Rocco J. Gennaro

This essay explores the topic of Dissociative Identity Disorder (formerly called “Multiple Personality Disorder”) with special attention to such Quadrophenia masterpieces as “Dr. Jimmy” and “The Real Me.” A number of major philosophical questions arise: Can two or more “persons” really inhabit the same body? How can we hold Dr. Jimmy morally responsible for the reprehensible actions of Mr. Jim? Wouldn’t it be wrong to do so if they are really different people? What is it to be the “same” person over time? Does Dr. Jimmy really have free will? The focus is on the much discussed and important notions of personal identity, free will, and moral responsibility.

For patients under anesthesia, it is extremely important to be able to ascertain from a scientific, third person point of view to what extent consciousness is correlated with specific areas of brain activity. Errors in accurately determining when a patient is having conscious states, such as conscious perceptions or pains, can have catastrophic results. Here, I argue that the effects of (at least some kinds of) anesthesia lend support to the notion that neither basic sensory areas nor the prefrontal cortex (PFC) is sufficient to produce conscious states. I also argue that it this is consistent with and supportive of the higher-order thought (HOT) theory of consciousness. I therefore disagree in some ways with Mehta and Mashour (2013), who argue that evidence from anesthesia mainly favors a first-order representational (FOR) theory, as opposed to HOT theory (and many other theories, for that matter).

The higher-order thought (HOT) theory of consciousness is a reductive representational theory of consciousness which says that what makes a mental state conscious is that there is a suitable HOT directed at that mental state. Although it seems that any neural realization of the theory must be somewhat widely distributed in the brain, it remains unclear just how widely distributed it needs to be. In section I, I provide some background and define some key terms. In section II, I argue against the view that HOT theory should treat first-order (i.e. world-directed) conscious states as requiring prefrontal cortical activity though it is reasonable to suppose that conscious states are realized in the brain. In section III, I then explore some of the key background metaphysical issues involved in understanding the nature of consciousness, such as the debate between realism and idealism as well as the prospects for solving the so-called “hard problem” of consciousness. Some of the differences in question often mirror the traditional differences between Western and Eastern perspectives on the nature of consciousness. Overall, I argue that some form of realism and physicalism is more plausible than the opposing views. I also argue that materialists (and especially HOT theorists) can offer plausible replies to the hard problem.

Consciousness is arguably the most important interdisciplinary area in contemporary philosophy of mind, with an explosion of research over the past thirty years from philosophers, psychologists, and scientists. It is also perhaps the most puzzling aspect of the world despite the fact that it is familiar to each of us. Consciousness also seems resistant to any straightforward physical explanation. This book introduces readers to the contemporary problem of consciousness, providing a clear introduction to the overall landscape and a fair-minded critical survey of various theories of consciousness. Beginning with essential historical background to the problem of consciousness, Rocco Gennaro explores the following key topics and debates: the metaphysical problem of consciousness, including varieties of dualism and materialism; consciousness and neuroscience, particularly the question of whether consciousness can be reduced to brain activity or attentional mechanisms; representational and cognitive theories of consciousness; consciousness and psychopathology; animals, machines, and consciousness. Extensive use is made of interesting phenomena throughout the book, ranging from blindsight, synaesthesia, and change blindness to phantom limb syndrome, split-brain cases, and dissociative identity disorder (DID). The inclusion of chapter summaries, annotated further reading, and a glossary make this book essential reading for anyone seeking a clear and informative overview of the problem of consciousness, not only in philosophy but related fields such as psychology and cognitive science.

The so-called 'higher-order thought' theory of consciousness says that what makes a mental state conscious is the presence of a suitable higher-order thought directed at it . The HOT theory has been or could be attacked from two apparently opposite directions. On the one hand, there is what Stubenberg has called 'the problem of the rock' which, if successful, would show that the HOT theory proves too much. On the other hand, it might also be alleged that the HOT theory does not or cannot address the so-called 'hard problem' of phenomenal consciousness. If so, then the HOT theory would prove too little. We might say, then, that the HOT theory is arguably between a rock and a hard place. In this paper, I critically examine these objections and defend the HOT theory against them. In doing so, I hope to show that the HOT theory, or at least some version of it, neither proves too little nor too much, but is just right. I also show that these two objections are really just two sides of the same coin, and that the HOT theory is immune from David Chalmers' criticisms of other attempted reductionist accounts of consciousness

There has been an explosion of work on consciousness in the last 30–40 years from philosophers, psychologists, and neurologists. Thus, there is a need for an interdisciplinary, comprehensive volume in the field that brings together contributions from a wide range of experts on fundamental and cutting-edge topics. The Routledge Handbook of Consciousness fills this need and makes each chapter’s importance understandable to students and researchers from a variety of backgrounds. Designed to complement and better explain primary sources, this volume is a valuable "first-stop" publication for undergraduate or graduate students enrolled in any course on "Consciousness," "Philosophy of Mind," or "Philosophy of Psychology," as well as a valuable handbook for researchers in these fields who want a useful reference to have close at hand. The 34 chapters, all published here for the first time, are divided into three parts: Part I covers the "History and Background Metaphysics" of consciousness, such as dualism, materialism, free will, and personal identity, and includes a chapter on Indian philosophy.　 Part II is on specific "Contemporary Theories of Consciousness," with chapters on representational, information integration, global workspace, attention-based, and quantum theories.　 Part III is entitled "Major Topics in Consciousness Research," with chapters on psychopathologies, dreaming, meditation, time, action, emotion, multisensory experience, animal and robot consciousness, and the unity of consciousness.　 Each chapter begins with a brief introduction and concludes with a list of "Related Topics," as well as a list of "References," making the volume indispensable for the newcomer and experienced researcher alike.　

Jean-Paul Sartre believed that consciousness entails self-consciousness, or, even more strongly, that consciousnessisself-consciousness. As Kathleen Wider puts it in her terrific bookThe Bodily Nature of Consciousness: Sartre and Contemporary Philosophy of Mind,‘all consciousness is, by its very nature, self-consciousness.’ I share this view with Sartre and have elsewhere argued for it at length. My overall aim in this paper is to examine Sartre's theory of consciousness against the background of the so-called ‘higher-order thought theory of consciousness’ (the HOT theory) which, in turn, will shed light on the structure of conscious mental states as well as on Sartre's theory of (self-) consciousness and reflection. Another goal of this paper is, following Wider, to show how Sartre's views can be understood from a contemporary analytic perspective. Sartre's theory of consciousness is often confusing to the so-called ‘analytic Anglo-American’ tradition, but I attempt to show how this obstacle can be overcome against the backdrop of a specific contemporary theory of consciousness.

The Who were one of the most memorable and influential of the 1960s British Invasion bands—memorable because of their loudness and because they destroyed instruments during performances, and influential because of their success in crafting “Power Pop” singles like “My Generation” and “I Can See for Miles,” long-playing albums Live at Leeds and Who’s Next, and the “rock operas” Tommy and Quadrophenia. The themes that principal songwriter Pete Townshend imparted into The Who’s music drew upon the group’s mostly working-class London upbringings and early Mod audiences: frustration, angst, irony, and a youthful inclination to lash out. Like some of his rock and roll contemporaries, Townshend was also affected by religious ideas coming from India and the existential dread he felt about the possibility of nuclear war. During a career that spanned three decades, The Who gave their fans and rock critics a lot to think about. The remarkable depth and breadth of The Who’s music and their story as one of the most exciting and provocative rock bands over the last half-century are the subjects of the philosophical explorations in this collection.

Synesthesia is the “union of the senses” whereby two or more of the five senses that are normally experienced separately are involuntarily and automatically joined together in experience. For example, some synesthetes experience a color when they hear a sound or see a letter. In this paper, I examine two cases of synesthesia in light of the notions of “experiential parts” and “conscious unity.” I first provide some background on the unity of consciousness and the question of experiential parts. I then describe two very different cases of synesthesia. Finally, I critically examine the cases in light of two central notions of “unity.” I argue that there is good reason to think that the neural “vehicles” of conscious states are distributed widely and can include multiple modalities. I also argue that some synesthetic experiences do not really enjoy the same “object unity” associated with normal vision.

[Final version in Philosophical Papers, 2000] Much has been made over the past few decades of two related problems in aesthetics. First, the "feeling fiction problem," as I will call it, asks: is it rational to be moved by what happens to fictional characters? How can we care about what happens to people who we know are not real?[i] Second, the so-called "paradox of tragedy" is embodied in the question: Why or how is it that we take pleasure in artworks which are clearly designed to cause in us such feelings as sadness and fear?[ii] Various solutions to these puzzles have been proposed, but my primary aim is neither to offer a novel solution nor to summarize and critique most of the alternatives.[iii] My focus instead will be on the issue of consciousness and, more specifically, to view these problems from the point of the view of the so-called "higher-order thought theory of consciousness" . Although some work on these puzzles have raised important questions about the nature of consciousness and "aesthetic experience," no attempt has yet been made to examine them in light of a specific theory

It has long been known that brain damage has important negative effects on one’s mental life and even eliminates one’s ability to have certain conscious experiences. It thus stands to reason that when all of one’s brain activity ceases upon death, consciousness is no longer possible and so neither is an afterlife. It seems clear that human consciousness is dependent upon functioning brains. This essay reviews some of the overall neurological evidence from brain damage studies and concludes that our argument from brain damage has been vindicated by such overwhelming evidence. It also puts forth a more mature philosophical rationale against an afterlife and counters several replies to the argument. 1. Philosophical Background -- 2. The Dependence of Consciousness on the Brain: Some Preliminary Evidence -- 3. Brain Damage, Lesion Studies, and the Localization of Mental Function - 3.1 Perception - 3.2 Awareness, Comprehension, and Recognition - 3.3 Memory - 3.4 Personality - 3.5 Language - 3.6 Emotion - 3.7 Decision-Making - 3.8 Social Cognition and Theory of Mind - 3.9 Moral Judgment and Empathy - 3.10 Neurological Disorders and Disease - 3.11 The Unity of Consciousness -- 4. Objections and Replies - 4.1 Souls, Minds, and Energy Fields - 4.2 The Instrument Theory - 4.3 The Embodied Soul Alone is Affected -- 5. Conclusion

There has been much discussion about the nature and even existence of so-called “pure conscious events” (PCEs). PCEs are often described as mental events which are non-conceptual and lacking all experiential content (Forman 1990). For a variety of reasons, a number of authors have questioned both the accuracy of such a characterization and even the very existence of PCEs (Katz 1978, Bagger 1999). In this chapter, I take a somewhat different, but also critical, approach to the nature and possibility of PCEs. I focus on several overlapping views found in recent analytic philosophy of mind and examine PCEs in light of them. After introducing terminology and some preliminary matters, I examine whether or not the “higher-order thought (HOT) theory of consciousness” rules out the possibility of PCEs, and conversely, whether or not PCEs show that the HOT theory cannot apply to all conscious states. The HOT theory says that what makes a mental state conscious is that it is accompanied by a higher-order thought to the effect that “I am in mental state M now.” A related theme will be to assess PCEs in light of the recent debate between so-called “conceptualists” and those who believe that there are “non-conceptual contents of experience.” Conceptualism, to which I am very sympathetic, is basically the view that all conscious experience is structured by concepts possessed by the subject. I argue that PCEs are indeed conceptual and so no threat to conceptualism. For example, standard criticisms of conceptualism do not apply to PCEs. Finally, I examine the possibility that PCEs are not conscious at all. In the end, my overall conclusion is that we should hold that PCEs are indeed compatible with both HOT theory and conceptualism or seriously question the idea that PCEs are conscious at all.

This collection presents some of the most vital and original recent writings on Descartes, Spinoza, and Leibniz, the three greatest rationalists of the early modern period. Their work offered brilliant and distinct integrations of science, morals, metaphysics, and religion, which today remain at the center of philosophical discussion. The essays written especially for this volume explore how these three philosophical systems treated matter, substance, human freedom, natural necessity, knowledge, mind, and consciousness. The contributors include some of the most prominent writers in the field, including Jonathan Bennett, Michael Della Rocca, Jan A. Cover, Catherine Wilson, Stephen Voss, Edwin Curley, Don Garrett, and Margaret D. Wilson.

Questions on the nature of concepts in philosophy, psychology, and cognitive science, such as ‘What are concepts?’ and ‘What is it to possess a concept?’ are notoriously difficult to answer. For example, are concepts abstract mind-independent objects in some Platonic or Fregean sense, or are they better understood as mental representations, such as constituents of thoughts? A common view in cognitive science is that thought is based on word-like mental representations; some say that possessing a concept C involves demonstrating some kind of ability with respect to C’s. But which ability? Other longstanding issues concern a proper theory of the structure of concepts. These questions are tackled here by Simon Baron-Cohen, Peter Carruthers, and a distinguished cast of scientists and philosophers.

This is a fine and important collection of eleven recently published essays by Peter Carruthers, a leading figure in contemporary philosophy of mind. The book contains a very helpful introduction that provides a nice overview of Carruthers’ basic views and orients the reader to the key issues. The introduction also presents a brief summary of the eleven chapters that comprise the remainder of the book. Only three of the essays initially appeared prior to Carruthers’ important 2000 book Phenomenal Consciousness: A Naturalistic Theory. One of these is significantly rewritten: an essay entitled “Natural Theories of Consciousness,” which will be familiar to readers of Psyche since it was the subject of a symposium in volumes 4-6. There is also one entirely new essay entitled “Dual-Content Theory: the Explanatory Advantages”. Thus, there is much to learn about Carruthers’ theory of consciousness even for those very familiar with his 2000 book. Indeed, one might think of this collection as elaborating upon Carruthers’ views as found in his earlier book. In the relatively short period of a few years, Carruthers has managed to publish an impressive number of quality essays, which comprise most of this anthology. It is very convenient to have these nicely written essays all in one place. For those unfamiliar with Phenomenal Consciousness, this book is still readable on its own and contains many helpful summaries of Carruthers’ earlier work.