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. (shrink)

Integration information theories posit that the integration of information is necessary and/or sufficient for consciousness. In this paper, we focus on three of the most prominent information integration theories: Information Integration Theory, Global Workspace Theory, and Attended Intermediate-Level Theory. We begin by explicating each theory and key concepts they utilize. We then argue that the current evidence indicates that the integration of information is neither necessary nor sufficient for consciousness. Unlike GWT and AIR, IIT maintains that conscious experience is both (...) necessary and sufficient for consciousness. We present empirical evidence indicating that simple features are experienced in the absence of feature integration and argue that it challenges IIT’s necessity claim. In addition, we challenge IIT’s sufficiency claim by presenting evidence from hemineglect cases and amodal completion indicating that contents may be integrated and yet fail to give rise to subjective experience. Moreover, we present empirical evidence from subjects with frontal lesions who are unable to carry out simple instructions and argue that they are irreconcilable with GWT. Lastly, we argue that empirical evidence indicating that patients with visual agnosia fail to identify objects they report being conscious of present a challenge to AIR’s necessity claim. (shrink)

According to the hierarchical model of sensory information processing, sensory inputs are transmitted to cortical areas, which are crucial for complex auditory and speech processing, only after being processed in subcortical areas (Hickok and Poeppel, 2007; Rauschecker and Scott, 2009). However, studies using electroencephalography (EEG) indicate that distinguishing simultaneous auditory inputs involves a widely distributed neural network, including the medial temporal lobe, which is essential for declarative memory, and posterior association cortices (Alain et al., 2001; Squire et al., 2004). More (...) recent studies have even demonstrated plasticity of auditory signals as low as the brainstem (Suga, 2008). Collectively, studies suggest that the functional architecture of perceptual processing involves primarily top-down modulation (Suga et al., 2002; Gilbert and Li, 2013; Chandrasekaran et al., 2014). Top-down influences exerted throughout the auditory systems (Lotto and Holt, 2011) include: memory (Goldinger, 1998)1, attention (Choi et al., 2014), which has been found to modulate auditory encoding in the cochlea, a subcortical area (Maison et al., 2001), (prior) knowledge of syntax or words (Ganong, 1980; Warren, 1984)2, and experience-based expectations pertaining to the speaker's accent (Deutsch, 1996; Deutsch et al., 2004; Irino and Patterson, 2006), gender (Johnson et al., 1999), and vocal folds or tract (Irino and Patterson, 2002; Patterson and Johnsrude, 2008) . (shrink)

While much has been written about whether visual perception is cognitively penetrable, the analogous question with respect to auditory perception has received very little attention. Here we argue that instances of top-down modulation of auditory processing, although extensive, do not constitute cases of cognitive penetration of auditory perception since the changes in the phenomenology of auditory perception caused by top-down influences cannot plausibly be attributed to the listeners’ discursive thoughts.

The question of whether blindsight is a form of unconscious perception continues to spark fierce debate in philosophy and psychology. One side of the debate holds that while the visual information categorized in blindsight is not access-conscious, it is nonetheless a form of perception, albeit a form of unconscious perception. The opposition, by contrast, holds that blindsight is just a form of degraded conscious perception that makes the categorized information harder to access because it is degraded. In this chapter, we (...) address the opposition’s arguments for thinking that blindsight is a form of degraded conscious vision and then argue that the residual awareness found in blindsight is a form of non-perceptual awareness. To back this claim, we examine the residual visual abilities to detect and discriminate colour found in some blindsight patients and show that residual consciousness in blindsight is indirect and lacks the phenomenal character characteristic of conscious vision. (shrink)

In "How to Speak of the Colors", Mark Johnston’s claims that eliminativism would require us to jettison colour discourse. In this paper, I challenge Johnston’s claim. I argue that a particular version of eliminativism, i.e., prescriptive colour fictionalism, allows us to continue employing colour discourse as we have thus far in the absence of colours. In doing so, it employs statistical models in its base discourse to derive high-level statistical constructs that can be linked to the fiction via bridge principles.

There is little doubt that we perceive the world as tensed—that is, as consisting of a past, present and future each with a different ontological status—and transient—that is, as involving a passage of time. We also have the ability to execute precisely timed behaviors that appear to depend upon making correct temporal judgments about which changes are truly present and which are not. A common claim made by scientists and philosophers is that our experiences of entities enduring through transient changes (...) are illusory and that our apparently accurately timed behaviors do not reflect dynamical time. We argue that our experiences of objects enduring through transient changes need not be thought of as illusory even if time is not dynamic at the fundamental level of reality. For, the dynamic properties we experience objects as having need not be fundamental properties. They could be weakly emergent from static, temporal properties. Temporal properties, on this view, are similar to ordinary properties like that of being solid, which are correctly experienced as properties of medium-sized material bodies even though they are not instantiated at the fundamental level of reality. (shrink)

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. (shrink)

Cognition can influence action. Your belief that it is raining outside, for example, may cause you to reach for the umbrella. Perception can also influence cognition. Seeing that no raindrops are falling, for example, may cause you to think that you don’t need to reach for an umbrella. The question that has fascinated philosophers and cognitive scientists for the past few decades, however, is whether cognition can influence perception. Can, for example, your desire for a rainy day cause you to (...) see, hear, or feel raindrops when you walk outside? More generally, can our cognitive states influence the way we see the external world? In this paper, I discuss three experiments on memory colour effects. In these experiments, subjects systematically made different colour matches or adjustments for object-patches representing objects that have prototypical colours and neutral object-patches. I argue that these differences are not merely differences in judgments but are best explained in terms of phenomenology. However, I show that these differences in phenomenology can be explained without reference to cognitive states such as colour concepts or beliefs. (shrink)

Rapid advances in the field of neuroimaging techniques including magnetoencephalography (MEG), electroencephalography (EEG), functional MRI (fMRI), diffusion tensor imaging (DTI), voxel based morphomentry (VBM), and optical imaging, have allowed neuroscientists to investigate neural processes in ways that have not been possible until recently. Combining these techniques with advanced analysis procedures during different conditions such as hypnosis, psychiatric and neurological conditions, subliminal stimulation, and psychotropic drugs began transforming the study of neuroscience, ushering a new paradigm that may allow neuroscientists to tackle (...) the hard problem of consciousness. (shrink)

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. (shrink)

There is no abstract for this chapter. The following is a summary. -/- We distinguish between, explicit, inadvertent, and habitual racist actions. We argue that while inadvertent bigots and habitual racists are inclined to (sincerely) deny that they committed a racially motivated action, they have different reasons for their denial. Inadvertent bigots are denying it because, however deeply they search, they are not going to find any such motive. Habitual racists, by contrast, may hold explicit egalitarian attitudes but they are (...) nonetheless implicitly racially motivated. There is thus an implicit stressful conflict between their covert racist intentions and their overt egalitarian attitudes. While they aren’t aware of the source of this distress, cognitive dissonance theory predicts that they nevertheless will engage in dissonance-reducing strategies. Specifically, we argue that habitual racists will be inclined to confabulate a description of the action in non-racial terms. (shrink)

The aim of this paper is to show that a business ethic based on the ethics of care is superior to traditional business ethics. It shall be argued that neo-liberalism is inconsistent with the ethics of care since it either excludes caring institutions or treats them as preferences to be satisfied as the ‘free’ market sees fit. Unlike traditional business ethics, a business ethic based on the ethics of care can play an important role in challenging the neo-liberal paradigm. Many (...) business issues that are treated as peripheral by traditional business ethics can thus take central stage in a business ethic based on the ethics of care. (shrink)

Cognitive dissonance is a kind of ambivalence in which your apprehension of the fact that you performed or want to perform an action of which you disapprove gives rise to psychological distress. This, in turn, causes you to solicit unconscious processes that can help you reduce the distress. Here we look at the role that cognitive dissonance plays in explaining the inner workings of racism. We distinguish between three types of racist acts: inadvertent bigotry, habitual racism, and explicit racism. Unlike (...) inadvertent bigots, habitual and explicit racists are racially motivated and they therefore are responsible for their racial acts. But unlike the explicit racists, habitual racists aren’t immediately aware of their racial motives. As habitual racists hold overt egalitarian attitudes, the conflict between their over attitudes and their covert racial motives are a potential source of distress. To avoid having to face their racial motives, they tend to turn to confabulation. While explicit racists aren’t bothered by a similar form of cognitive dissonance, their explicit racial attitudes and desires to cause black people to suffer are at odds with majority public opinion, which can be a source of shame. To escape this kind of negative self-realization, explicit racists seek to justify their actions as honorable or as necessary for the good of society. We conclude by briefly pondering how cognitive dissonance can be used as a strategy for transforming habitual and explicit racists. (shrink)

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. -/- . (shrink)

The aim of this paper is to address the problem of unemployment. Economists generally agree that a zero rate of unemployment is not only unattainable but also undesirable within capitalism. This is problematic because, as it will be shown, unemployment has adverse effects on both individuals and societies. Assuming that the primary aim of economics is to improve people’s lives, it behooves us to find a solution to the problem of unemployment. Two solutions will be offered. The first works within (...) the confines of the capitalist system –it requires instituting welfare policies that alleviate the adverse effects of unemployment. The second involves a paradigm change –it requires replacing capitalism with an alternative economic system that is consistent with a zero rate of unemployment. (shrink)

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. (shrink)

There is no abstract for this chapter, which introduces the reader to the papers in the book. The following is only a sample of the chapter: -/- It is quite common for people not to be able to make up their minds. One of the most famous literary examples comes from Shakespeare’s play Hamlet, in which the protagonist Hamlet poses the well-known question “To be or not to be, that is the question,” while contemplating suicide. In the play, Hamlet is (...) expressing discontent about life, as he thinks of the pain and unfairness it involves. At the same time, he fears that death maybe worse. It seems that he desires to have it both ways: he wants to both end his life and not end his life. This is, of course, a case of ambivalence where the stakes are very high. When we are ambivalent, it’s often about much more mundane aspects of life. (shrink)

Several of Rousseau’s critics begin with the presupposition that his writings are inconsistent or incoherent and proceed to locate the “essence” of his philosophy in some of his writings while excluding others. Ernst Cassirer is among the few philosophers who have attempted to defend Rousseau’s claim to consistency. Despite its broad influence, Cassirer’s interpretation has remained largely unchallenged. The aim of this paper is twofold. Firstly, it aims to show that Cassirer’s interpretation undermines (a) the important role Rousseau assigns to (...) pity in both the state of nature and civil society and (b) the significant role the general will plays in his political theory. Secondly, it proposes an alternative interpretation that succeeds in uniting Rousseau’s opus. (shrink)

According to metaphysical tensism, there is an objective, albeit ever changing, present moment corresponding to our phenomenal experiences :635–642, 2013). One of the principle objections to metaphysical tensism has been Einstein’s argument from special relativity, which says that given that the speed of light is constant, there is no absolute simultaneity defined in terms of observations of light rays . In a recent paper, Brogaard and Marlow :635–642, 2013) argue that this objection fails. We argue that Brogaard and Marlow’s argument (...) fails to show that special relativity does not pose a threat to metaphysical tensism. (shrink)

In this paper, I propose a fictionalist approach to the problem of color. On my view, which I call prescriptive color fictionalism, we can continue to employ our color discourse as we have thus far even if it turns out that there are no colored objects. My proposal is a species of error theory. As such, it does not describe our current practices. It is rather proposed as a prescription to a problem, namely that the color theory we accept (according (...) to which there are colored objects) is false. By formulating a fictionalist account of color and showing that we can preserve ordinary color discourse in the absence of colored objects, I provide a solution to the problem of color. (shrink)

This book collects original essays by top scholars that address questions about the nature, origins, and effects of ambivalence. While the nature of agency has received an enormous amount of attention, relatively little has been written about ambivalence or how it relates to topics such as agency, rationality, justification, knowledge, autonomy, self-governance, well-being, social cognition, and various other topics. Ambivalence presents unique questions related to many major philosophical debates. For example, it relates to debates about virtues, rationality, and decision-making, agency (...) or authenticity, emotions, and social or political metacognition. It is also relevant to a variety of larger debates in philosophy and psychology, including nature vs. nature, objectivity vs. subjectivity, or nomothetic vs. idiographic. The essays in this book offer novel and wide-ranging perspectives on this emerging philosophical topic. They will be of interest to researchers and advanced students working in ethics, epistemology, philosophy of mind, philosophy of psychology, and social cognition. (shrink)

This volume provides novel approaches to a variety of questions about ambivalence and the role it plays in our lives. As the contributions illustrate, ambivalence finds its way into a gamut of philosophical and psychological debates about rationality, skepticism, emotions, intentionality, racism, global justice, well-being, mindfulness, and intersubjectivity. These debates concern questions like: “Is ambivalence distinct from uncertainty?”, “Does ambivalence affect the way we respond to paradoxes?”, “How can two nations come to an agreement about nuclear disarmament?”, “Is ambivalence irrational (...) when it frustrates effective action?”, “Why do people who have had training in law enforcement commit such heinous acts of violence?”, “How does mindfulness resolve ambivalence?”, and “Why isn’t valuing your interests and ends and taking them seriously sufficient for self-love?” . (shrink)

Developmental synesthesia typically involves either the stimulation of one sensory modality which gives rise to an experience in a different modality (when a sound, for example, evokes a colour) or the stimulation of a single sensory modality giving rise to different qualitative aspects of experience (when the sight of a number, for example, evokes a colour). These occurrences seem to support Grice’s (1989) argument that sense modalities cannot be individuated without reference to the introspective-character of experience. This, however, threatens intentionalism (...) which maintains that the qualitative character of experience is exhausted, or fully determined by, its intentional content. Ross (2001) attempts to defuse Grice’s argument by proposing an account that does not appeal to the qualitative character of experience to individuate sense modalities. I argue that his account is unsuccessful. (shrink)

The statement “Mr. Darcy proposes to Elizabeth” seems true in Jane Austin’s Pride and Prejudice (even though it may not actually appear in the text) while the statement “Mr. Darcy is a detective” seems false. One explanation for this intuition is that when we read or talk about fictional stories, we implicitly employ the fictional operator “It is fictional that” or “It is part of the story that.” “It is fictional that Mr. Darcy proposes to Elizabeth” expresses a true proposition (...) while “It is fictional that Mr. Darcy is a detective” does not. Fictive statements can be abbreviated as “In F, P”. Determining what statements are fictionally true in a story requires providing truth conditions for statements of the form “In F, P.” This paper proposes an analysis of truth in fiction and examines the notion of make-believe. (shrink)

Studies show that there are widespread intrasubjective and intersubjective color variations among normal perceivers. These variations have serious ramifications in the debate about the nature and ontology of color. It is typical to think of the debate about color as a dispute between objectivists and subjectivists. Objectivists hold that colors are perceiver-independent physical properties of objects while subjectivists hold that they are either projections onto external objects or dispositions objects have to look colored. I argue that individual color variations present (...) difficulties, albeit not the same kind, for both objectivism and subjectivism. Lastly, I propose an alternative account that handles such variations nicely. (shrink)

Abstract: -/- We present a teaching activity, whose aim is to enhance students’ understanding of color perception by introducing them to intersubjective color variations among normal perceivers. The approach can be used in different disciplines, including biology, philosophy, psychology, physics, or statistics, for different purposes and with college students having various levels of sophistication and scientific training.