The effects of lexical context on phonological processing are pervasive and there have been indications that such effects may be modulated by attention. However, attentional modulation in speech processing is neither well documented nor well understood. Experiment 1 demonstrated attentional modulation of lexical facilitation of speech sound recognition when task and critical stimuli were identical across attention conditions. We propose modulation of lexical activation as a neurophysiologically plausible computational mechanism that can account for this type of modulation. Contrary to the (...) claims of critics, this mechanism can account for attentional modulation without violating the principle of interactive processing. Simulations of the interactive TRACE model extended to include two different ways of modulating lexical activation showed that each can account for attentional modulation of lexical feedback effects. Experiment 2 tested conflicting predictions from the two implementations and provided evidence that is consistent with bias input as the mechanism of attentional control of lexical activation. (shrink)

In a seminal 1977 article, Rumelhart argued that perception required the simultaneous use of multiple sources of information, allowing perceivers to optimally interpret sensory information at many levels of representation in real time as information arrives. Building on Rumelhart's arguments, we present the Interactive Activation hypothesis—the idea that the mechanism used in perception and comprehension to achieve these feats exploits an interactive activation process implemented through the bidirectional propagation of activation among simple processing units. We then examine the interactive activation (...) model of letter and word perception and the TRACE model of speech perception, as early attempts to explore this hypothesis, and review the experimental evidence relevant to their assumptions and predictions. We consider how well these models address the computational challenge posed by the problem of perception, and we consider how consistent they are with evidence from behavioral experiments. We examine empirical and theoretical controversies surrounding the idea of interactive processing, including a controversy that swirls around the relationship between interactive computation and optimal Bayesian inference. Some of the implementation details of early versions of interactive activation models caused deviation from optimality and from aspects of human performance data. More recent versions of these models, however, overcome these deficiencies. Among these is a model called the multinomial interactive activation model, which explicitly links interactive activation and Bayesian computations. We also review evidence from neurophysiological and neuroimaging studies supporting the view that interactive processing is a characteristic of the perceptual processing machinery in the brain. In sum, we argue that a computational analysis, as well as behavioral and neuroscience evidence, all support the Interactive Activation hypothesis. The evidence suggests that contemporary versions of models based on the idea of interactive activation continue to provide a basis for efforts to achieve a fuller understanding of the process of perception. (shrink)

Computational modeling and eye-tracking were used to investigate how phonological and semantic information interact to influence the time course of spoken word recognition. We extended our recent models to account for new evidence that competition among phonological neighbors influences activation of semantically related concepts during spoken word recognition . The model made a novel prediction: Semantic input modulates the effect of phonological neighbors on target word processing, producing an approximately inverted-U-shaped pattern with a high phonological density advantage at an intermediate (...) level of semantic input—in contrast to the typical disadvantage for high phonological density words in spoken word recognition. This prediction was confirmed with a new analysis of the Apfelbaum et al. data and in a visual world paradigm experiment with preview duration serving as a manipulation of strength of semantic input. These results are consistent with our previous claim that strongly active neighbors produce net inhibitory effects and weakly active neighbors produce net facilitative effects. (shrink)

The complex-systems approach to cognitive science seeks to move beyond the formalism of information exchange and to situate cognition within the broader formalism of energy flow. Changes in cognitive performance exhibit a fractal (i.e., power-law) relationship between size and time scale. These fractal fluctuations reflect the flow of energy at all scales governing cognition. Information transfer, as traditionally understood in the cognitive sciences, may be a subset of this multiscale energy flow. The cognitive system exhibits not just a single power-law (...) relationship between fluctuation size and time scale but actually exhibits many power-law relationships, whether over time or space. This change in fractal scaling, that is, multifractality, provides new insights into changes in energy flow through the cognitive system. We survey recent findings demonstrating the role of multifractality in (a) understanding atypical developmental outcomes, and (b) predicting cognitive change. We propose that multifractality provides insights into energy flows driving the emergence of cognitive structure. (shrink)

Salomon Maimon, philosophischer Autodidakt und wichtiger zeitgenössischer Kritiker Kants, schreibt in einem Kommentar, dass er angesichts des Spinozismus 'vor dem Nichts zurück schaudert'. An anderer Stelle heisst es, jene Philosophie sei 'das akosmische System'. Die schwerwiegende inhärente Problematik dieser Äusserungen wird in dem vorliegenden Band ausführlich diskutiert. Es wird der Frage nachgegangen, was es mit Maimons komplexer Beziehung zur Philosophie Spinozas auf sich hat. Dabei wird gezeigt, dass es dort zu erheblichen Kollisionen verschiedenartiger Vorstellungen vom Intellekt kommt, vom menschlichen wie (...) göttlichen. Letztlich geht es in diesem jahrhunderteübergreifenden Disput um nicht weniger als um eine tiefgreifende Bestimmung des Verhältnisses von Welt, Gott und menschlichem Denken.Indem verschiedene Zweige der Philosophie Maimons in Bezug zueinander gesetzt werden und damit ein facettenreiches Gesamtbild ergeben, wird der Versuch eines neuartigen Zugangs zu seiner Philosophie insgesamt unternommen. (shrink)

This book develops an Aristotelian account of the virtue of practical intelligence or "phronesis"--an excellence of deliberating and making choices--which ...

In the international bestseller, Thinking, Fast and Slow, Daniel Kahneman, the renowned psychologist and winner of the Nobel Prize in Economics, takes us on a groundbreaking tour of the mind and explains the two systems that drive the way we think. System 1 is fast, intuitive, and emotional; System 2 is slower, more deliberative, and more logical. The impact of overconfidence on corporate strategies, the difficulties of predicting what will make us happy in the future, the profound effect of (...) cognitive biases on everything from playing the stock market to planning our next vacation—each of these can be understood only by knowing how the two systems shape our judgments and decisions. -/- Engaging the reader in a lively conversation about how we think, Kahneman reveals where we can and cannot trust our intuitions and how we can tap into the benefits of slow thinking. He offers practical and enlightening insights into how choices are made in both our business and our personal lives—and how we can use different techniques to guard against the mental glitches that often get us into trouble. Winner of the National Academy of Sciences Best Book Award and the Los Angeles Times Book Prize and selected by The New York Times Book Review as one of the ten best books of 2011, Thinking, Fast and Slow is destined to be a classic. (shrink)

Numerous jurisdictions have recently raised the age of retirement or plan to do so. Pressure to extend people's working lives is due to population aging, which makes it harder to fund retirement through existing methods. Raising the retirement age can improve the ‘dependency ratio’ by increasing the fraction of the population that works (and pays taxes) relative to the fraction retired. This article gives sustained attention to connecting the case for retirement with one view about wellbeing, according to which old (...) age is subject to distinctive goods. The importance of being able to access these goods in old age favours an eventual exit from labour market participation that retirement provisions enable. This view is stronger than one that treats retirement as merely a safety net to enable people to stop work only when advanced aging makes it unreasonably burdensome. At the same time, the view likely does not justify status quo retirement ages, meaning that some increase to the retirement age might be defensible. The article also seeks to illuminate ways in which different aspects of population aging – in particular the distinction between dependency ratios and inequalities in longevity – bear differently on the wider debate about justice and retirement. (shrink)

It is common to hear talk of the aim of belief and to find philosophers appealing to that aim for numerous explanatory purposes. What belief 's aim explains depends, of course, on what that aim is. Many hold that it is somehow related to truth, but there are various ways in which one might specify belief 's aim using the notion of truth. In this article, by considering whether they can account for belief 's standard of correctness and the epistemic (...) norms governing belief, I argue against certain prominent specifications of belief 's aim given in terms of truth, and advance a neglected alternative. (shrink)

Physicalism is the thesis that everything is physical, or as contemporary philosophers sometimes put it, that everything supervenes on, or is necessitated by, the physical. The thesis is usually intended as a metaphysical thesis, parallel to the thesis attributed to the ancient Greek philosopher Thales, that everything is water, or the idealism of the 18th Century philosopher Berkeley, that everything is mental. The general idea is that the nature of the actual world (i.e. the universe and everything in it) conforms (...) to a certain condition, the condition of being physical. Of course, physicalists don't deny that the world might contain many items that at first glance don't seem physical — items of a biological, or psychological, or moral, or social nature. But they insist nevertheless that at the end of the day such items are either physical or supervene on the physical. (shrink)

The potential to collect brain data more directly, with higher resolution, and in greater amounts has heightened worries about mental and brain privacy. In order to manage the risks to individuals posed by these privacy challenges, some have suggested codifying new privacy rights, including a right to “mental privacy.” In this paper, we consider these arguments and conclude that while neurotechnologies do raise significant privacy concerns, such concerns are—at least for now—no different from those raised by other well-understood data collection (...) technologies, such as gene sequencing tools and online surveillance. To better understand the privacy stakes of brain data, we suggest the use of a conceptual framework from information ethics, Helen Nissenbaum’s “contextual integrity” theory. To illustrate the importance of context, we examine neurotechnologies and the information flows they produce in three familiar contexts—healthcare and medical research, criminal justice, and consumer marketing. We argue that by emphasizing what is distinct about brain privacy issues, rather than what they share with other data privacy concerns, risks weakening broader efforts to enact more robust privacy law and policy. (shrink)

The paper aims to offer an account of the cognitive capacities involved in judgements about thought experiments, without appealing to the notions of analyticity or intuition. I suggest that we employ a competence in the application of the relevant concepts. In order to address the worry that this suggestion is not explanatory, I look at some theories of concepts discussed in psychology, and I use them to illustrate how such competence might be realized. This requires, crucially, distinguishing between concepts and (...) ways of applying concepts, or conceptions. I end by considering a possible objection and comparing my account with a similar one defended by David Papineau. (shrink)

Many people believe that philosophy makes no progress. Members of the general public often find it amazing that philosophers exist in universities at all, at least in research positions. Academics who are not philosophers often think of philosophy either as a scholarly or interpretative enterprise, or else as a sort of pre-scientific speculation. And many well-known philosophers argue that there is little genuine progress in philosophy. Daniel Stoljar argues that this is all a big mistake. When you think through (...) exactly what philosophical problems are, and what it takes to solve them, the pattern of success and failure in philosophy is similar to that in other fields. In philosophy, as elsewhere, there is a series of overlapping topics that determine what the subject is about. In philosophy, as elsewhere, different people in different historical epochs and different cultures ask different big questions about these topics. And in philosophy, as elsewhere, big questions asked in the past have often been solved: Stoljar provides examples. Philosophical Progress presents a strikingly optimistic picture of philosophy - not a radical optimism that says that there is some key that unlocks all philosophical problems, and not the kind of pessimism that dominates both professional and non-professional thinking about philosophy, but a reasonable optimism that views philosophy as akin to other fields. (shrink)

In this paper, I motivate the view that quantitative parsimony is a theoretical virtue: that is, we should be concerned not only to minimize the number of kinds of entities postulated by our theories (i. e. maximize qualitative parsimony), but we should also minimize the number of entities postulated which fall under those kinds. In order to motivate this view, I consider two cases from the history of science: the postulation of the neutrino and the proposal of Avogadro's hypothesis. I (...) also consider two issues concerning how a principle of quantitative parsimony should be framed. (shrink)

Cryonics is the practice of cryopreserving the bodies or brains of legally dead individuals with the hope that these individuals will be reanimated in the future. A standard argument for cryonics says that cryonics is prudentially justified despite uncertainty about its success because at worst it will leave you no worse off than you otherwise would have been had you not chosen cryonics, and at best it will leave you much better off than you otherwise would have been. Thus, it (...) is a good, no-risk bet; in game-theoretic terms, cryonics is a weakly dominant strategy relative to refraining from utilizing cryonics. I object to this argument for two reasons. First, I argue that there is a practically relevant chance that cryonics will put you into an inescapable and very bad situation. Hence, cryonics is neither a no-risk bet nor a weakly dominant strategy. Second, I argue that the experience of being reanimated and living in the distant future would likely be transformative, and this likelihood undermines your justification for thinking that reanimation would be beneficial to you. I conclude that the standard argument does not show that cryonics is prudentially justified. (shrink)

The pessimistic hypothesis is the hypothesis that life is bad for us, in the sense that we are worse off for having come into existence. Suppose this hypothesis turns out to be correct — existence turns out to be more of a burden than a gift. A natural next thought is that we should stop having children. But I contend that this is a mistake; procreation would often be permissible even if the pessimistic hypothesis turned out to be correct. Roughly, (...) this is because we are often in a position to know that future people will approve of having been created, and their approval will not be inappropriate even if they are worse off for having been created. And our respect for the attitudes of future people can permit us to create them. (shrink)

Sometimes, learning about the origins of a belief can make it irrational to continue to hold that belief—a phenomenon we call ‘genealogical defeat’. According to explanationist accounts, genealogical defeat occurs when one learns that there is no appropriate explanatory connection between one’s belief and the truth. Flatfooted versions of explanationism have been widely and rightly rejected on the grounds that they would disallow beliefs about the future and other inductively-formed beliefs. After motivating the need for some explanationist account, we raise (...) some problems for recent versions of explanationism. Learning from their failures, we then produce and defend a more resilient explanationism. (shrink)

This book seeks to bring together the pragmatic theory of 'meaning as use' with the traditional semantic approach that considers meaning in terms of truth conditions. Daniel Gutzmann's new approach captures the entire meaning of complex expressions and overcomes the empirical gaps and conceptual problems associated with previous analyses.

Simon May has argued that the notion of a principled compromise is incoherent. Reasons to compromise are always in his view strategic: though we think that the position we defend is still the right one, we compromise on this view in order to avoid the undesirable consequences that might flow from not compromising. I argue against May that there are indeed often principled reasons to compromise, and that these reasons are in fact multiple. First, compromises evince respect for persons that (...) we have reason to think of as our epistemic peers, and acknowledgement of our own finitudes as moral reasoners. Second, compromises are often made morally necessary by the shortfalls that unavoidably separate democratic institutions from democratic ideals. Third, compromises express a desirable form of democratic community. And fourth, compromises are often justified from a consequentialist point of view, in that they allow for the realization of values that would not be realized as well by the failure to compromise. (shrink)

Granting that there could be true subjunctive conditionals of libertarian freedom (SCLs), I argue (roughly) that there could be such conditionals only in connection with individual "possible creatures" (in contrast to types). This implies that Molinism depends on the view that, prior to creation, God grasps possible creatures in their individuality. In making my case, I explore the notions of counterfactual implication (that relationship between antecedent and consequent of an SCL which consists in its truth) and counterfactual relevance (that feature (...) of an antecedent in virtue of which it counterfactually implies something or other). (shrink)

Examines the lived experience of social encounters drawing on phenomenological insights.

Supererogatory acts—good deeds “beyond the call of duty”—are a part of moral common sense, but conceptually puzzling. I propose a unified solution to three of the most infamous puzzles: the classic Paradox of Supererogation (if it’s so good, why isn’t it just obligatory?), Horton’s All or Nothing Problem, and Kamm’s Intransitivity Paradox. I conclude that supererogation makes sense if, and only if, the grounds of rightness are multi-dimensional and comparative.

This paper defends the epistemic account of the normativity of requests. The epistemic account says that a request does not create any reasons and thus does not have any special normative power. Rather, a request gives reasons by revealing information which is normatively relevant. I argue that compared to competing accounts of request normativity, especially those of David Enoch and James H.P. Lewis, the epistemic account gives better answers to cases of insincere requests, is simpler, and does a better job (...) incorporating the importance of relationships. I also defend the epistemic account from three objections: that requests are important because they constitute consent, that requests and wishes must be normatively different, and that some requests do not provide any new information. (shrink)

Some brief remarks are made on the relation between the ordering and dimensionality properties of time and the laws of physics. Time is defined as the ordinal of the set of photographs describing the configuration of the Universe associated with each collision of a test particle. This set of pictures is ordered by a parameter which appears in simple physical laws, and it is these laws which determine the ordering. Time is one-dimensional because these snapshots can be ordered with a (...) single parameter. The signature of space-time appears to be related to the measurement process. If there were no time dimension, there would probably be no physical laws, because there would seem to be nothing to predict: while if there were more than one timelike dimension, then the extra dimensions may be unobservable and so physically nonexistent. (shrink)

In Lukács: Praxis and the Absolute, Daniel Andrés López reassembles Lukács’s philosophy of praxis on a Hegelian basis, as a conceptual-historical totality, both defending him and proposing an unprecedented, immanent critique that raises problems for Marxian philosophy as a whole.

This paper is about the nature of God’s pre-creation knowledge of possible creatures. I distinguish three theories: non-qualitative singularism, qualitative singularism, and qualitative generalism, which differ in terms of whether the relevant knowledge is qualitative or non-qualitative, and whether God has singular or merely general knowledge of creatures. My main aim is to argue that qualitative singularism does not depend on a version of the Principle of Identity of Indiscernibles to the effect that, necessarily, qualitatively indiscernible individuals are identical. It (...) follows that qualitative singularism does not depend on the view that possible creatures categorically have qualitative individual essences. (shrink)

1. Happiness, then and now -- Happiness, eudaimonia, and practical reasoning -- Happiness as eudaimonia -- Happiness and virtuous activity -- New directions from old debates -- 2. Happiness then: the sufficiency debate -- Aristotle's case against the sufficiency thesis -- 3. Happiness now: rethinking the self -- Socrates' case for the sufficiency thesis -- Epictetus and the stoic self -- The Stoics' case for the sufficiency thesis -- The embodied conception of the self -- The embodied conception and psychological (...) well-being -- The Stoics' case against the embodied conception. (shrink)

Quentin Smith has argued that quantum-cosmological theory is incompatible with theism. The two claims that Smith argues render theism inconsistent with Hawking’s theory are that of the initial creation of the universe by God and His continued conservation of it. His primary argument is that divine decision and Hawking’s wave function entail contradictory probabilities that the universe begin to exist and continue to evolve in a certain way. I attempt to refute the argument by providing a schema that accommodates probabilities (...) conditioned on divine decision as well as those conditioned on the wave function with respect to these two issues. (shrink)