure, which seem to correspond well with informal argumentation. (shrink)

This paper presents a novel argumentation framework to support Issue-Based Information System style debates on design alternatives, by providing an automatic quantitative evaluation of the positions put forward. It also identifies several formal properties of the proposed quantitative argumentation framework and compares it with existing non-numerical abstract argumentation formalisms. Finally, the paper describes the integration of the proposed approach within the design Visual Understanding Environment software tool along with three case studies in engineering design. The case studies show the potential (...) for a competitive advantage of the proposed approach with respect to state-of-the-art engineering design methods. (shrink)

Recent works in Explainable AI mostly address the transparency issue of black-box models or create explanations for any kind of models (i.e., they are model-agnostic), while leaving explanations of interpretable models largely underexplored. In this paper, we fill this gap by focusing on explanations for a specific interpretable model, namely pattern-based logistic regression (PLR) for binary text classification. We do so because, albeit interpretable, PLR is challenging when it comes to explanations. In particular, we found that a standard way to (...) extract explanations from this model does not consider relations among the features, making the explanations hardly plausible to humans. Hence, we propose AXPLR, a novel explanation method using (forms of) computational argumentation to generate explanations (for outputs computed by PLR) which unearth model agreements and disagreements among the features. Specifically, we use computational argumentation as follows: we see features (patterns) in PLR as arguments in a form of quantified bipolar argumentation frameworks (QBAFs) and extract attacks and supports between arguments based on specificity of the arguments; we understand logistic regression as a gradual semantics for these QBAFs, used to determine the arguments’ dialectic strength; and we study standard properties of gradual semantics for QBAFs in the context of our argumentative re-interpretation of PLR, sanctioning its suitability for explanatory purposes. We then show how to extract intuitive explanations (for outputs computed by PLR) from the constructed QBAFs. Finally, we conduct an empirical evaluation and two experiments in the context of human-AI collaboration to demonstrate the advantages of our resulting AXPLR method. (shrink)

In abstract argumentation, each argument is regarded as atomic. There is no internal structure to an argument. Also, there is no specification of what is an argument or an attack. They are assumed to be given. This abstract perspective provides many advantages for studying the nature of argumentation, but it does not cover all our needs for understanding argumentation or for building tools for supporting or undertaking argumentation. If we want a more detailed formalization of arguments than is available with (...) abstract argumentation, we can turn to structured argumentation, which is the topic of this special issue of Argument and Computation. In structured argumentation, we assume a formal language for representing knowledge and specifying how arguments and counterarguments can be constructed from that knowledge. An argument is then said to be structured in the sense that normally, the premises and claim of the argument are made explicit, and the relationship between the premises and claim is formally defined (for instance, using logical entailment). In this introduction, we provide a brief overview of the approaches covered in this special issue on structured argumentation. (shrink)

This paper studies the relationship between Argumentation Logic, a recently defined logic based on the study of argumentation in AI, and classical Propositional Logic. In particular, it shows that AL and PL are logically equivalent in that they have the same entailment relation from any given classically consistent theory. This equivalence follows from a correspondence between the non-acceptability of sentences in AL and Natural Deduction proofs of the complement of these sentences. The proof of this equivalence uses a restricted form (...) of ND proofs, where hypotheses in the application of the Reductio of Absurdum inference rule are required to be “relevant” to the absurdity derived in the rule. The paper also discusses how the argumentative re-interpretation of PL could help control the application of ex-falso quodlibet in the presence of inconsistencies. (shrink)

A paramount, yet unresolved issue in personalised medicine is that of automated reasoning with clinical guidelines in multimorbidity settings. This entails enabling machines to use computerised generic clinical guideline recommendations and patient-specific information to yield patient-tailored recommendations where interactions arising due to multimorbidities are resolved. This problem is further complicated by patient management desiderata, in particular the need to account for patient-centric goals as well as preferences of various parties involved. We propose to solve this problem of automated reasoning with (...) interacting guideline recommendations in the context of a given patient by means of computational argumentation. In particular, we advance a structured argumentation formalism ABA+G (short for Assumption-Based Argumentation with Preferences (ABA+) and Goals) for integrating and reasoning with information about recommendations, interactions, patient’s state, preferences and prioritised goals. ABA+G combines assumption-based reasoning with preferences and goal-driven selection among reasoning outcomes. Specifically, we assume defeasible applicability of guideline recommendations with the general goal of patient well-being, resolve interactions (conflicts and otherwise undesirable situations) among recommendations based on the state and preferences of the patient, and employ patient-centered goals to suggest interaction-resolving, goal-importance maximising and preference-adhering recommendations. We use a well-established Transition-based Medical Recommendation model for representing guideline recommendations and identifying interactions thereof, and map the components in question, together with the given patient’s state, prioritised goals, and preferences over actions, to ABA+G for automated reasoning. In this, we follow principles of patient management and establish corresponding theoretical properties as well as illustrate our approach in realistic personalised clinical reasoning scenaria. (shrink)

Including international contributors from a variety of disciplines - History, English, Information Studies and Archivists – this book does not seek either to applaud or condemn digital technologies, but takes a more conceptual view of how ...

To address the underrepresentation of women in philosophy effectively, we must understand the causes of the early loss of women. In this paper we challenge one of the few explanations that has focused on why women might leave philosophy at early stages. Wesley Buckwalter and Stephen Stich offer some evidence that women have different intuitions than men about philosophical thought experiments. We present some concerns about their evidence and we discuss our own study, in which we attempted to replicate their (...) results for 23 different responses to 14 scenarios . We also conducted a literature search to see if other philosophers or psychologists have tested for gender differences in philosophical intuitions. Based on our findings, we argue that that it is unlikely that gender differences in intuitions play a significant role in driving women from philosophy. (shrink)

In Part 1 of this wide-ranging interview, Tony Lawson discussed his role in, and relationship to, Critical Realism as well as various defences of mathematical modelling in economics. In Part 2 he t...

In Part 1 of this wide-ranging interview Tony Lawson first discusses his role in the formation of IACR and how he relates to the generalized use of the term ‘Critical Realism’. He then provides com...

There is an increasingly widespread belief, both within and outside the discipline, that modern economics is irrelevant to the understanding of the real world. Economics and Reality traces this irrelevance to the failure of economists to match their methods with their subject, showing that formal, mathematical models are unsuitable to the social realities economists purport to address. Tony Lawson examines the various ways in which mainstream economics is rooted in positivist philosophy and examines the problems this causes. It focuses on (...) human agency, social structure and their interaction and explores how the understanding of this social phenomena can be used to transform the nature of economic practice. Economics and Reality concludes by showing how this newly transformed economics might set about shaping economic policy. (shrink)

This article argues that "gratitude to" and "gratitude that" are fundamentally different concepts. The former (prepositional gratitude) is properly a response to benevolent attitudes, and entails special concern on the part of the beneficiary for a benefactor, while the latter (propositional gratitude) is a response to beneficial states of affairs, and entails no special concern for anyone. Propositional gratitude, it is argued, ultimately amounts to a species of appreciation. The tendency to see prepositional gratitude and propositional “gratitude” as two species (...) of the same genus results from several deep-seated social and psychological factors, but must be resisted if we are to engage in constructive philosophizing about both gratitude and appreciation. (shrink)

In this thought-provoking work, Tony D. Sampson presents a contagion theory fit for the age of networks. Unlike memes and microbial contagions, _Virality_ does not restrict itself to biological analogies and medical metaphors. It instead points toward a theory of contagious assemblages, events, and affects. For Sampson, contagion is not necessarily a positive or negative force of encounter; it is how society comes together and relates. Sampson argues that a biological knowledge of contagion has been universally distributed by way of (...) the rhetoric of fear used in the antivirus industry and other popular discourses surrounding network culture. This awareness is also detectable in concerns over _too much connectivity_, such as problems of global financial crisis and terrorism. Sampson’s “virality” is as established as that of the biological meme and microbe but is not understood through representational thinking expressed in metaphors and analogies. Rather, Sampson interprets contagion theory through the social relationalities first established in Gabriel Tarde’s microsociology and subsequently recognized in Gilles Deleuze’s ontological worldview. According to Sampson, the reliance on representational thinking to explain the social behavior of networking—including that engaged in by nonhumans such as computers—allows language to overcategorize and limit analysis by imposing identities, oppositions, and resemblances on contagious phenomena. It is the power of these categories that impinges on social and cultural domains. Assemblage theory, on the other hand, is all about relationality and encounter, helping us to understand the viral as a positively sociological event, building from the molecular outward, long before it becomes biological. (shrink)

In recent years, bioethical discourse around the topic of ‘genetic enhancement’ has become increasingly politicized. We fear there is too much focus on the semantic question of whether we should call particular practices and emerging bio-technologies such as CRISPR ‘eugenics’, rather than the more important question of how we should view them from the perspective of ethics and policy. Here, we address the question of whether ‘eugenics’ can be defended and how proponents and critics of enhancement should engage with each (...) other. (shrink)

The aim of this paper is to investigate Nishida Kitarō’s way of philosophizing in the light of the concept of “transition” in order to deepen our understanding of both Nishida’s philosophy and our thinking about and in transitions, using the concept of “boundary” or “border” (Grenze) as a catalyst. For that purpose, we focus on Nishida’s essay “Place” (「場所」), passing through different parts of the text as if through successive gates on a path of transition between one place and the (...) next, until we reach the final place of “absolute nothingness.” Dwelling on this place, we turn our attention to its internal structure and try to depict it along the outlines of a boundary, following the movements taking place in Nishida’s essay. The second part proposes an interpretation of the place of nothingness as an interminable practice of boundary-crossing that doesn’t come to a halt in a final, all-encompassing place, but dynamically situates itself on countless intersecting planes. After a more or less abstract analysis of the concept of “boundary,” we will apply and concretize this approach by using the example of the skin. To this end, we expose five main features of the skin as boundary: permeability, enclosure, excessiveness, interstitiality and reciprocal self-formation. (shrink)

Gratitude, the proper or fitting response to benevolence, has often been conceptualized as a virtue—a temporally stable disposition to perceive, think, feel, and act in certain characteristic ways in certain situations. Many accounts of gratitude as a virtue, however, have not analyzed this disposition accurately, and as a result, they have not revealed the rich variety of ways in which someone can fail to be a grateful person. In this paper, I articulate an account of the virtue of gratitude, and (...) I use this account to explore various vices that can manifest in its absence. (shrink)

Metaphor has been considered as a cognitive process, independent of the verbal versus visual mode, through which an unknown conceptual domain is understood in terms of another known conceptual domain. Metaphor might instead be viewed as a cognitive process, dependent on the mode, which leads to genuinely new knowledge via ignorance. First, I argue that there are two main senses of ignorance at stake when we understand a metaphor: we ignore some existing properties of the known domain in the sense (...) that we disregard or neglect them; we ignore some “non-existing” properties of the known domain in the sense that they are not a piece of information belonging to the known domain, but emerge in metaphor interpretation. Secondly, I consider a metaphor as a reasoning device, guiding the interpreters along a path of inferences to a conclusion, which attributes to the target some properties of the source. In this path, interpreters might discover the ignored existing properties of the known domain and/or recover the “non-existing” properties, inferring or imagining the missing piece of information. Finally, I argue that, especially in visual metaphors, this process is guided by a “sentiment of rationality”, tracking a disruption of existing familiar conceptualisations of objects and/or actions and a recovery of ignored properties. (shrink)

Gratitude is the proper or called-for response in a beneficiary to benefits or beneficence from a benefactor. It is a topic of interest in normative ethics, moral psychology, and political philosophy, and may have implications for metaethics as well. Despite its commonness in everyday life, there is substantive disagreement among philosophers over the nature of gratitude and its connection to other philosophical concepts. The sections of this article address five areas of debate about what gratitude is, when it is called (...) for, and what implications it has for other debates in moral philosophy and philosophy generally. (shrink)

In this article, I consider the claim that we ought to be grateful to nature and argue that this claim is unjustified. I proceed by arguing against the two most plausible lines of reasoning for the claim that we ought to be grateful to nature: 1) that nature is a fitting or appropriate object of our gratitude, and 2) that we ought to be grateful to nature insofar as gratitude to nature enhances, preserves or indicates in us the virtue of (...) gratitude, a character trait we morally ought to have. My arguments against the first line of reasoning show it to be unsound, and my arguments against the second reveal that we actually have reasons to avoid being grateful to nature. If we have reasons to treat nature well, I show, those may be rooted in the appropriateness of attitudes like praise, appreciation or compassion, but not gratitude. I conclude by highlighting several implications my arguments entail about gratitude to entities other than nature and about environmental virtues other than gratitude. (shrink)

This eagerly anticipated new book from Tony Lawson contends that economics can profit from a more explicit concern with ontology than has been its custom. By admitting that economics is not exactly a picture of health at the moment, Lawson hopes that we can move away from the bafflingly intransigent belief that economics is at its core reliant upon mathematical modelling. This maths-envy is the reason why economics is in a state of such disarray. Far from being a polemic against (...) the mainstream, this excellent new book is concerned that if economics is to be saved from itself then there must be a realistic dialogue between the classical heterodox fields. Of interest to philosophers, sociologists and social scientists as well as economists, this comprehensive, logical book is a vital contribution to an important debate. (shrink)

The social sciences often fail to examine in any systematic way the nature of their subject matter. Demonstrating that this is a central explanation of the widely acknowledged failings of the social sciences, not least of modern economics, this book sets about rectifying matters. Providing an account of the nature of social material in general, as well as of the specific natures of central components of the modern world, such as money and the corporation, Lawson also considers the implications of (...) this theory regarding possibilities for social change. Readers will gain an understanding of how social phenomena, from tables and chairs, to money and firms, and nurses and Presidents are constituted. Fundamental to Lawson's conception is a theory of community-based social positioning, whereby people and things within a community become constituted as components of emergent totalities, with actions governed by the rights and obligations of relevant members of the community. This theory isolates a set of basic principles that will offer the reader an understanding of the natures of all social phenomena. The Nature of Social Realityis for all those, academics and non-academics alike, who wish to gain a grasp on the nature of social phenomena that goes beyond the superficial. isolates a set of basic principles that will offer the reader an understanding of the natures of all social phenomena. The Nature of Social Realityis for all those, academics and non-academics alike, who wish to gain a grasp on the nature of social phenomena that goes beyond the superficial. (shrink)

Slavoj Zizek is no ordinary philosopher. Approaching critical theory and psychoanalysis in a recklessly entertaining fashion, Zizek's critical eye alights upon a bewildering and exhilarating range of subjects, from the political apathy of contemporary life, to a joke about the man who thinks he's a chicken, from the ethicial heroism of Keanu Reeves in speed , to what toilet designs reveal about the national psyche. Tony Myers provides a clear and engaging guide to Zizek's key ideas, explaining the main influences (...) on Zizek's thought, most crucially his engagement with Lacanian psychoanalysis, using examples drawn from popular culture and everyday life. Myers outlines the key issues that Zizek's work has tackled, including: * What is a Subject and why is it so important? * The Imaginary, the Symbolic and the Real * What is so terrible about Postmodernity? * How can we distinguish reality from ideology? * What is the relationship between men and women? * Why is Racism always a fantasy? Slavoj Zizek is essential reading for anyone wanting to understand the thought of the critic whom Terry Eagleton has described as "the most formidably brilliant exponent of psychoanalysis, indeed of cultural theory in general, to have emerged in Europe for some decades.". (shrink)

Despite the remarkable advances in behavioral and brain sciences over the last decades, the mind/body (brain) problem is still an open debate and one of the most intriguing questions for both cognitive neuroscience and philosophy of mind. Traditional approaches have conceived this problem in terms of a contrast between physicalist monism and Cartesian dualism. However, since the late sixties, the landscape of philosophical views on the problem has become more varied and complex. The Multiple Realization Thesis (MRT) claims that mental (...) properties can be (or are) realized, and mental processes can be (or are) implemented by neural correlates of different kinds. Thus, MRT challenges the psychoneural type-identity theory and the corresponding reductionism. Many philosophers have acknowledged the a priori plausibility of MRT. However, the existence of empirical evidence in favor of intraspecific, human multiple realizations of mental processes and properties is still controversial. Here we illustrate some cases that provide empirical evidence in support of MRT. Recently, it has been proposed that foveal agnosic vision, like peripheral vision, can be restored by increasing object parts’ spacing (Strappini et al., 2017a; Crutch and Warrington, 2007). Agnosic fovea and normal periphery are both limited by crowding, that impairs object recognition, and provides the signature of visual integration. Here we define a psychological property of restored object identification and we cross-reference the data of visually-impaired patients with different etiologies. In particular, we compare the data of two stroke patients, two patients with posterior cortical atrophy (PCA), six cases of strabismic amblyopia, and one case with restored sight. We also compare these patients with unimpaired subjects tested in the periphery. We show that integration (i.e. restored recognition) seems to describe quite accurately the visual performance in all these cases. While the patients have different etiologies and different neural correlates, the unimpaired subjects have no neural damage. Thus similarity in the psychological property given the differences in the neural substrate can be interpreted in relation to MRT and provide evidence in its support. Finally, we will frame our contribution within the current debate concerning MRT providing new and compelling empirical evidence. (shrink)