This dissertation concerns the location and nature of phenomenal qualities. Arguably, these qualities naively seem to belong to perceived external objects. However, we also seem to experience phenomenal qualities in hallucinations, and in hallucinations we do not perceive any external objects. I present and argue for a theory of the phenomenal qualities, "brain theory", which claims that all phenomenal qualities we experience are physical properties instantiated in the brain, regardless of whether they are experienced in veridical perceptions or in hallucinations. (...) I begin by more carefully identifying the phenomenal qualities, discussing how they are related to "qualia" and "phenomenal character". Then I present brain theory, and investigate its implications for the perceptual relations we stand in to external objects, noting that it is mostly neutral. I also compare brain theory to a similar theory of perception advocated by Bertrand Russell. Next, I provide an overview over the competing theories of phenomenal qualities, and relate them to theories of perception, such as representationalism, qualia theory, sense data theory and disjunctivism. The majority of my argumentation for brain theory focuses on arguing that the phenomenal qualities are instantiated in the brain, rather than on arguing that they are physical properties. Instead, I largely assume physicalism. However, even independently of the physicalism assumption, I show that we have reason to believe that phenomenal qualities are experienced in hallucinations, and that qualities experienced in hallucinations are instantiated in internal objects, such as our brains or sense data. In the first step towards this conclusion I argue that theories which deny that phenomenal qualities are experienced in hallucinations face serious problems. In the next step I argue that theories which deny that phenomenal qualities experienced in hallucinations are instantiated in internal objects face serious problems. Finally, an important part of the argumentation is my replies to objections against brain theory, including common sense objections and the "observation objection". From these conclusions, together with the physicalism assumption, I infer that we have reason to believe that brain theory is true about hallucinations. On this basis, I then argue, through a generalizing argument, that the same is the case for veridical perceptions. (shrink)

The principal aim of my thesis is to provide a unified theory of imagining, that is, a theory which aspires to capture the common nature of all central forms of imagining and to distinguish them from all paradigm instances of non-imaginative phenomena. The theory which I intend to put forward is a version of what I call the Agency Account of imagining and, accordingly, treats imaginings as mental actions of a certain kind. More precisely, it maintains that imaginings are mental (...) actions that aim at the formation of episodic representations, the content of which is directly determined by what we want them to represent. My defence of this version of the Agency Account happens in two stages. On the one hand, I try to show that it is both extensionally adequate and explanatorily illuminating with respect to those mental states or projects which are clear instances of either imaginative or non- imaginative phenomena. And on the other hand, I seek to demonstrate that the most plausible alternative to the Agency Account - namely the Cognitive Account according to which it is distinctive of imaginings that they are non-cognitive phenomena and thus to be contrasted with perceptions, judgements, and so on - is bound to fail as a unified theory of imagining. The dissertation contains five main parts. In the first, I specify in more detail what a unified account of imagining has to achieve and, in particular, which phenomena it is supposed to capture. The second part presents the Cognitive Account, thereby focussing on Brian O'Shaughnessy's sophisticated version of it while the third part is reserved for the evaluation and rejection of the Cognitive Account. In the fourth part, I develop my version of the Agency Account of imagining. And the fifth and last part is concerned with the accommodation of potential counterexamples to it. (shrink)

This dissertation examines representationalism about sensory phenomenology—the claim that for a sensory experience to have a particular phenomenal character is a matter of it having a particular representational content. I focus on a particular issue that is central to representationalism: whether reductive versions of the theory should be internalist or externalist. My primary goals are to demonstrate that externalist representationalism fails to provide a reductive explanation for phenomenal qualities, and to present a reductive internalist version of representationalism that utilizes the (...) empirical framework of psychophysics and neuroscience to develop a philosophical theory of content. The bulk of the project is an attempt to provide the outlines of what such an empirically-based representationalist theory would look like. In chapter 2, I argue that reductive externalist representationalism fails because it is vulnerable to the problem of bad structural correlation: the mismatch between the structure of phenomenal qualities and the structure of physical properties “tracked” by our sensory systems with which phenomenal qualities are identified. In chapter 3, I develop the outlines of a reductive internalist version of representationalism that characterizes phenomenal qualities as modes of presentation of sensory representations that can be reductively characterized in terms of a location in a psychophysically-defined quality space, which can in turn be given a neurophysiological interpretation. In addition, I argue that the neural mechanisms responsible for the representation of spatial locations and visual objects serve a referential role in sensory psychosemantics that grounds the intentionality of sensory states. In chapter 5 I provide a detailed account of the representation of spatial locations in sensory experience, and in chapter 6 I examine the “binding problem”, demonstrating how object-based sensory representations function to demonstratively pick out sensory individuals without explicitly representing any of their features. I describe the resulting view as methodological representationalism: an attempt to demonstrate how a particular philosophical theory of sensory phenomenology can be integrated into the empirical framework of cognitive science, and thereby provide an explanatory psychosemantic framework for sensory phenomenology that is valuable to both philosophers and cognitive scientists. (shrink)

In this paper I scrutinize the so-called China Brain thought experiment famously articulated by Ned Block to see whether it refutes functionalism as a theory of consciousness. I argue that it does not. Block’s case rests on a single premise, P, in the following argument: a creature with a China Brain would lack qualitative experience, despite its being a functional replica of you or me, and working under the assumption that we have rich mental life complete with qualia. Yet if (...) a China Brain-creature were truly and completely R, and yet P were true as the thought experiment purports to show, functionalism would have to be false. Since I want to reject that conclusion, I must do one of the following: deny that Mr. Li is truly R in the first place; grant that Mr. Li is truly R and grant that P, but deny that we have M; or grant that Mr. Li is truly R and grant that we have M, but deny that P. I opt for the third option. First, I paint a picture according to which Mr. Li's having M would not seem as implausible as it does at first. That is, I try to make the premise P seem less intuitive. But in case I am unpersuasive in this first approach, I employ a second tactic as well. This one is to suggest that we cannot know, even in principle whether P, so it is an irrelevant intuition upon which to base the China Brain attack. In any case, the China Brain fails to provide a true counterexample to functionalism. (shrink)

The identity of conscious states and brain states must remain a mystery until we find a way of characterising both sides of the equation in terms that have the same ‘dimensions’. In this paper I stress the need for ‘dual currency concepts’ that not only are but can be seen to be as appropriate for talking about, say, the experience of pain as for talking about the corresponding working of the brain. In the light of evolutionary theory I make a (...) radically new proposal for what the common dimension is, centred on the idea of ‘authorship’. (shrink)

Daniel Dennett provides many compelling reasons to question the existence of phenomenal experiences in his paper titled Quining Qualia, however, from the perspective of the individual, qualia appear to be an inherent feature of consciousness. The act of reflecting on one’s experiences suggests that subjective feelings and sensations are a necessary element of human life, as personal opinions on various artistic works are apt to demonstrate. This paper argues that by considering subjective experiences from a naturalized functionalist perspective, a comprehensive (...) explanation for qualia can be provided given its origins in evolutionary biology. As information passing through the nervous system, qualia serve to guide the behaviour of individuals to ultimately facilitate survival. Specifically, qualia are representations of environmental features, existing as information messages supported by neural physiology and encoded in electrochemical formats. In addition to addressing the Hard Problem of Consciousness and clarifying the four properties Dennett associates with qualia, this theoretical foundation enables further metaphysical discussion on the nature of consciousness more generally. Although many outstanding questions on the contents of subjective experiences are apt to linger given the explanatory gap, a robust theory for the existence of qualia can be developed through the integration of ideas and concepts from a variety of domains. (shrink)

Implicit association of racial stereotypes is brought about by social conditioning. This conditioning can be explained by attractor networks. Reducing implicit bias through meditation can show the effectiveness of reducing the rigidity of attractor networks, thereby reducing subjectivity. Mindfulness meditation has shown to reduce bias from the use of one single guided session conducted before performing an Implicit Association Test. Attachment to socially conditioned racial bias should become less prevalent through practicing meditation over time. An experimental model is proposed to (...) test this claim along with a reconceptualization of consciousness based in meditative practice. (shrink)

Dretske has recently offered a representational theory of perceptual experience - considered as paradigmatic of the qualitative and phenomenal aspects of our mental life. This theory belongs, as do his previous works, to a naturalistic approach to mental representation.

Can an understanding be formed of how sensory experience might be presented or manipulated in visual art in order to promote a relational concept of the senses, in opposition to the customary, capitalist notion of sensation as a private possession, as a sensory impression that is mine? I ask the question in the light of recent visual art theory and practice which pursue relational, ecological ambitions. As Arnold Berleant, Nicolas Bourriaud, and Grant Kester see it, ecological ambition and artistic form (...) should correspond, but they fail to recognize sensation as a site where the ecological cause can be fought. Jacques Rancière argues for the political force of the senses, but his distribution of the sensible does not address the particularity of sensory experience. I identify the difference between these approaches within recent relational or ecological aesthetics and my position on sensibility, and indicate some of the problems involved in referring to the senses. I set out the concepts that are central to the cultivation of relational sensibility: style, autofiguration, and the mobility of sensory meaning, extrapolated from Maurice Merleau-Ponty’s discussion of Paul Cézanne. They amount to positioning the senses ontologically as movements along lines of conceptual-sensory connection and implication, based on the transfer of meanings created artistically through style and autofiguration. (shrink)

Thinking about how the law might decide whether to extend legal personhood to artificial agents provides a valuable testbed for philosophical theories of mind. Further, philosophical and legal theorising about personhood for artificial agents can be mutually informing. We investigate two case studies, drawing on legal discussions of the status of artificial agents. The first looks at the doctrinal difficulties presented by the contracts entered into by artificial agents. We conclude that it is not necessary or desirable to postulate artificial (...) agents as legal persons in order to account for such contracts. The second looks at the potential for according sophisticated artificial agents with legal personality with attendant constitutional protections similar to those accorded to humans. We investigate the validity of attributes that have been suggested as pointers of personhood, and conclude that they will take their place within a broader matrix of pragmatic, philosophical and extra-legal concepts. (shrink)

The aims of this book are: to explain the notion of phenomenal consciousness in a non-metaphorical way that minimizes controversial assumptions; to characterize the relationship between the phenomenal character and intentionality of visual experience, visual imagery and non-imagistic thought; and to clarify the way in which conscious experience is intrinsically valuable to us. It argues for the legitimacy of a first-person approach to these issues--one which relies on a distinctively first-person warrant for judgments about one's own experience. Thought experiments are (...) employed in which one is asked to conceive of having various forms of blindsight, so as to make consciousness intellectually conspicuous by its absence in such hypothetical scenarios. It is argued that theories of mind that would commit us to denying either the conceptual or the metaphysical possibility of these scenarios neglect the occurrence of consciousness in this phenomenal sense. (shrink)

One of the major concerns for the contemporary philosophy of mind involves the problem of qualia. The word qualia refers to our subjective experience of the world and includes the properties of our experience that cannot be located in the world external to our minds. For example, the ineffable feel of a blue experience when one looks at the sky, or the pain one feels when one is stuck with a pin. These sensations are the essence of our experience and (...) yet cannot be pointed to in the external world. (shrink)