Berit Brogaard

This chapter distinguishes between two kinds of ordinary multisensory experience that go beyond mere co-consciousness of features (e.g., the experience that results from concurrently hearing a sound in the hallway and seeing the cup on the table). In one case, a sensory experience in one modality creates a perceptual demonstrative to whose referent qualities are attributed in another sensory modality. For example, when you hear someone speak, auditory experience attributes audible qualities to a seen event, a person’s speaking motions. The second kind of multisensory experience attributes features experienced in several sensory modalities to one and the same object via a process of amodal perceptual integration, i.e., integration that occurs separately from processing within the individual sensory modalities. Multisensory experiences arising from holding and seeing a tomato or from seeing the Indian curry boil and smelling it are examples of the second kind of multisensory experience. At the end of the chapter we look at synesthesia, a kind of atypical multisensory experience, and argue that one version of this phenomenon may be able to shed light on the neural mechanism underlying amodally integrated multisensory experience.

The paper presents a number of empirical arguments for the perceptual view of speech comprehension. It then argues that a particular version of phenomenal dogmatism can confer immediate justification upon belief. In combination, these two views can bypass Davidsonian skepticism toward knowledge of meanings. The perceptual view alone, however, can bypass a variation on the Davidsonian argument. One reason Davidson thought meanings were not truly graspable was that he believed meanings were private (unlike behavior). But if the perceptual view of speech comprehension is correct, then meanings (or at least conveyed meanings) are public objects like other perceivable entities. Hence, there is no particular problem of language comprehension, even if meanings originate in “private” mental states.

It may seem that when you have an emotional response to a perceived object or event that makes it seem to you that the perceived source of the emotion possesses some evaluative property, then you thereby have prima facie, immediate justification for believing that the object or event possesses the evaluative property. Call this view ‘dogmatism about emotional justification’. We defend a view of the structure of emotional awareness according to which the objects of emotional awareness are derived from other experiences such as bodily sensation, inner awareness, sensory perception, memory, and imagination. On this basis, we argue that dogmatism about emotional justification is an untenable position, regardless of whether the special feature of an immediate justifier that makes it an immediate justifier is its presentational phenomenology or its evidence insensitivity.

Theorists with otherwise radically different commitments agree that epistemic modals mark the necessity or possibility of a prejacent proposition relative to a body of evidence or knowledge. However, there is vast disagreement about the semantics of epistemic modals, which stems in part from the fact that statements of epistemic possibility or necessity make no explicit reference to a speaker or group, an audience, or an evidence set. This volume introduces new philosophical papers that mark a significant contribution to the debate about epistemic modals.

This work explores the problem of the persistence of objects through change, given the assumption that objects are three-dimensional entities; and the continuation of events through time, given the assumption that events are four-dimensional entities. My main concern is to provide an informative metaphysical grounding of temporal continuation by identifying the primitive relations and properties into which this concept can be analyzed. My thesis is that entities a and b can be said to be the same three-dimensional object if a and b stand to each other in the relation of temporal continuation. a and b stand to each other in the relation of immediate temporal continuation, if they stand to each other in the relation of spatio-temporal continuity, they have the same essential parts, and they share a part in common. The parts of events also stand to each other in relations of temporal continuation, but they do not change across time and they need not stand to each other in the relation of spatio-temporal continuity. I propose a formal ontology of both objects and events, based on the primitive concepts of parthood and temporal continuation

Der Abschluß der Gastrulation, der gleichzeitig auch den Anfang der Neurulation bedeutet, ist die zeitliche Grenze, die Beginn eines menschlichen Individuums markiert. Oft wird behauptet, daß jegliche natürliche Veränderung stetig ist. Wie ist es dann aber möglich, eine zeitliche Grenze auszuzeichnen, an der ein menschliches Lebewesen zu existieren beginnt? Man beachte, was geschieht, wenn wir vom Thema zeitlicher Unstetigkeit zum räumlichen übergehen. Lebewesen haben räumliche Grenzen (wie sie durch ihre Haut geformt wird). Die letzteren sind genuine Diskontinuitäten, auch angesichts der Kontinuität der Materie in der physikalischen Welt. Und ebenso müssen wir schließen: Das Leben menschlicher Lebewesen hat zeitliche Grenzen - seinen Beginn und sein Ende - die auch angesichts der Kontinuität physikalischer, chemischer und biologischer Prozesse, in die sie involviert sind, echte Diskontinuitäten sind.

Der Abschluß der Gastrulation, der gleichzeitig auch den Anfang der Neurulation bedeutet, ist die zeitliche Grenze, die Beginn eines menschlichen Individuums markiert. Oft wird behauptet, daß jegliche natürliche Veränderung stetig ist. Wie ist es dann aber möglich, eine zeitliche Grenze auszuzeichnen, an der ein menschliches Lebewesen zu existieren beginnt? Man beachte, was geschieht, wenn wir vom Thema zeitlicher Unstetigkeit zum räumlichen übergehen. Lebewesen haben räumliche Grenzen (wie sie durch ihre Haut geformt wird). Die letzteren sind genuine Diskontinuitäten, auch angesichts der Kontinuität der Materie in der physikalischen Welt. Und ebenso müssen wir schließen: Das Leben menschlicher Lebewesen hat zeitliche Grenzen - seinen Beginn und sein Ende - die auch angesichts der Kontinuität physikalischer, chemischer und biologischer Prozesse, in die sie involviert sind, echte Diskontinuitäten sind.

Information may be defined as the conceptual or communicable part of the content of mental acts. The content of mental acts includes sensory data as well as concepts, particular as well as general information. An information system is an external (non-mental) system designed to store such content. Information systems afford indirect transmission of content between people, some of whom may put information into the system and others who are among those who use the system. In order for communication to happen, the conceptual systems of the originators and users of the information must be sufficiently similar. A formal conceptual framework that can provide the basis for exchange of information is termed an ontology. In its most fundamental form, ontology studies the most basic constituents of reality. Traditionally, ontology seeks to reflects structures that are independent of thought and cognition. The term ontology is used more broadly in artificial intelligence and software engineering, to refer to the conceptual basis for an information system.

In the specific case of geography, the real world consists on the one hand of physical geographic features (bona fide objects) and on the other hand of various fiat objects, for example legal and administrative objects, including parcels of real estate, areas of given soil types, census tracts, and so on. It contains in addition the beliefs and actions of human beings directed towards these objects (for example, the actions of those who work in land registries or in census bureaux), and the relations between these beliefs and actions and their targets. The document is a Report of the Specialist Meeting held under the auspices of the Varenius Project.

In The Principles of Psychology, William James (1981) has long ago suggested that attending to a stimulus can make it appear more ‘vivid and clear.’ Pre-cueing, the procedure in which a cue stimulus is presented to direct a subject’s attention to the location of a test stimulus, has been used to test James’ hypothesis (Posner, 1978; Carrasco et al., 2004; Carrasco, Loula, & Ho, 2006; Yeshurun & Rashal, 2010; Carrasco, 2011). One recent debate concerns whether the effects of pre-cueing and other perceptual changes associated with covert attention are evidence for cognitive penetration. In this paper, we argue that the pre-cueing effects associated with covert attention are similar to perceptual learning effects, despite the former having more transient effects than the latter.

Traditionally, philosophers have appealed to the phenomenological similarity between visual experience and visual imagery to support the hypothesis that there is significant overlap between the perceptual and imaginative domains. The current evidence, however, is inconclusive: while evidence from transcranial brain stimulation seems to support this conclusion, neurophysiological evidence from brain lesion studies (e.g., from patients with brain lesions resulting in a loss of mental imagery but not a corresponding loss of perception and vice versa) indicates that there are functional and anatomical dissociations between mental imagery and perception. Assuming that the mental imagery and perception do not overlap, at least, to the extent traditionally assumed, then the question arises as to what exactly mental imagery is and whether it parallels perception by proceeding via several functionally distinct mechanisms. In this review, we argue that even though there may not be a shared mechanism underlying vision for perception and conscious imagery, there is an overlap between the mechanisms underlying vision for action and unconscious visual imagery. On the basis of these findings, we propose a modification of Kosslyn’s model of imagery that accommodates unconscious imagination and explore possible explanations of the quasi-pictorial phenomenology of conscious visual imagery in light of the fact that its underlying neural substrates and mechanisms typically are distinct from those of visual experience.

Russell's new theory of denoting phrases introduced in "On Denoting" in Mind 1905 is now a paradigm of analytic philosophy. The main argument for Russell's new theory is the so-called 'Gray's Elegy' argument, which purports to show that the theory of denoting concepts promoted by Russell in the 1903 Principles of Mathematics is incoherent. The 'Gray's Elegy' argument rests on the premise that if a denoting concept occurs in a proposition, then the proposition is not about the concept. I argue that the premise is false. The 'Gray's Elegy' argument does not exhaust Russell's ammunition against the theory of denoting concepts. Another reason Russell rejects the theory is, as he says, that it cannot provide an adequate account of non-uniquely denoting concepts. In the last section of the paper, I argue that even though Russell was right in thinking that the theory of denoting concepts cannot provide an adequate account of non-uniquely denoting concepts, Russell's new theory does not succeed in eliminating the occurrence of all denoting concepts, as it requires a commitment to the existence of variables that indirectly denote their values. However, the view that variables are denoting concepts is unproblematic once the 'Gray's Elegy' argument is blocked.

Moral relativism provides a compelling explanation of linguistic data involving ordinary moral expressions like 'right' and 'wrong'. But it is a very radical view. Because relativism relativizes sentence truth to contexts of assessment it forces us to revise standard linguistic theory. If, however, no competing theory explains all of the evidence, perhaps it is time for a paradigm shift. However, I argue that a version of moral contextualism can account for the same data as relativism without relativizing sentence truth to contexts of assessment. This version of moral contextualism is thus preferable to relativism on methodological grounds

The phenomenon of synesthesia has undergone an invigoration of research interest and empirical progress over the past decade. Studies investigating the cognitive mechanisms underlying synesthesia have yielded insight into neural processes behind such cognitive operations as attention, memory, spatial phenomenology and inter-modal processes. However, the structural and functional mechanisms underlying synesthesia still remain contentious and hypothetical. The first section of the present paper reviews recent research on grapheme-color synesthesia, one of the most common forms of synesthesia, and addresses the ongoing debate concerning the role of selective attention in eliciting synesthetic experience. Drawing on conclusions of the first half, the paper’s second half examines the various models proposed to explain the cognitive mechanisms behind grapheme-color synesthesia, and discusses the explanatory virtues of a new model suggesting that grapheme-color synesthesia is grounded in memory. The last section offers an examination of some of the broader philosophical implications of synesthesia.

Back when researchers thought about the various forms that color vision could take, the focus was primarily on the retinal mechanisms. Since that time, research on human color vision has shifted from an interest in retinal mechanisms to cortical color processing. This has allowed color research to provide insight into questions that are not limited to early vision but extend to cognition. Direct cortical connections from higher-level areas to lower-level areas have been found throughout the brain. One of the classic questions in cognitive science is whether perception is influenced, and if so to what extent, by cognition and whether a clear distinction can be drawn between perception and cognition. Since perception is seen as providing justification for our beliefs about properties in the external world, these questions also have metaphysical and epistemological significance. The aim of this paper is to highlight some of the areas where research on color perception can shed new light on questions in the cognitive sciences. A further aim of the paper is to raise some questions about color research that are in dire need of further reflection and investigation.

Studies have shown that both serotonin and glutamate receptor systems play a crucial role in the mechanisms underlying drug-induced synesthesia. The specific nature of these mechanisms, however, continues to remain elusive. Here we propose two distinct hypotheses for how synesthesia triggered by hallucinogens in the serotonin-agonist family may occur. One hypothesis is that the drug-induced destabilization of thalamic projections via GABAergic neuronal circuits from sensory areas leads to a disruption of low-level, spontaneous integration of multisensory stimuli. This sort of integration regularly occurs when spatial and temporal attributes match. Destabilization of feedback loops, however, can result in incongruent experiences or binding of random thalamus activation with sensory input in a particular sensory modality. The second hypothesis builds on embodied cognition, cases in which visual images of external stimuli activate task-related neural regions. On this proposal, binding processes that do not normally generate awareness become accessible to consciousness as a result of decreased attentional discrimination among incoming stimuli.

It is sometimes argued that the fact that possession of perfect knowledge about the future is impossible, means that it is impossible for decisions to be rational. This reasoning is fallacious. If rationality is given a new interpretation, then decisions can be considered rational. A theory of decision that has as its basis Peirce’s theory of abduction can provide a new way of understanding decisions as rational processes. The Peircean theory of decision (i) considers decisions as part of a complete strategy, and (ii) shows that decision making is governed by the same rules as scientific abduction. These rules are neither permissive rules like rules of deductive inference nor predictive like laws of nature, but rather genuine laws of conduct that determine what step should be made, if a given end is to be reached.