Observers inspected normal, high quality color displays of everyday visual scenes while their eye movements were recorded. A large display change occurred each time an eye blink occurred. Display changes could either involve "Central Interest" or "Marginal Interest" locations, as determined from descriptions obtained from independent judges in a prior pilot experiment. Visual salience, as determined by luminance, color, and position of the Central and Marginal interest changes were equalized. -/- The results obtained were very similar to those obtained in (...) prior experiments showing failure to detect changes occurring simultaneously with saccades, flicker, or “mudsplashes” in the visual scene: Many changes were very hard to detect, and Marginal Interest changes were harder to detect than Central Interest changes. -/- Analysis of eye movements showed, as expected, that the probability of detecting a change depended on the eye’s distance from the change location. However a surprising finding was that both for Central and Marginal Interest changes, evenwhen observers were directly fixating the change locations (within 1 degree),more than 40% of the time they still failed to see the changes. It seems that looking at something does not guarantee you “ see” it. (shrink)

The sensorimotor theory of perceptual consciousness offers a form of enactivism in that it stresses patterns of interaction instead of any alleged internal representations of the environment. But how does it relate to forms of enactivism stressing the continuity between life and mind? We shall distinguish sensorimotor enactivism, which stresses perceptual capacities themselves, from autopoietic enactivism, which claims an essential connection between experience and autopoietic processes or associated background capacities. We show how autopoiesis, autonomous agency, and affective dimensions of experience (...) may fit into sensorimotor enactivism, and we identify differences between this interpretation and autopoietic enactivism. By taking artificial consciousness as a case in point, we further sharpen the distinction between sensorimotor enactivism and autopoietic enactivism. We argue that sensorimotor enactivism forms a strong default position for an enactive account of perceptual consciousness. (shrink)

When looking at a scene, observers feel that they see its entire structure in great detail and can immediately notice any changes in it. However, when brief blank fields are placed between alternating displays of an original and a modified scene, a striking failure of perception is induced: identification of changes becomes extremely difficult, even when changes are large and made repeatedly. Identification is much faster when a verbal cue is provided, showing that poor visibility is not the cause of (...) this difficulty. Identification is also faster for objects mentioned in brief verbal descriptions of the scene. These results support the idea that observers never form a complete, detailed representation of their surroundings. In addition, results also indicate that attention is required to perceive change, and that in the absence of localized motion signals it is guided on the basis of high-level interest. (shrink)

When brief blank fields are placed between alternating displays of an original and a modified scene, a striking failure of perception is induced: the changes become extremely difficult to notice, even when they are large, presented repeatedly, and the observer expects them to occur (Rensink, O'Regan, & Clark, 1997). To determine the mechanisms behind this induced "change blindness", four experiments examine its dependence on initial preview and on the nature of the interruptions used. Results support the proposal that representations at (...) the early stages of visual processing are highly volatile, and that focused attention is needed to stabilize them sufficiently to support the perception of change. (shrink)

Traditionally, the “Imagery Debate” has opposed two main camps: depictivism and descriptivism. This debate has essentially focused on the nature of the internal representations thought to be involved in imagery, without addressing at all the question of action. More recently, a third, “embodied” view is moving the debate into a new phase. The embodied approach focuses on the interdependence of perception, cognition and action, and in its more radical line this approach promotes the idea that perception is not a process (...) involving internal world-models. The anti-representationalist version of the embodied paradigm covers, among others that we shall not discuss here, two quite different positions, namely the enactive approach and sensorimotor theory. Up to now these two anti-representationalist accounts have generally been confounded. In this paper we will argue that despite some important commonalities, enactive and sensorimotor accounts come with distinctive theoretical traits with regard to their approach to imagery. These become manifest when critically examining the role they assign to sensorimotor engagements with the world. We shall argue that enactive and sensorimotor approaches are different in their understanding of the role of embodied action, and these different notions of embodiment lead to different explanatory accounts of perception and imagery. We propose that, due to existing ambiguities in enactivism, the sensorimotor theory is a better framework for a skill-based approach to imagery. (shrink)

We have been observing how infants between 3 and 21 months react when a vibrotactile stimulation (a buzzer) is applied to different parts of their bodies. Responses included in particular movement of the stimulated body part and successful reaching for and removal of the buzzer. Overall, there is a pronounced developmental progression from general to specific movement patterns, especially in the first year. In this article we review the series of studies we conducted and then focus on possible mechanisms that (...) might explain what we observed. One possible mechanism might rely on the brain extracting “sensorimotor contingencies” linking motor actions and resulting sensory consequences. This account posits that infants are driven by intrinsic motivation that guides exploratory motor activity, at first generating random motor babbling with self-touch occurring spontaneously. Later goal-oriented motor behavior occurs, with self-touch as a possible effective tool to induce informative contingencies. We connect this sensorimotor view with a second possible account that appeals to the neuroscientific concepts of cortical maps and coordinate transformations. In this second account, the improvement of reaching precision is mediated by refinement of neuronal maps in primary sensory and motor cortices—the homunculi—as well as in frontal and parietal corti- cal regions dedicated to sensorimotor processing. We complement this theoretical account with modeling on a humanoid robot with artificial skin where we implemented reaching for tactile stimuli as well as learning the “somatosensory homunculi”. We suggest that this account can be extended to reflect the driving role of sensorimotor contingencies in human development. In our conclusion we consider possible extensions of our current experiments which take account of predictions derived from both these kinds of models. (shrink)

This paper starts by providing a succinct overview of the sensorimotor approach to phenomenal consciousness, describing its two parts: the part that concerns the quality of sensations, and the part that concerns whether or not such qualities are (consciously) experienced. The paper goes on to discuss the explanatory status of the approach, claiming that the approach does not simply “explain away” qualia, but that on the contrary, it provides a way of thinking about qualia that explains why they are the (...) way they are, stimulates scientific paradigms and produces testable predictions. A final part of the paper examines the relation of the theory to radical enactivism, claiming that some kind of “higher order” cognitive mechanism similar to that used in Higher Order Thought theories of consciousness is needed to account for what is usually meant by being conscious of something. (shrink)

In Disturbed Consciousness, philosophers and other scholars examine various psychopathologies in light of specific philosophical theories of consciousness. The contributing authors—some of them discussing or defending their own theoretical work—consider not only how a theory of consciousness can account for a specific psychopathological condition but also how the characteristics of a psychopathology might challenge such a theory. Thus one essay defends the higher-order thought (HOT) theory of consciousness against the charge that it cannot account for somatoparaphrenia (a delusion in which (...) one denies ownership of a limb). Another essay argues that various attempts to explain away such anomalies within subjective theories of consciousness fail. -/- Other essays consider such topics as the application of a model of unified consciousness to cases of brain bisection and dissociative identity disorder; prefrontal and parietal underconnectivity in autism and other psychopathologies; self-deception and the self-model theory of subjectivity; schizophrenia and the vehicle theory of consciousness; and a shift in emphasis away from an internal (or brainbound) approach to psychopathology to an interactive one. Each essay offers a distinctive perspective from the intersection of philosophy, consciousness research, and psychiatry. -/- Contributors Alexandre Billon, Andrew Brook, Paula Droege, Rocco J. Gennaro, Philip Gerrans, William Hirstein, Jakob Hohwy, Uriah Kriegel, Timothy Lane, Thomas Metzinger, Erik Myin, Inez Myin-Germeys, Myrto Mylopoulos, Gerard O’Brien, Jon Opie, J. Kevin O’Regan, Iuliia Pliushch, Robert Van Gulick . (shrink)

Music is often described in anthropomorphic terms. This paper suggests that if we think about music in certain ways we could think of it as conscious. Motional characteristics give music the impression of being alive, but musical motion is conventionally taken as metaphorical. The first part of this paper argues that metaphor may not be the exclusive means of understanding musical motion – there could also be literal ways. Discussing kinds of consciousness, particularly “access consciousness” (Block 1995), the second part (...) proposes ways in which music could (hypothetically) be conscious. The conclusion states that a greater understanding of the interactions of “phenomenal consciousness” and “access consciousness” is important in conceptualizing non-human consciousnesses, such as music might be conceived to be. (shrink)

Advances a novel theory of how paradoxes evident in Wilhelm Heinrich Wackenroder's essay on instrumental music evoke specific religious dichotomies and that these in turn propose an aesthetic interpretation of autonomous instrumental music concordant with the importance attached to religion in early German Romantic thought.

Cortical plasticity is often invoked to explain changes in the quality or location of experience observed in rewired animals, in sensory substitution, in extension of the body through tool use, and in the rubber hand illusion. However this appeal to cortical plasticity may be misleading, because it suggest that the cortical areas that are plastic are themselves the loci of generation of experience. This would be an error, I claim, since cortical areas do not generate experience. Cortical areas participate in (...) enabling the interaction of an agent with its environment, and the quality of this interaction constitutes the quality of experience. Thus it is not plasticity in itself, but the change in modes of interaction which plasticity allows, which gives rise to the change of experience observed in these studies. (shrink)

Invited papers from PT-AI 2011. - Vincent C. Müller: Introduction: Theory and Philosophy of Artificial Intelligence - Nick Bostrom: The Superintelligent Will: Motivation and Instrumental Rationality in Advanced Artificial Agents - Hubert L. Dreyfus: A History of First Step Fallacies - Antoni Gomila, David Travieso and Lorena Lobo: Wherein is Human Cognition Systematic - J. Kevin O'Regan: How to Build a Robot that Is Conscious and Feels - Oron Shagrir: Computation, Implementation, Cognition.

Our recent opinion article [1] examined what change blindness can and cannot tell us about visual representations. Among other things, we argued that change blindness can tell us a lot about how visual representations can be used, but little about their extent. We and others found the ‘sparse representations’ view appealing (and still do), and initially made the overly strong claim that change blindness supports the conclusion of sparse representations [2,3]. We wrote our article because change blindness continues to be (...) taken as evidence for sparse – or even absent – representations, and we used O’Regan and Noë’s influential paper [4] as an example. However, as has been noted for some time [5–8], this conclusion is logically flawed: lack of ability need not be caused by lack of representation. (shrink)

With Jan Degenaar and Kevin O’Regan’s (D&O) critique of (what they call) ‘autopoietic enactivism’ as point of departure, this article seeks to revisit, refine, and develop phenomenology’s significance for the enactive view. Arguing that D&O’s ‘sensorimotor theory’ fails to do justice to perceptual meaning, the article unfolds by (1) connecting this meaning to the notion of enaction as a meaningful co-definition of perceiver and perceived, (2) recounting phenomenological reasons for conceiving of the perceiving subject as a living body, and (...) (3) showing how the phenomenological perspective does a better job at fulfilling D&O’s requirement for grounding notions of mentality in ‘outer’ criteria than they do. The picture that thus emerges is one of perceptual meaning as an integration of lived, living, and behavioral aspects – a structure of behavior that cannot be captured by appeal to sensorimotor capacities alone but that is adequately illuminated by the enactive notion of adaptive autonomy. (shrink)

Rensink, O’Regan, and Clark (1997) drew attention to the phenomenon of change blindness, in which even large changes can be difficult to notice if made during the appearance of motion transients elsewhere in the image. This article provides a sketch of the events that inspired that article as well as its subsequent impact on psychological science and on society at large.

This paper aims to contribute to the ongoing conceptual debate on responsible innovation, and provides innovation practices and processes that can help to implement responsible innovation in the business context. Based on a systematic literature review of 72 empirical scholarly articles, it was possible to identify, analyse and synthesise empirical findings reported in studies on social, sustainable and responsible innovation practices in the business context. The synthesis of the included articles resulted in a refined framework for responsible innovation in the (...) business context. This framework includes an overview of innovation practices and processes that can enhance the dimensions of responsible innovation: anticipation, reflexivity, inclusion, deliberation, responsiveness and knowledge management. Additionally, knowledge gaps are identified and a research agenda for responsible innovation is proposed. This review can therefore serve as a next step in the theoretical and practical development of responsible innovation in general, and in the business context in particular. (shrink)

You can perceive things, in many respects, as they really are. For example, you can correctly see a coin as circular from most angles. Nonetheless, your perception of the world is perspectival. The coin looks different when slanted than when head-on, and there is some respect in which the slanted coin looks similar to a head-on ellipse. Many hold that perception is perspectival because you perceive certain properties that correspond to the “looks” of things. I argue that this view is (...) misguided. I consider the two standard versions of this view. What I call the PLURALIST APPROACH fails to give a unified account of the perspectival character of perception, while what I call the PERSPECTIVAL PROPERTIES APPROACH violates central commitments of contemporary psychology. I propose instead that perception is perspectival because of the way perceptual states are structured from their parts. (shrink)

An ongoing philosophical discussion concerns how various types of mental states fall within broad representational genera—for example, whether perceptual states are “iconic” or “sentential,” “analog” or “digital,” and so on. Here, I examine the grounds for making much more specific claims about how mental states are structured from constituent parts. For example, the state I am in when I perceive the shape of a mountain ridge may have as constituent parts my representations of the shapes of each peak and saddle (...) of the ridge. More specific structural claims of this sort are a guide to how mental states fall within broader representational kinds. Moreover, these claims have significant implications of their own about semantic, functional, and epistemic features of our mental lives. But what are the conditions on a mental state's having one type of constituent structure rather than another? Drawing on explanatory strategies in vision science, I argue that, other things being equal, the constituent structure of a mental state determines what I call its distributional properties—namely, how mental states of that type can, cannot, or must co‐occur with other mental states in a given system. Distributional properties depend critically on and are informative about the underlying structures of mental states, they abstract in important ways from aspects of how mental states are processed, and they can yield significant insights into the variegation of psychological capacities. (shrink)

Perception is a central means by which we come to represent and be aware of particulars in the world. I argue that an adequate account of perception must distinguish between what one perceives and what one's perceptual experience is of or about. Through capacities for visual completion, one can be visually aware of particular parts of a scene that one nevertheless does not see. Seeing corresponds to a basic, but not exhaustive, way in which one can be visually aware of (...) an item. I discuss how the relation between seeing and visual awareness should be explicated within a representational account of the mind. Visual awareness of an item involves a primitive kind of reference: one is visually aware of an item when one's visual perceptual state succeeds in referring to that particular item and functions to represent it accurately. Seeing, by contrast, requires more than successful visual reference. Seeing depends additionally on meta-semantic facts about how visual reference happens to be fixed. The notions of seeing and of visual reference are both indispensable to an account of perception, but they are to be characterized at different levels of representational explanation. (shrink)

The Twin Earth thought experiment invites us to consider a liquid that has all of the superficial properties associated with water (clear, potable, etc.) but has entirely different deeper causal properties (composed of “XYZ” rather than of H2O). Although this thought experiment was originally introduced to illuminate questions in the theory of reference, it has also played a crucial role in empirically informed debates within the philosophy of psychology about people’s ordinary natural kind concepts. Those debates have sought to accommodate (...) an apparent fact about ordinary people’s judgments: Intuitively, the Twin Earth liquid is not water. We present results from four experiments showing that people do not, in fact, have this intuition. Instead, people tend to have the intuition that there is a sense in which the liquid is not water but also a sense in which it is water. We explore the implications of this finding for debates about theories of natural kind concepts, arguing that it supports views positing two distinct criteria for membership in natural kind categories – one based on deeper causal properties, the other based on superficial, observable properties. (shrink)

A compositional theory of perceptual representations would explain how the accuracy conditions of a given type of perceptual state depend on the contents of constituent perceptual representations and the way those constituents are structurally related. Such a theory would offer a basic framework for understanding the nature, grounds, and epistemic significance of perception. But an adequate semantics of perceptual representations must accommodate the holistic nature of perception. In particular, perception is replete with context effects, in which the way one perceptually (...) represents one aspect of a scene (including the position, size, orientation, shape, color, motion, or even unity of an object) normally depends on how one represents many other aspects of the scene. The ability of existing accounts of the semantics of perception to analyze context effects is at best unclear. Context effects have even been thought to call into question the very feasibility of a systematic semantics of perception. After outlining a compositional semantics for a rudimentary set of percepts, I draw on empirical models from perceptual psychology to show how such a theory must be modified to analyze context effects. Context effects arise from substantive constraints on how perceptual representations can combine and from the different semantic roles that perceptual representations can have. I suggest that context effects are closely tied to the objectivity of perception. They arise from a perceptual grammar that functions to facilitate the composition of reliably accurate representations in an uncertain but structured world. (shrink)

People more frequently select norm-violating factors, relative to norm- conforming ones, as the cause of some outcome. Until recently, this abnormal-selection effect has been studied using retrospective vignette-based paradigms. We use a novel set of video stimuli to investigate this effect for prospective causal judgments—i.e., judgments about the cause of some future outcome. Four experiments show that people more frequently select norm- violating factors, relative to norm-conforming ones, as the cause of some future outcome. We show that the abnormal-selection effects (...) are not primarily explained by the perception of agency (Experiment 4). We discuss these results in relation to recent efforts to model causal judgment. (shrink)

Our ability to tell stories about ourselves has captivated many theorists, and some have taken these developments for an opportunity to answer long-standing questions about the nature of personhood. In this essay I employ two skeptical arguments to show that this move was a mistake. The first argument rests on the observation that storytelling is revisionary. The second implies that our stories about ourselves are biased in regard to our existing self-image. These arguments undercut narrative theories of identity, but they (...) leave room for a theory of narrative self-knowledge. The theory accommodates the first skeptical argument because there are event descriptions with retrospective assertibility conditions, and it accommodates the second argument by denying us epistemic privilege in regard to our own past. The result is that we do know our past through storytelling, but that it is a contingent feature of some of our stories that they are about ourselves. (shrink)

This article considers the implications of inferentialist philosophy of language for debates in the historiography of philosophy. My intention is to mediate and refine the polemics between contextualist historians and ‘analytic’ or presentist historians. I claim that much of Robert Brandom’s nuanced defence of presentism can be accepted and even adopted by contextualists, so that inferentialism turns out to provide an important justification for orthodox history of philosophy. In the concluding sections I argue that the application of Brandom’s theory has (...) important limits, and that some polemics by contextualists against presentists are therefore justified. (shrink)

This essay offers a rationale for the employment of narrative pedagogies in introductory philosophy courses, as well as examples of narrative techniques, assignments, and course design that have been successfully employed in the investigation of philosophical topics. My hope is to undercut the sense that “telling stories in class” is just a playful diversion from the real material, and to encourage instructors to treat storytelling as a genuine philosophical activity that should be rigorously developed. I argue that introductory courses focused (...) on student narratives fulfill the ideals of learning-centered teaching. Since narrative learning also promotes self-knowledge and empathic understanding, there is good reason to consider replacing or supplementing canonical texts or arguments with narrative assignments. The concluding sections provide details as to how such assignments can be constructed,integrated into course units, and assessed. (shrink)

The global pandemic caused by the spread of a novel coronavirus in early 2020 did more than transform the first one-and-a-quarter academic year that fell within its duration. It also transformed higher learning in its research and pedagogy. Like many misfortunes, COVID-19 has brought opportunity for growth and change. No doubt, there are many success stories of philosophers rising to the challenges of our time. In this contribution, I relate my own pandemic story, not as one of success, but rather (...) as a humble attempt to grapple with the question of the post-pandemic philosophy curriculum. What is the place of philosophy in the twenty-first-century university? What might "philosophy" mean in a post-pandemic context... (shrink)

This essay presents racial literacy and racial dexterity as educational desiderata, especially for white students. Racial literacy is defined as the ability to recognize and interpret racial nuances in real social engagements. Racial dexterity is defined as the ability to engage successfully with diverse racial contexts. After defining racial literacy and racial dexterity, Kevin Harrelson analyzes these skills by contrasting them with racial naivety and racial anxiety. He argues that transitioning from naivety to literacy, and from anxiety to dexterity, (...) requires treating cross-racial interactions as key learning events. (shrink)

Tommy J. Curry’s Another white Man’s Burden presents a rigorous intellectual history of Josiah Royce’s essays on race. Curry explains the several arguments that Royce made on this topic between 1900 and 1908, and he situates these within Royce’s social philosophy and some contemporaneous literatures on racism. The result is a comprehensive theory of cultural assimilation informed by an idealist metaphysics. Royce, namely, disdained segregation and rejected biological accounts of racial difference. But Royce scholars have wrongly taken these observations, Curry (...) argues, as evidence that their hero held progressive views on race. Royce rather began from the premise of Anglo-American cultural superiority, and... (shrink)

in early 2019, the josiah royce society arranged two Author Meets Critics sessions on Tommy J. Curry’s Another white Man’s Burden: Josiah Royce’s Quest for a Philosophy of white Racial Empire. The first was held in New York City, at the American Philosophical Association Eastern Division Meeting. The second was at the annual meeting of the Society for the Advancement of American Philosophy, in Columbus, Ohio. The sessions were vibrant and well-attended. With the exception of a few tendentious questions at (...) the close of the second meeting, however, our sessions lacked the element of controversy that is customary in discussions of racism in the history of philosophy. The panelists and the audience alike rather... (shrink)

In this paper I sketch some arguments that underlie Hegel's chapter on judgment, and I attempt to place them within a broad tradition in the history of logic. Focusing on his analysis of simple predicative assertions or ‘positive judgments’, I first argue that Hegel supplies an instructive alternative to the classical technique of existential quantification. The main advantage of his theory lies in his treatment of the ontological implications of judgments, implications that are inadequately captured by quantification. The second concern (...) of this paper is the manner in which Hegel makes logic not only dependent on ontology generally, but also variant in regard to domains of objects. In other words, he offers a domain-specific logical theory, according to which the form of judgment or inference is specific to the subject of judgment. My third concern lies with the metaphilosophical consequences of this theory, and this includes some more familiar Hegelian themes. It is well known that Hegel frequently questioned the adequacy of the sentential form for expressing higher order truths. My reading of his theory of predication explains and contextualizes this tendency by demystifying notions like the so-called speculative proposition. (shrink)

This essay deals with the impact of Hegel's philosophy of religion by examining his positions on religious identity and on the relationship between theology and history. I argue that his criterion for religious identity was socio-historical, and that his philosophical theology was historical rather than normative. These positions help explain some historical peculiarities regarding the effect of his philosophy of religion. Of particular concern is that although Hegel’s own aims were apologetic, his major influence on religious thought was in the (...) development of various historical and critical approaches to religion. (shrink)

This essay examines how, in the early twentieth century, ontological arguments were employed in the defense of metaphysical idealism. The idealists of the period tended to grant that ontological arguments defy our usual expectations in logic, and so they were less concerned with the formal properties of Anselmian arguments. They insisted, however, that ontological arguments are indispensable, and they argued that we can trust argumentation as such only if we presume that there is a valid ontological argument. In the first (...) section I outline the history of this metalogical interpretation of the ontological argument. In the subsequent sections I explain how Royce and Collingwood each developed the argument, and how this impacted their respective conceptions of both logic and metaphysics. (shrink)

Abstract: This essay traces the relationship between Hegel and some common portrayals of modern philosophy in the nineteenth century. I explain much of the rationale behind the neo-Kantian narrative of modern philosophy, and argue that the common division of modern philosophers into rationalists and empiricists executed a principally anti-Hegelian agenda. I then trace some failed attempts by anglophone philosophers to reconcile Hegel with the neo-Kantian history, in the interest of explaining Hegel’s subsequent unpopularity in England and America. Finally, I argue (...) that recent attempts to read Hegel in Kantian terms often rest on a misguided appropriation of an anti-Hegelian historical narrative. (shrink)

This essay examines the argumentative context in which early Neo-Kantian philosophers defined and defended "epistemology." The paper defends Richard Rorty's claim that the priority of epistemology influenced how the history of modern philosophy was written but corrects his story by showing that epistemology was defended mainly via antifoundational arguments. The essay begins with a few programmatic arguments by Kuno Fischer and Eduard Zeller but focuses mainly on Otto Liebmann's Kant und die Epigonen. I argue that Liebmann completes the agenda of (...) Fischer and Zeller by giving a detailed account of how a metaphysical system is impossible for anyone who begins with modest, Kantian epistemological principles. (shrink)

Hegel endorsed proofs of the existence of God, and also believed God to be a person. Some of his interpreters ignore these apparently retrograde tendencies, shunning them in favor of the philosopher's more forward-looking contributions. Others embrace Hegel's religious thought, but attempt to recast his views as less reactionary than they appear to be. Robert Williams's latest monograph belongs to a third category: he argues that Hegel's positions in philosophical theology are central to his philosophy writ large. The book is (...) diligently researched, and marshals an impressive amount of textual evidence concerning Hegel's view of the proofs, his theory of personhood, and his views on religious community.Many of... (shrink)

In the latter half of the twentieth century, philosophers of science have argued (implicitly and explicitly) that epistemically rational individuals might compose epistemically irrational groups and that, conversely, epistemically rational groups might be composed of epistemically irrational individuals. We call the conjunction of these two claims the Independence Thesis, as they together imply that methodological prescriptions for scientific communities and those for individual scientists might be logically independent of one another. We develop a formal model of scientific inquiry, define four (...) criteria for individual and group epistemic rationality, and then prove that the four definitions diverge, in the sense that individuals will be judged rational when groups are not and vice versa. We conclude by explaining implications of the inconsistency thesis for (i) descriptive history and sociology of science and (ii) normative prescriptions for scientific communities. (shrink)

O dilema de Jørgensen tem atormentado os imperativistas até aos nossos dias. Resumidamente, se há uma Lógica das Normas, então esta tem por elementos proposições (as proposições normativas) e, simultaneamente, tem por elementos imperativos, que não possuem conteúdo proposicional. Neste ensaio, defender-se-á que o imperativismo é totalmente compatível com a concebilidade de uma Lógica Deôntica de proposições, pelo que não é necessário afastá-lo para manter a referida concebilidade (ainda que haja outras razões para rejeitar o imperativismo). Todas as posições que (...) aceitam a incompatibilidade suscitada pelo dilema de Jørgensen incorrem num erro, o de confundir imperativismo e prescritivismo. -/- Jørgensen's dilemma has plagued imperativists to this day. Briefly, if there is a Logic of Norms, then propositions participate in it (normative propositions) and, simultaneously, imperatives participate in it, which do not have propositional content. In this essay, I will argue that imperativism is fully compatible with the conceivability of a Deontic Logic of propositions, so it is not necessary to push it aside to maintain that conceivability (although there are other reasons for rejecting imperativism). All positions that accept the incompatibility raised by Jørgensen's dilemma incur an error, that of confusing imperativism and prescriptivism. (shrink)

Tradução para o português do capítulo 5 do livro "Berkeley" (Oxford University Press, 1982), Cap. 5, p. 47-57. Republicado em The British Empiricists: Locke, Berkeley, Hume (Oxford University Press, 1992).

This paper is a study about Philadelphia’s comprehensive user engagement sites (CUESs) as the authors address and examine issues related to the upcoming implementation of a CUES while seeking solutions for its disputed questions and plans. Beginning with the federal drug schedules, the authors visit some of the medical and public health issues vis-à-vis safe injection facilities (SIFs). Insite, a successful Canadian SIF, has been thoroughly researched as it represents a paradigm for which a Philadelphia CUES can expand upon. Also, (...) the existing criticisms against SIFs are revisited while critically unpackaged and responded to in favor of the establishment. In the main section, the authors propose the layout and services of the upcoming CUES, much of which would be in congruent to Vancouver’s Insite. On the other hand, the CUES would be distinct from Insite, as the authors emphasize, in that it will offer an information center run by individuals in recovery and place additional emphasis on early education for young healthcare professionals by providing them a platform to work at the site. The paper will also briefly investigate the implementation of a CUES site under an ethical scope of the Harm Reduction Theory. Lastly, the authors recommend some strategic plans that the Philadelphia City government may consider employing at this crucial stage. (shrink)

In response to Fred Adams and Charlotte Shreve’s (2016) paper entitled “What Can Synesthesia Teach Us about Higher Order Theories of Consciousness?”, previously published in Symposion, I argue that H.O.T. theory does have the resources to account for synesthesia and the specific worries that they advance in their paper, such as the relationship between concepts and experience and the ability to handle instances of ‘pop-out’ experiences.