Could a single human being ever have multiple conscious minds? Some human beings do. The corpus callosum is a large pathway connecting the two hemispheres of the brain. In the second half of the twentieth century a number of people had this pathway cut through as a treatment for epilepsy. They became colloquially known as split-brain subjects. After the two hemispheres of the brain are cortically separated in this way, they begin to operate unusually independently of each other in the realm of thought, action, and conscious experience, almost as if each hemisphere now had a mind of its own. Philosophical discussion of the split-brain cases has overwhelmingly focused on questions of psychological identity in split-brain subjects, questions like: how many subjects of experience is a split-brain subject? How many intentional agents? How many persons? On the one hand, under experimental conditions, split-brain subjects often act in ways difficult to understand except in terms of each of them having two distinct streams or centers of consciousness. Split-brain subjects thus evoke the duality intuition: that a single split-brain human being is somehow composed of two thinking, experiencing, and acting things. On the other hand, a split-brain subject nonetheless seems like one of us, at the end of the day, rather than like two people sharing one body. In other words, split-brain subjects also evoke the unity intuition: that a split-brain subject is one person. Elizabeth Schechter argues that there are in fact two minds, subjects of experience, and intentional agents inside each split-brain human being: right and left. On the other hand, each split-brain subject is nonetheless one of us. The key to reconciling these two claims is to understand the ways in which each of us is transformed by self-consciousness.

In The Unity of Consciousness Tim Bayne draws on philosophy, psychology, and neuroscience in defence of the claim that consciousness is unified. In the first part of the book Bayne develops an account of what it means to say that consciousness is unified. Part II applies this account to a variety of cases - drawn from both normal and pathological forms of experience - in which the unity of consciousness is said to break down. Bayne argues that the unity of consciousness remains intact in each of these cases. Part III explores the implications of the unity of consciousness for theories of consciousness, for the sense of embodiment, and for accounts of the self. In one of the most comprehensive examinations of the topic available, The Unity of Consciousness draws on a wide range of findings within philosophy and the sciences of the mind to construct an account of the unity of consciousness that is both conceptually sophisticated and scientifically informed.

This book on consciousness spans the relation of individuals with the world and the individual's constitution at different organizational levels. Covering a diversity of perspectives and presenting a theoretical synthesis, the book will stimulate the current debate on the nature of consciousness, strengthening a more systematic approach to the phenomenon.

Most people experience themselves as two sided, but have you ever wondered if there are really two minds in each of us? Schiffer gives us overwhelming evidence that each side of our brain possesses an autonomous, distinct personality. This brilliant, provocative book illustrates how the interaction of these two minds actually determines our psychological nature and the emotional problems we may experience. OF TWO MINDS transforms our understanding of how and why we experience emotional distress, and suggests a path to a more harmonious relationship between our two selves.

“I’ve gained deeper understanding listening to Rupert Spira than I have from any other exponent of modern spirituality. Reality is sending us a message we desperately need to hear, and at this moment no messenger surpasses Spira and the transformative words in his essays.” —Deepak Chopra, author of You Are the Universe, Spiritual Solutions, and Super Brain Our world culture is founded on the assumption that the Big Bang gave rise to matter, which in time evolved into the world, into which the body was born, inside which a brain appeared, out of which consciousness at some late stage developed. As a result of this “matter model,” most of us believe that consciousness is a property of the body. We feel that it is “I,” this body, that knows or is aware of the world. We believe and feel that the knowing with which we are aware of our experience is located in and shares the limits and destiny of the body. This is the fundamental presumption of mind and matter that underpins almost all our thoughts and feelings and is expressed in our activities and relationships. The Nature of Consciousness suggests that the matter model has outlived its function and is now destroying the very values it once sought to promote. For many people, the debate as to the ultimate reality of the universe is an academic one, far removed from the concerns and demands of everyday life. After all, life happens independently of our models of it. However, The Nature of Consciousness will clearly show that the materialist paradigm is a philosophy of despair and, as such, the root cause of unhappiness in individuals. It is a philosophy of conflict and, as such, the root cause of hostilities between families, communities, and nations. Far from being abstract and philosophical, its implications touch each one of us directly and intimately. An exploration of the nature of consciousness has the power to reveal the peace and happiness that truly lie at the heart of experience. Our experience never ceases to change, but the knowing element in all experience—consciousness, or what we call “I”—itself never changes. The knowing with which all experience is known is always the same knowing. Being the common, unchanging element in all experience, consciousness does not share the qualities of any particular experience: it is not qualified, conditioned, or limited by experience. The knowing with which a feeling of loneliness or sorrow is known is the same knowing with which the thought of a friend, the sight of a sunset, or the taste of ice cream is known. Just as a screen is never disturbed by the action in a movie, so consciousness is never disturbed by experience; thus it is inherently peaceful. The peace that is inherent in us—indeed that is us—is not dependent on the situations or conditions we find ourselves in. In a series of essays that draw you, through your own direct experience, into an exploration of the nature of this knowing element that each of us calls “I,” The Nature of Consciousness posits that consciousness is the fundamental reality of the apparent duality of mind and matter. It shows that the overlooking or ignoring of this reality is the root cause of the existential unhappiness that pervades and motivates most people’s lives, as well as the wider conflicts that exist between communities and nations. Conversely, the book suggests that the recognition of the fundamental reality of consciousness is the first step in the quest for lasting happiness and the foundation for world peace.

When Tom DeBaggio turned fifty-seven in 1999, he thought he was about to embark on the relaxing golden years of retirement -- time to spend with his family, his friends, the herb garden he had spent decades cultivating and from which he made a living. Then, one winter day, he mentioned to his doctor during a routine exam that he had been stumbling into forgetfulness, making his work difficult. After that fateful visit, and a subsequent battery of tests over several months, DeBaggio joined the legion of twelve million others afflicted with Alzheimer's disease. But under such a curse, DeBaggio was also given one of the greatest gifts: the ability to chart the ups and downs of his own failing mind. Losing My Mind is an extraordinary first-person account of early onset Alzheimer's -- the form of the disease that ravages younger, more alert minds. DeBaggio started writing on the first day of his diagnosis and has continued despite his slipping grasp on one of life's greatest treasures, memory. In an inspiring and detailed account, DeBaggio paints a vivid picture of the splendor of memory and the pain that comes from its loss. Whether describing the happy days of a youth spent in a much more innocent time or evaluating how his disease has affected those around him, DeBaggio poignantly depicts one of the most important parts of our lives -- remembrance -- and how we often take it for granted. But to DeBaggio, memory is more than just an account of a time long past, it is one's ability to function, to think, and ultimately, to survive. As his life becomes reduced to moments of clarity, the true power of thought and his ability to connect to the world shine through, and in DeBaggio's case, it is as much in the lack of functioning as it is in the ability to function that one finds love, hope and the relaxing golden years of peace. At once an autobiography, a medical history and a testament to the beauty of memory, Losing My Mind is more than just a story of Alzheimer's, it is the captivating tale of one man's battle to stay connected with the world and his own life.