. Epochs present in the voiced speech are defined as time instants of significant excitation of the vocal tract system during the production of speech. Nonstationary nature of excitation source and vocal tract system makes accurate identification of epochs a difficult task. Most of the existing methods for epoch detection require prior knowledge of voiced regions and a rough estimation of pitch frequency. In this paper, we propose a novel method that relies on time-order representation based on short-time Fourier–Bessel series (...) expansion which can be employed on entire speech signal to detect epochs without any prior information. The proposed method automatically detects voiced regions in the speech signal by computing the marginal energy density with respect to time in the low frequency range from the energy distribution in the time-frequency plane. An estimate of pitch frequency for each detected voiced region is then obtained by computing the marginal energy density with respect to frequency in the LFR from the energy distribution in the time-frequency plane. Epochs are located for each detected voiced region as peaks in the derivative of the low pass filtered signal corresponding to falling edges of peak negative cycles in the LPF signal synthesized from TOR coefficients corresponding to LFR. Experimental results obtained by the proposed method on speech signals taken from the CMU-Arctic database are found to be promising. The proposed method detects epochs with high accuracy and reliability. (shrink)

Center of pressure measurements are often used to identify balance problems. A new method for COP signal analysis using mean frequency is proposed in this paper. The computation of mean frequency is based on the Fourier–Bessel expansion that is suitable for use in non-stationary COP signals. In addition, FB expansion provides better frequency resolution and low frequency detectability. Seventeen subjects were tested under eyes open and eyes closed conditions, with different vibration frequencies applied for the eyes closed condition in order (...) to further perturb sensory information. More accurate estimates of mean frequency were obtained for 200-point segments, with significant increase in mean frequency observed over time as subjects recovered from the initial perturbation of stepping on to the force plate. Subjects were significantly more stable in the mediolateral direction compared to anteroposterior one. Mean frequency as calculated by FB expansion was able to distinguish between eyes open and eyes closed conditions, but no effect of vibration could be detected. (shrink)

This volume features the complete text of all regular papers, posters, and summaries of symposia presented at the 16th annual meeting of the Cognitive Science ...

A skeptic claims that I do not have knowledge of the external world. It has been thought that the skeptic reaches this conclusion because she employs unusually stringent standards for knowledge. But the skeptic does not employ unusually high standards for knowledge. Rather, she employs unusually restrictive standards of evidence. Thus, her claim that we lack knowledge of the external world is supported by considerations that would equally support the claim that we lack evidence for our beliefs about the external (...) world. These considerations do not threaten the truth of our ordinary attributions of evidence, however, for such attributions are context‐sensitive in their semantics.It is argued that this solution to the problem of the external world enjoys all of the benefits. and suffers none of the problems, of other solutions to the problem of the external world. (shrink)

Your evidence constrains your rational degrees of confidence both locally and globally. On the one hand, particular bits of evidence can boost or diminish your rational degree of confidence in various hypotheses, relative to your background information. On the other hand, epistemic rationality requires that, for any hypothesis h, your confidence in h is proportional to the support that h receives from your total evidence. Why is it that your evidence has these two epistemic powers? I argue that various proposed (...) accounts of what it is for something to be an element of your evidence set cannot answer this question. I then propose an alternative account of what it is for something to be an element of your evidence set. 1. Introduction2. The elements of one's evidence set are propositions3. Which kinds of propositions are in one's evidence set?3.1. Doxastic accounts of evidence3.2. Non-doxastic accounts of evidence4. Elaborating and defending the LIE. (shrink)

In the last decade, reading research has seen a paradigmatic shift. A new wave of computational models of orthographic processing that offer various forms of noisy position or context-sensitive coding have revolutionized the field of visual word recognition. The influx of such models stems mainly from consistent findings, coming mostly from European languages, regarding an apparent insensitivity of skilled readers to letter order. Underlying the current revolution is the theoretical assumption that the insensitivity of readers to letter order reflects the (...) special way in which the human brain encodes the position of letters in printed words. The present article discusses the theoretical shortcomings and misconceptions of this approach to visual word recognition. A systematic review of data obtained from a variety of languages demonstrates that letter-order insensitivity is neither a general property of the cognitive system nor a property of the brain in encoding letters. Rather, it is a variant and idiosyncratic characteristic of some languages, mostly European, reflecting a strategy of optimizing encoding resources, given the specific structure of words. Since the main goal of reading research is to develop theories that describe the fundamental and invariant phenomena of reading across orthographies, an alternative approach to model visual word recognition is offered. The dimensions of a possible universal model of reading, which outlines the common cognitive operations involved in orthographic processing in all writing systems, are discussed. (shrink)

I have argued that orthographic processing cannot be understood and modeled without considering the manner in which orthographic structure represents phonological, semantic, and morphological information in a given writing system. A reading theory, therefore, must be a theory of the interaction of the reader with his/her linguistic environment. This outlines a novel approach to studying and modeling visual word recognition, an approach that focuses on the common cognitive principles involved in processing printed words across different writing systems. These claims were (...) challenged by several commentaries that contested the merits of my general theoretical agenda, the relevance of the evolution of writing systems, and the plausibility of finding commonalities in reading across orthographies. Other commentaries extended the scope of the debate by bringing into the discussion additional perspectives. My response addresses all these issues. By considering the constraints of neurobiology on modeling reading, developmental data, and a large scope of cross-linguistic evidence, I argue that front-end implementations of orthographic processing that do not stem from a comprehensive theory of the complex information conveyed by writing systems do not present a viable approach for understanding reading. The common principles by which writing systems have evolved to represent orthographic, phonological, and semantic information in a language reveal the critical distributional characteristics of orthographic structure that govern reading behavior. Models of reading should thus be learning models, primarily constrained by cross-linguistic developmental evidence that describes how the statistical properties of writing systems shape the characteristics of orthographic processing. When this approach is adopted, a universal model of reading is possible. (shrink)

Stephen Schiffer has argued that contextualist solutions to skepticism rest on an implausible “error theory” concerning our own semantic intentions. Similar arguments have recently been offered also by Thomas Hofweber and Patrick Rysiew. I attempt to show how contextualists can rebut these arguments. The kind of self‐knowledge that contextualists are committed to denying us is not a kind of self‐knowledge that we need, nor is it a kind of self‐knowledge that we can plausibly be thought to possess.

The paper reviews historical and regional studies publications of Volyn periodicals in the 19 th -20 th centuries, which covered the Ukrainian-Polish-Russian relations. Their key theme lines are indicated, specifically a socio-economic line which addressed social inequality problems, enslavement of Ukrainian peasants by Polish gentry at the time when some Ukrainian regions were a part of the Polish-Lithuanian Commonwealth; a religious line which covered consequences of Polonization, threats to Orthodoxy, feats and courage of its defenders; an ethnographic line which attempted (...) to describe the history of origin of nations and the specifics of their national self-identification. It is shown that all these lines of publications featured different ideological tendencies. Thus some articles from ‘Volynskiye Gubernskiye Vedomosti’, ‘Pochayevskiye Izvestiya’ and ‘Volynskiye Yeparkhialniye Vedomosti’ were analyzed, which allowed to trace propaganda of the Russian Empire in the spirit of Russian monarchism and chauvinism spreading via press. Those processes had a rather negative impact on social and interethnic moods of the Ukrainian-Polish-Russian relations in the imperialist context. By contrast with the above, journalists of the democratic newspaper ‘Vestnik Volyni’ advocated the Polish and Ukrainian self-identification. (shrink)

Sometimes, there are reasons for which we believe, intend, resent, decide, and so on: these reasons are the “bases” of the latter, and the explanatory relation between these bases and the latter is what I will call “the basing relation.” What kind of explanatory relation is this? Dispositionalists claim that the basing relation consists in the agent’s manifesting a disposition to respond to those bases by having the belief, intention, resentment, and so on, in question. Representationalists claim that the basing (...) relation consists in the agent’s representing the bases as justifying the belief, intention, resentment, and so on, in question. This article shows that an adequate account of the basing relation requires a particular refinement and combination of these two views. On the hybrid account defended here, the basing relation involves a disposition exercise that is individuated by the agent’s object-involving de se representation of that very exercise as justifying. (shrink)

A direct method showing the Thomas precession for an evolution of any vector quantity (a spatial part of a four-vector) is proposed. A useful application of this method is a possibility to trace correctly the presence of the Thomas precession in the Bargmann-Michel-Telegdi equation. It is pointed out that the Thomas precession is not incorporated in the kinematical term of the Bargmann-Michel-Telegdi equation, as it is commonly believed. When the Bargmann-Michel-Telegdi equation is interpreted in curved spacetimes, this term is shown (...) to be equivalent to the affine connection term in the covariant derivative of the spin four-vector evolving in a gravitational field. It then contributes to the geodetic precession. The described problem is an interesting and unexpected example showing that approximate methods used in special relativity, in this case to identify the Thomas precession, can distort the true meaning of physical laws. (shrink)

I here describe meanings attributed to the term consciousness, extracted from the literature and from recent online discussions. Forty such meanings were identified and categorized according to whether they were principally about function or about experience; some overlapped but others were apparently mutually exclusive - and this list is by no means exhaustive. Most can be regarded as expressions of authors' views about the basis of con-sciousness, or opinions about the significance of aspects of its con-tents. The prospects for reaching (...) any single, agreed, theory independent definition of consciousness thus appear remote. How-ever, much confusion could be avoided if authors were always to spec-ify which aspects of consciousness they refer to when using the term. An example is outlined of how this can be done. (shrink)

Right now, I see a computer in front of me. Now, according to current philosophical orthodoxy, I could have the very same perceptual experience that I’m having right now even if I were not seeing a computer in front of me. Indeed, such orthodoxy tells us, I could have the very same experience that I’m having right now even if I were not seeing anything at all in front of me, but simply suffering from a hallucination. More generally, someone can (...) have the very same perceptual experience no matter whether she is enjoying a veridical perception of some mindindependent object, or merely hallucinating. What differs across these two kinds of case is not the kind of experience that she has, but rather the connections between her experience and the rest of the world. So say most philosophers. (shrink)

In his recent Knowledge and its Limits, Timothy Williamson argues that no non-trivial mental state is such that being in that state suffices for one to be in a position to know that one is in it. In short, there are no “luminous” mental states. His argument depends on a “safety” requirement on knowledge, that one’s confident belief could not easily have been wrong if it is to count as knowledge. We argue that the safety requirement is ambiguous; on one (...) interpretation it is obviously true but useless to his argument, and on the other interpretation it is false. (shrink)

Since the publication of W.V. Quine’s “Epistemology Naturalized”1, a growing number of self-described “naturalist” epistemologists have come to hold a particular view of what epistemology can and ought to be. In order to articulate this naturalist view, let me begin by describing the epistemological work that the naturalist tends to criticize – a motley that I will refer to collectively as “non-naturalist epistemology”. I will describe this motley in terms that are designed to capture the naturalist’s discontentment with it, as (...) follows: Non-naturalist epistemology has devoted itself, by and large, to addressing a small set of now familiar questions. What is it for someone to know that something is the case? What is it for someone to be justified in believing that something is the case? How does evidence confirm theory? To what degree ought one to be confident in a theory, given such-and-such evidence? What sorts of semantic properties do our various epistemic appraisals have? In order to answer these familiar questions, the non-naturalist epistemologist typically does not adduce any scientific findings concerning human cognition. Rather, she consults her intuitions about which properties are exemplified by various imagined cases. Unfortunately, if any of these familiar questions have been correctly answered, the correctness of these answers is not generally appreciated as such, even among professional non-naturalist epistemologists. Furthermore, virtually none of the work that’s been done in the course of trying to answer these familiar questions has any clear prospect of helping to guide or improve human intellectual conduct. As it’s been generally practiced then, non-naturalist epistemology offers us no useful advice, and.. (shrink)

Many philosophers accept a “privileged access” thesis concerning our own present mental states and mental events. According to these philosophers, if I am in mental state (or undergoing mental event) M, then – at least in many cases – I have privileged access to the fact that I am in (or undergoing) M. For instance, if I now believe that my cat is sitting on my lap, then (in normal circumstances) I have privileged access to the fact that I now (...) believe that my cat is sitting on my lap. Similarly, if I now imagine a parade coming down Main Street, then (again, in normal circumstances) I have privileged access to the fact that I am now imagining a parade coming down Main Street. And again, if it now visually appears to me as if there is a cloud in the sky, then (again, in normal circumstances) I have privileged access to the fact that it now visually appears to me as if there is a cloud in the sky. In each of these aforementioned cases, if circumstances are normal, then, these philosophers say, I have a distinctive kind of privileged epistemic access to facts about my own mental states or events. Of course, I don’t have privileged epistemic access to all facts about my own mental states or events. For instance, I don’t have privileged epistemic access to facts about which unconscious mental states or events I have. But I do have privileged epistemic access to many facts about my own mental states or events, and in particular to the various facts listed above. (shrink)

During meditation, consciousness/awareness is usually enhanced because of higher attention and concentration, which inter-dependently co-arise thru appropriate interactions between neural signals. Nāgārjuna rejects ‘inherent existence’ or ‘essence’ in favor of co-dependent origination (Pratītyasamutpāda), and that is also why he rejects causality; the entities that lack inherent existence dependently co-arise. Causality is a major issue in metaphysical views. The goals of this article are as follows: (I)Which entities lack ‘inherent existence’ or ‘essence’ and which ones inherently exist? (II) Do the entities (...) that lack inherent existence dependently co-arise and hence can we reject causality as in Nāgārjuna’s philosophy? (III) Do the entities that exist inherently cause entities that lack inherent existence? (IV) Do structure, function, experience, and environment cause each other? And (V)We critically analyze, extend, and examine Nāgārjuna’s philosophy of dependent co- origination in the extended Dual-Aspect Monism (eDAM) framework. Our analysis suggests that: (i) All conventional entities lack inherent existence. However, the dual-aspect unmanifested state of the primal entity (unified information field (UIF), emptiness, Śūnyatā, a neutral entity of Neutral Monism, or Brahman) inherently exists. The dual-aspect unmanifested state of UIF has (a) physical unified information field (PUIF, quantum vacuum, ‘zero- point field’/ZPF)as physical aspect and (b) unified potential consciousness information field (UPCIF) as the non-physical aspect. The subjective experiences (SEs) of objects and of the subject (self) are the excitations or modes of the UPCIF, so they are derived entities and hence they lack inherent existence. The dual-aspect unmanifested state of UIF/emptiness/Śūnyatā is fundamental and irreducible, and hence it inherently exists. (ii) The entities that lack inherent existence dependently co-arise, and hence causality for them can be rejected but instead conditions (such as efficient, percept-object, immediate, and dominant conditions) are necessary, as in Nāgārjuna’s philosophy. (iii) It is unclear that the dual-aspect primal entity UIF (Brahman/emptiness/Śūnyatā) that exists inherently cause entities that lack inherent existence. Most likely, all manifested entities inter-dependently co-arise thru natural laws built-in the UIF when necessary conditions for a manifested entity are satisfied thru interaction among relevant entities. (iv) It is unclear that structure, function, experience, and environment cause each other. A cause must, at the same time, be an effect of another cause. This implies that there is no first cause. Therefore, the structure, function, and experience inter-dependently co-arise thru co-evolution, co-development, sensorimotor co-tuning, and the interaction among relevant entities after the necessary conditions of manifestation of a specific entity are satisfied; and they are linked via conditions. (v) In the extended Dual-Aspect Monism (eDAM) framework, the physical aspect of a state of a manifested entity and that of the non-physical aspect (with functional, qualitative, cognitive, and experiential sub-aspects) of the same state of the same entity inseparably co-exist in each state of each entity at all levels. However, the degrees of manifestations of inseparable physical and non-physical aspects vary with the states, levels of entities, and contexts. Moreover, manifested entities lack inherent existence. In other words, the physical aspect and that of the non-physical aspect of manifested entities dependently co- arise, co-evolve, co-develop, and co-tuned for sensorimotor system appropriately depending on the levels of entities and contexts, which along with common “effective”information entail the inseparability of both aspects. In this sense, the symmetry between physical and non-physical aspects of a state of an entity (such as brain-mind system) is maintained, where the physical aspect (from third person perspective) does not cause the inseparable non-physical aspect (from first-person perspective) in living systems or vice- versa. (shrink)

: In prior work, we reported the followings: There are about forty meanings attributed to the term consciousness. They were identified and categorized according to whether they were principally about function or about experience. The frameworks for consciousness that are based on materialism, idealism, and dualism have serious problems. Therefore, an extended dual-aspect monism framework was proposed for consciousness, where the problematic materialism/panpsychism based integrated information theory was interpreted and the inseparability between physical and non-physical aspect holds because none of (...) the empirical fMRI/EEG data shows separability between aspects. This has the least number of problems compared to all other frameworks. It required a novel feature that the potentiality of primary irreducible subjective experiences co-exists with its physical aspect in nature. This missing information in science is provided by the eDAM, which addresses the hard problem of consciousness successfully, which is elaborated in detail in this article. Resumo: Em trabalho anterior, relatamos o seguinte: existem cerca de quarenta significados atribuídos ao termo consciência; eles foram identificados e categorizados conforme se referiam à função ou à experiência; as abordagens da consciência baseadas no materialismo, idealismo e dualismo têm sérios problemas. Por conseguinte, a abordagem do monismo de duplo aspecto estendido foi proposta para a consciência, em que: a problemática teoria da informação integrada, baseada no materialismo/pampsiquismo, foi interpretada; e se afirma a inseparabilidade entre aspectos físicos e não físicos, pois os dados empíricos das imagens por ressonância magnética funcional e eletroencefalografia não mostram dissociação entre os aspectos. O eDAM tem o menor número de problemas, em comparação com todas as outras abordagens, implicando que a potencialidade das experiências subjetivas, irredutíveis e primárias, coexiste com o seu aspecto físico na natureza. Esta informação, ausente na ciência, é fornecida pelo eDAM, que aborda com êxito o problema difícil da consciência, o que é elaborado em detalhe neste artigo. (shrink)

Historically, prominent proponents of the guidance deontological conception of epistemic justification have thought that the guidance deontological conception entails access internalism. Alvin Goldman has argued that this is not so, and that there is no good argument from the guidance deontological conception of justification to access internalism. This paper refutes Goldman's argument. If the guidance deontological conception of epistemic justification is correct, then so is access internalism.

Polarization in Western democracies and the collapse of centrally planned economies have led to calls for a redefinition of the state's core functions. This volume explores shifting conceptions of constitutional political economy anchoring the state from the viewpoints of theory, systems, and applications. It suggests why changes may be desirable and how these might be implemented. Part I addresses the writing of constitutions, the dynamic between constitutional order and civil society, the struggle between competitive and protectionist interests, the conflict between (...) protecting expectations and moral evolution, and the role of cultural explanations of constitutional development patterns. Part II explores the interplay between electoral systems and constitutional engineering, the internal costs of political coalitions, and campaigns in pluralistic elections. Part III investigates the quest for stable, dynamic federal states with particular attention to opportunities and pitfalls in Europe. With a foreword and contributions from Nobel Laureate James M. Buchanan. (shrink)

Your evidence constrains your rational degrees of confidence both locally and globally. On the one hand, particular bits of evidence can boost or diminish your rational degree of confidence in various hypotheses, relative to your background information. On the other hand, epistemic rationality requires that, for any hypothesis h, your confidence in h is proportional to the support that h receives from your total evidence. Why is it that your evidence has these two epistemic powers? I argue that various proposed (...) accounts of what it is for something to be an element of your evidence set cannot answer this question. I then propose an alternative account of what it is for something to be an element of your evidence set. 1 Introduction 2 The elements of one's evidence set are propositions 3 Which kinds of propositions are in one's evidence set? 3.1 Doxastic accounts of evidence 3.2 Non-doxastic accounts of evidence 4 Elaborating and defending the LIE CiteULike Connotea Del.icio.us What's this? (shrink)