As artificial intelligence (AI) continues to advance, it is natural to ask whether AI systems can be not only intelligent, but also conscious. I consider why people might think AI could develop consciousness, identifying some biases that lead us astray. I ask what it would take for conscious AI to be a realistic prospect, challenging the assumption that computation provides a sufficient basis for consciousness. I'll instead make the case that consciousness depends on our nature as living organisms (...) – a form of biological naturalism. I lay out a range of scenarios for conscious AI, concluding that real artificial consciousness is unlikely along current trajectories, but becomes more plausible as AI becomes more brain-like and/or life-like. I finish by exploring ethical considerations arising from AI that either is, or convincingly appears to be, conscious. If we sell our minds too cheaply to our machine creations, we not only overestimate them – we underestimate ourselves. (shrink)

In a new study, Ben-Haim et al. use subliminal stimuli to separate conscious and unconscious perception in macaques. A programme of this type, using a range of cognitive tasks, is a promising way to look for conscious perception in more controversial cases.

Empirical evidence challenges many of the assumptions that underlie traditional philosophical and commonsense conceptions of human agency. It has been suggested that this evidence threatens also to undermine free will and moral responsibility. In this paper, I will focus on the purported threat to moral responsibility. The evidence challenges assumptions concerning the ability to exercise conscious control and to act for reasons. This raises an apparent challenge to moral responsibility as these abilities appear to be necessary for morally responsible (...) agency. I will argue that this challenge collapses once the underlying conditions on moral responsibility are specified in sufficient detail. I will argue, in other words, that the empirical evidence does not support a challenge to the assumption that we are, in general, morally responsible agents. In the final section, I will suggest that empirical research on human agency is nevertheless relevant to various questions about moral responsibility. (shrink)

My goal is threefold. First, building on the basis of Husserl’s phenomenology of the imagination, I will argue that phantasy is a specific type of intentional experience, which intends its objects as neutralized presentifications. Second, I will turn to dreams and argue that non-lucid dreams are unconscious phantasies, which cannot be conceived in the above-mentioned way. This realization will bring us to the third task. When recognized as the most extreme form of unconscious phantasy, dreams compel us to raise anew (...) the fundamental question: what is the nature of phantasy experience? According to the perspective I will here develop, phantasy is a specific field of experience that lies between two extremes: the fully translucent mode of the as if consciousness and the thoroughly opaque mode of absorption. Most of our phantasies, both conscious and unconscious, voluntary and involuntary, are lived somewhere between these two extremes. (shrink)

Wittgenstein distinguished between two uses of “I”, one “as object” and the other “as subject”, a distinction that Shoemaker elucidated in terms of a notion of immunity to error through misidentification (“IEM”); first-personal claims are IEM in the use “as subject”, but not in the other use. Shoemaker argued that memory judgments based on “personal”, episodic memory are not strictly speaking IEM; Gareth Evans disputed this. Similar issues have been debated regarding self-ascriptions of conscious thoughts based on first-personal awareness, (...) in the light of claims of “thought insertion” in schizophrenic patients. The paper aims to defend a Shoemaker-like line by critically engaging with some compelling recent contributions. Methodologically, the paper argues that to properly address these issues the all-inclusive term “thought” should be avoided, and specific types of thoughts countenanced. (shrink)

I argue that the neural realizers of experiences of trying are not distinct from the neural realizers of actual trying . I then ask how experiences of trying might relate to the perceptual experiences one has while acting. First, I assess recent zombie action arguments regarding conscious visual experience, and I argue that contrary to what some have claimed, conscious visual experience plays a causal role for action control in some circumstances. Second, I propose a multimodal account of (...) the experience of acting. According to this account, the experience of acting is a temporally extended, co-conscious collection of agentive and perceptual experiences, functionally integrated and structured both by multimodal perceptual processing as well as by what an agent is, at the time, trying to do. (shrink)

In America today, the problem of achieving racial justice--whether through "color-blind" policies or through affirmative action--provokes more noisy name-calling than fruitful deliberation. In Color Conscious, K. Anthony Appiah and Amy Gutmann, two eminent moral and political philosophers, seek to clear the ground for a discussion of the place of race in politics and in our moral lives. Provocative and insightful, their essays tackle different aspects of the question of racial justice; together they provide a compelling response to our nation's (...) most vexing problem.Appiah begins by establishing the problematic nature of the idea of race. He draws on the scholarly consensus that "race" has no legitimate biological basis, exploring the history of its invention as a social category and showing how the concept has been used to explain differences among groups of people by mistakenly attributing various "essences" to them. Appiah argues that, while people of color may still need to gather together, in the face of racism, under the banner of race, they need also to balance carefully the calls of race against the many other dimensions of individual identity; and he suggests, finally, what this might mean for our political life.Gutmann examines alternative political responses to racial injustice. She argues that American politics cannot be fair to all citizens by being color blind because American society is not color blind. Fairness, not color blindness, is a fundamental principle of justice. Whether policies should be color-conscious, class conscious, or both in particular situations, depends on an open-minded assessment of their fairness. Exploring timely issues of university admissions, corporate hiring, and political representation, Gutmann develops a moral perspective that supports a commitment to constitutional democracy.Appiah and Gutmann write candidly and carefully, presenting many-faceted interpretations of a host of controversial issues. Rather than supplying simple answers to complex questions, they offer to citizens of every color principled starting points for the ongoing national discussions about race. (shrink)

Self-evidencing describes the purported predictive processing of all self-organising systems, whether conscious or not. Self-evidencing in itself is therefore not sufficient for consciousness. Different systems may however be capable of self-evidencing in different, specific and distinct ways. Some of these ways of self-evidencing can be matched up with, and explain, several properties of consciousness. This carves out a distinction in nature between those systems that are conscious, as described by these properties, and those that are not. This approach (...) throws new light on phenomenology, and suggests that some self-evidencing may be characteristic of consciousness. (shrink)

The sensory constraint on conscious thought says that if a thought is phenomenally conscious, its phenomenal properties must be reducible to some sensory phenomenal character. I argue that the burgeoning psychological literature on aphantasia, an impoverishment in the ability to generate mental imagery, provides a counterexample to the sensory constraint. The best explanation of aphantasics’ introspective reports, neuroimaging, and task performance is that some aphantasics have conscious thoughts without sensory mental imagery. This argument against the sensory constraint (...) supports the existence of a non-sensory phenomenology of thought. Moreover, this argument can be extended to show that this non-sensory phenomenology determines a thought content. Finally, it can potentially diagnose the disagreement over cognitive phenomenology in the philosophy of mind, as such disagreement may turn on interpersonal variation in mental imagery. (shrink)

This book aims to offer an account of conscious experience and of concepts that help us understand empirical reasoning and empirical dialectic. The account offered possesses, it is claimed, two virtues. First, it provides great theoretical freedom. It allows the theoretician freedom to radically reconceive the world. The theoretician may, for example, begin with the conception that colors are genuine qualities of physical bodies and may, in light of empirical findings, shift to the conception that colors are not genuine (...) qualities at all. Second, the account grants empirical reason a great power to constrain: empirical reason can force a particular conception of the self and the world on the rational inquirer. These seemingly contrary virtues are reconciled through a novel treatment of presentation and appearances in the account offered of conscious experience and a novel treatment of ostensive definitions in the account offered of concepts. The argument of the book is buttressed by a critical study of the principal approaches to experience and reason found in the philosophical literature.--. (shrink)

This paper does three things. First, it presents a new interpretation of Avicenna’s influential argument, the Flying Man. One nice feature of this interpretation is that it vindicates the argument’s validity. Unlike the cogito-inspired case for dualism, the Flying Man isn’t undermined by neglect of referential opacity. Second, it compares Avicenna’s argument with Anscombe’s take on the possibility of conscious thought under sensory deprivation. Finally, the paper concludes with a brief critical assessment. Several possibilities are considered.

Is perceptual processing in dedicated sensory areas sufficient for conscious perception? Localists say ‘Yes—given some background conditions.’ Prefrontalists say ‘No: conscious perceptual experience requires the involvement of prefrontal structures.’ I review the evidence for prefrontalism. I start by presenting correlational evidence. In doing so, I answer the ‘report argument’, according to which the apparent involvement of the prefrontal cortex in consciousness stems from the requirement for reports. I then review causal evidence for prefrontalism and answer the ‘lesion argument’, (...) which purports to show that prefrontalism is wrong because lesions to the prefrontal cortex do not abolish consciousness. I conclude that multiple sources of evidence converge toward the view that the prefrontal cortex plays a significant role in consciousness. (shrink)

It is natural to assume that the fine-grained and highly accurate spatial information present in visual experience is often used to guide our bodily actions. Yet this assumption has been challenged by proponents of the Two Visual Systems Hypothesis, according to which visuomotor programming is the responsibility of a “zombie” processing stream whose sources of bottom-up spatial information are entirely non-conscious. In many formulations of TVSH, the role of conscious vision in action is limited to “recognizing objects, selecting (...) targets for action, and determining what kinds of action, broadly speaking, to perform”. Our aim in this study is to show that the available evidence not only fails to support this dichotomous view but actually reveals a significant role for conscious vision in motor programming, especially for actions that require deliberate attention. (shrink)

What is involved in the consciousness of a conscious, "occurrent" propositional attitude, such as a thought, a sudden conjecture or a conscious decision? And what is the relation of such consciousness to attention? I hope the intrinsic interest of these questions provides sufficient motivation to allow me to start by addressing them. We will not have a full understanding either of consciousness in general, nor of attention in general, until we have answers to these questions. I think there (...) are constitutive features of these states which can be identified by broadly philosophical investigation, and in the early part of this paper I will try to do some of that identification. -/- Beyond the intrinsic interest of the topic, the nature of such conscious attitudes is highly pertinent to a philosophical account of psychological self-knowledge. So I will also say something about the significance of the constitutive features of these conscious attitudes for a philosophical account of how it can be that a thinker has a distinctive kind of knowledge of some of his mental states. The general challenge in this area is to find anything intermediate between the unexceptionable but uninformative, on the one hand, and the absolutely unbelievable on the other. (shrink)

David Milner and Melvyn Goodale’s dissociation hypothesis is commonly taken to state that there are two functionally specialized cortical streams of visual processing originating in striate (V1) cortex: a dorsal, action-related “unconscious” stream and a ventral, perception-related “conscious” stream. As Milner and Goodale acknowledge, findings from blindsight studies suggest a more sophisticated picture that replaces the distinction between unconscious vision for action and conscious vision for perception with a tripartite division between unconscious vision for action, conscious vision (...) for perception, and unconscious vision for perception. The combination excluded by the tripartite division is the possibility of conscious vision for action. But are there good grounds for concluding that there is no conscious vision for action? There is now overwhelming evidence that illusions and perceived size can have a significant effect on action (Bruno & Franz, 2009; Dassonville & Bala, 2004; Franz & Gegenfurtner, 2008; McIntosh & Lashley, 2008). There is also suggestive evidence that any sophisticated visual behavior requires collaboration between the two visual streams at every stage of the process (Schenk & McIntosh, 2010). I nonetheless want to make a case for the tripartite division between unconscious vision for action, conscious vision for perception, and unconscious vision for perception. My aim here is not to refute the evidence showing that conscious vision can affect action but rather to argue (a) that we cannot gain cognitive access to action-guiding dorsal stream representations, and (b) that these representations do not correlate with phenomenal consciousness. This vindicates the semi-conservative view that the dissociation hypothesis is best understood as a tripartite division. (shrink)

According to Milner and Goodale’s dual visual systems (DVS) theory, a division obtains between visual consciousness and motor action, in that the visual system producing conscious vision (the ventral stream) is distinct from the one guiding action (the dorsal stream). That there would be this division is often taken (by Andy Clark and others) to undermine the folk view on how consciousness and action relate. However, even if this division obtains, this leaves open the possibility that con- scious ventral (...) information is often transmitted to the uncon- scious dorsal stream and then used to guide action, a possibility seeming to preserve a significant role for consciousness in action. This article assesses this possibility. In course of doing so, we will review those arguments recently having been made against the DVS view on how visual consciousness and action relate (ones due to, e.g., Briscoe and Schwenkler, or Schenk and McIntosh). What we will find is that, if we properly analyze the data upon which these arguments are based, we are still left with the impression that the DVS view is largely correct; i.e., it is only rarely that visual experience guides action. (shrink)