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The Dinosaur Artist: Obsession, Betrayal, and the Quest for Earth's Ultimate Trophy
by Paige WilliamsIn 2012, a New York auction catalogue boasted an unusual offering: "a superb Tyrannosaurus skeleton." In fact, Lot 49135 consisted of a nearly complete T. bataar, a close cousin to the most famous animal that ever lived. The fossils now on display in a Manhattan event space had been unearthed in Mongolia, more than 6,000 miles away. At eight-feet high and 24 feet long, the specimen was spectacular, and when the gavel sounded the winning bid was over $1 million. <p><p> Eric Prokopi, a thirty-eight-year-old Floridian, was the man who had brought this extraordinary skeleton to market. A onetime swimmer who spent his teenage years diving for shark teeth, Prokopi's singular obsession with fossils fueled a thriving business hunting, preparing, and selling specimens, to clients ranging from natural history museums to avid private collectors like actor Leonardo DiCaprio. <p> But there was a problem. This time, facing financial strain, had Prokopi gone too far? As the T. bataar went to auction, a network of paleontologists alerted the government of Mongolia to the eye-catching lot. As an international custody battle ensued, Prokopi watched as his own world unraveled. <p> In the tradition of The Orchid Thief, The Dinosaur Artist is a stunning work of narrative journalism about humans' relationship with natural history and a seemingly intractable conflict between science and commerce. A story that stretches from Florida's Land O' Lakes to the Gobi Desert, The Dinosaur Artist illuminates the history of fossil collecting--a murky, sometimes risky business, populated by eccentrics and obsessives, where the lines between poacher and hunter, collector and smuggler, enthusiast and opportunist, can easily blur. <p> In her first book, Paige Williams has given readers an irresistible story that spans continents, cultures, and millennia as she examines the question of who, ultimately, owns the past.
The Dinosaur Expert (Mr. Tiffin's Classroom Series)
by Margaret McNamaraJoin Mr. Tiffin and his students on a trip to a natural history museum and learn all about dinosaurs and the scientists who discovered them!Mr. Tiffin and his students are back in another picture book, and this time the focus is on dinosaur-loving Kimmy. During a field trip to the natural history museum, Kimmy is thrilled to share what she knows about the Stegosaurus and the Archaeopteryx and even the ginormous Titanosaurus. That changes when one of her classmates questions whether girls can be paleontologists. Kimmy starts to feel shy. What if they can't? What if no one wants to hear what she has to say? It will take some help from Mr. Tiffin--and from a famous scientist--for Kimmy to find her voice again.Join Mr. Tiffin's class as they learn about dinosaurs big and small, feathered and scaly, winged and ocean-dwelling. And root for Kimmy, the dinosaur expert . . . who might just learn something about herself.
The Dinosauria
by Halszka Osmólska David B. Weishampel Peter DodsonWhen the The Dinosauria was first published more than a decade ago, it was hailed as "the best scholarly reference work available on dinosaurs" and "an historically unparalleled compendium of information." This second, fully revised edition continues in the same vein as the first but encompasses the recent spectacular discoveries that have continued to revolutionize the field. A state-of-the-science view of current world research, the volume includes comprehensive coverage of dinosaur systematics, reproduction, and life history strategies, biogeography, taphonomy, paleoecology, thermoregulation, and extinction. Its internationally renowned authors--forty-four specialists on the various members of the Dinosauria--contribute definitive descriptions and illustrations of these magnificent Mesozoic beasts. The first section of The Dinosauria begins with the origin of the great clade of these fascinating reptiles, followed by separate coverage of each major dinosaur taxon, including the Mesozoic radiation of birds. The second part of the volume navigates through broad areas of interest. Here we find comprehensive documentation of dinosaur distribution through time and space, discussion of the interface between geology and biology, and the paleoecological inferences that can be made through this link. This new edition will be the benchmark reference for everyone who needs authoritative information on dinosaurs.
The Direction of Time
by Hans ReichenbachEver a source of philosophical conjecture and debate, the concept of time represents the beating heart of physics. This final work by the distinguished physicist Hans Reichenbach represents the culmination and integration of a lifetime's philosophical contributions and inquiries into the analysis of time. The result is an outstanding overview of such qualitative, or topological, attributes of time as order and direction.Beginning with a discussion of the emotive significance of time, Reichenbach turns to an examination of the time order of mechanics, the time direction of thermodynamics and microstatistics, the time direction of macrostatistics, and the time of quantum physics. He offers coherent explanations of the analytic methods of scientific philosophy in the investigation of probability, quantum mechanics, the theory of relativity, and causality — methods that he not only applies here but also helped to develop and refine.Physics Today observed that "For a generation Professor Reichenbach has worked as almost no other man to bring to the interpretation of modern physics the critical and reflective thinking of a trained philosopher. Most physicists who retain an interest in philosophy, and many who wanted simply to understand physics, have read some of the earlier books of Reichenbach. This one is . . . the best by a good deal." Introduction. Appendix. Index.
The Disappearance of Butterflies
by Josef H. ReichholfIn the last fifty years our butterfly populations have declined by more than eighty per cent and butterflies are now facing the very real prospect of extinction. It is hard to remember the time when fields and meadows were full of these beautiful, delicate creatures – today we rarely catch a glimpse of the Wild Cherry Sphinx moths, Duke of Burgundy or the even once common Small Tortoiseshell butterflies. The High Brown Fritillary butterfly and the Stout Dart Moth have virtually disappeared. The eminent entomologist and award-winning author Josef H. Reichholf began studying butterflies in the late 1950s. He brings a lifetime of scientific experience and expertise to bear on one of the great environmental catastrophes of our time. He takes us on a journey into the wonderful world of butterflies - from the small nymphs that emerge from lakes in air bubbles to the trusting purple emperors drunk on toad poison - and immerses us in a world that we are in danger of losing forever. Step by step he explains the science behind this impending ecological disaster, and shows how it is linked to pesticides, over-fertilization and the intensive farming practices of the agribusiness. His book is a passionate plea for biodiversity and the protection of butterflies.
The Disappearing Spoon: And Other True Tales of Madness, Love, and the History of the World from the Periodic Table of the Elements
by Sam KeanFrom New York Times bestselling author Sam Kean comes incredible stories of science, history, finance, mythology, the arts, medicine, and more, as told by the Periodic Table. Why did Gandhi hate iodine (I, 53)? How did radium (Ra, 88) nearly ruin Marie Curie's reputation? And why is gallium (Ga, 31) the go-to element for laboratory pranksters?*The Periodic Table is a crowning scientific achievement, but it's also a treasure trove of adventure, betrayal, and obsession. These fascinating tales follow every element on the table as they play out their parts in human history, and in the lives of the (frequently) mad scientists who discovered them. THE DISAPPEARING SPOON masterfully fuses science with the classic lore of invention, investigation, and discovery--from the Big Bang through the end of time. *Though solid at room temperature, gallium is a moldable metal that melts at 84 degrees Fahrenheit. A classic science prank is to mold gallium spoons, serve them with tea, and watch guests recoil as their utensils disappear.
The Disappearing Spoon: And Other True Tales of Rivalry, Adventure, and the History of the World from the Periodic Table of the Elements (Young Readers Edition)
by Sam KeanA young readers edition of the New York Times bestseller The Disappearing Spoon, chronicling the extraordinary stories behind one of the greatest scientific tools in existence: the periodic table.Why did Gandhi hate iodine (I, 53)? How did radium (Ra, 88) nearly ruin Marie Curie's reputation? And why did tellurium (Te, 52) lead to the most bizarre gold rush in history?The periodic table is a crowning scientific achievement, but it's also a treasure trove of adventure, greed, betrayal, and obsession. The fascinating tales in The Disappearing Spoon follow elements on the table as they play out their parts in human history, finance, mythology, conflict, the arts, medicine, and the lives of the (frequently) mad scientists who discovered them. Adapted for a middle grade audience, the young readers edition of The Disappearing Spoon offers the material in a simple, easy-to-follow format, with approximately 20 line drawings and sidebars throughout. Students, teachers, and burgeoning science buffs will love learning about the history behind the chemistry.
The Disc and Degenerative Disc Disease: Remove or Regenerate? (New Procedures in Spinal Interventional Neuroradiology)
by Luigi Manfrè Johan Van GoethemThis easy-to-consult guide examines the most advanced techniques in the radiological evaluation of the disc and degenerative disc disease, using conventional, functional, dynamic and advanced imaging. It provides clear information on a range of CT, X-ray, and MRI guided techniques, presents all disc treatments in connection with symptomatic disc herniations, evaluates conservative, chemical (ESI, steroid, Ozone, ethanol gel injections) and physical treatments (coblation, laser, decompressors, endoscopy), and assesses the possibility of repairing and/or regenerating the disc in the context of reversible disc degeneration. Like other books in the Springer series New Procedures in Spinal Interventional Neuroradiology, this practice-oriented volume will fill a significant gap in the literature and meet the need expressed by many specialists (interventional neuroradiologists and radiologists, neurosurgeons, and orthopedists) for a topical and handy guide that specifically illustrates the currently available materials and methods.
The Discourse of Sensibility
by Henry Martyn LloydThis volume reconstructs the body of sensibility and the discourse which constructed it. The discourse of sensibility was deployed very widely throughout the mid- to late-eighteenth century, particularly in France and Britain. To inquire into the body of sensibility is then necessarily to enter into an interdisciplinary space and so to invite the plurality of methodological approaches which this collection exemplifies. The chapters collected here draw together the histories of literature and aesthetics, metaphysics and epistemology, moral theory, medicine, and cultural history. Together, they contribute to four major themes: First, the collection reconstructs various modes by which the sympathetic subject was construed or scripted, including through the theatre, poetry, literature, and medical and philosophical treaties. It secondly draws out those techniques of affective pedagogy which were implied by the medicalisation of the knowing body, and thirdly highlights the manner in which the body of sensibility was constructed as simultaneously particular and universal. Finally, it illustrates the 'centrifugal forces' at play within the discourse, and the anxiety which often accompanied them. At the centre of eighteenth-century thought was a very particular object: the body of sensibility, the Enlightenment's knowing body. The persona of the knowledge-seeker was constructed by drawing together mind and matter, thought and feeling. And so where the Enlightenment thinker is generally associated with reason, truth-telling, and social and political reform, the Enlightenment is also known for its valorisation of emotion. During the period, intellectual pursuits were envisioned as having a distinctly embodied and emotional aspect. The body of 'sensibility' encompassed these apparently disparate strands and was associated with terms including 'sentimental', 'sentiment', 'sense', 'sensation', and 'sympathy'.
The Discoverers
by Daniel J. BoorstinAn original history of man's greatest adventure: his search to discover the world around him. In the compendious history, Boorstin not only traces man's insatiable need to know, but also the obstacles to discovery and the illusion that knowledge can also put in our way. Covering time, the earth and the seas, nature and society, he gathers and analyzes stories of the man's profound quest to understand his world and the cosmos.
The Discoveries: Great Breakthroughs in 20th-Century Science, Including the Original Papers
by Alan LightmanAn extraordinarily accessible, illuminating chronicle of the great moments of scientific discovery in the 20th century, and an exploration into the minds of the remarkable men and women behind them. We know and read the literary masterpieces; how many of us have had the opportunity not only to read but understand the masterpieces of science that describe the very moment of discovery? The last century has seen an explosion of creativity and insight that led to breakthroughs in every field of science: from the theory of relativity to the first quantum model of the atom to the mapping of the structure of DNA, these discoveries profoundly changed how we understand the world and our place in it. Alan Lightman tells the stories of two dozen breakthroughs made by such brilliant scientists as Einstein, Bohr, McClintock and Pauling, among others, drawing on his unique background as a scientist and novelist to reveal the process of scientific discovery at its greatest. He outlines the intellectual and emotional landscape of each discovery, portrays the personalities and human drama of the scientists involved, and explains the significance and impact of the work. Finally, he gives an unprecedented and exhilarating guided tour through each of the original papers.
The Discovery of Chinese Literature (Key Concepts in Chinese Thought and Culture)
by Laiming YuThis book traces the origin and evolvement of two Chinese characters “wenxue”(literature) by using the methods of conceptual history and historical and cultural semantics, and by taking the evolution and changes of the concept of the these two characters and their interpretations in the west as a window, and re-examining the contemporary morphology of concept evolution in the historical context of concept generation and development to discover the historical and cultural connotations hidden behind the characters, so as to embark on a vivid journey to explore the history of literary thought, discipline and culture. The entire book is woven with the concept of “literature” at its core. Following the author's analysis and interpretation, an interlocking and orderly network of description of ancient and modern, Chinese and foreign unfolds. In this context, the chapters are progressive and mutually responsive, forming an organic whole which is connected at the beginning and the end. For those readers who are trying to understand how Chinese “wenxue” evolved from one of the “four disciplines of Confucius” into a modern discipline and concept, this book will provide the most detailed, in-depth, and vivid historical picture.
The Discovery of Global Warming: Revised and Expanded Edition (New histories of science, technology, and medicine #13)
by Spencer R. WeartThe award-winning book is now revised and expanded. In 2001 an international panel of distinguished climate scientists announced that the world was warming at a rate without precedent during at least the last ten millennia, and that warming was caused by the buildup of greenhouse gases from human activity. The story of how scientists reached that conclusion—by way of unexpected twists and turns—was the story Spencer Weart told in The Discovery of Global Warming. Now he brings his award-winning account up to date, revised throughout to reflect the latest science and with a new conclusion that shows how the scientific consensus caught fire among the general world public, and how a new understanding of the human meaning of climate change spurred individuals and governments to action.
The Discovery of God
by Henry KellermanThe debate between theist and atheist is an old one and has recently become a highly publicized one. There are some well known proponents of arguments on both sides. To provide a different perspective this book takes a psychoanalytically based evolutionary view, presenting an entirely original theoretical concept. It introduces an epigenetic component to the discussion of God/no God within the context of evolutionary processes at the point where a thinking brain appears -- a cerebral cortex characteristic of homosapien. Therefore, it joins evolutionary phenomena with psychological realities for survival and safety, for empowerment and the absence of disempowerment. Research is cited to show that such instinctive survival behavior involves several prototypical behavioral categories relevant to all organisms from amoeba to man. Freud, Darwin, Gould, and the major historical figures of the God/no God debate are included throughout, and the point is made that environmental conditions can produce biological effects and this is the essence of the proposed epigenetical context of the debate. Therefore, this volume concerns itself with exploring the question of whether there is a God-gene or whether God is discovered epigentically in a psycho/evolutionary context. In either case, this book does not argue for the existence or non-existence of God. Rather, it introduces a new dimension to the debate -- a psycho/evolutionary one.
The Discovery of Insulin: Twenty-fifth Anniversary Edition
by Michael Bliss“The new edition of this historical masterpiece . . . fleshes out events and personalities through a narrative that remains as stirring and relevant as ever.” —Robert A. Hegele, Western UniversityWhen insulin was discovered in the early 1920s, even jaded professionals marveled at how it brought starved, sometimes comatose diabetics back to life. In the twenty-fifth anniversary edition of a classic, Michael Bliss unearths scientists’ memoirs and confidential appraisals of insulin by members of the Nobel Committee. He also resolves a longstanding controversy about scientific collaboration at its most fractious and fascinating: who ultimately deserves credit for the discovery? Bliss’s life-and-death saga illuminates one of the most important breakthroughs in the history of medicine.“The Discovery of Insulin deserves a place on the bookshelf alongside such eye-openers as James Watson’s The Double Helix.” —Washington Post“The definitive history . . . well written, highly readable.” —London Review of Books“Scrupulously researched and compellingly readable . . . I wholeheartedly recommend it to anyone with an interest in diabetes, medical history, or medical scandal and gossip.” —British Medical Journal“This book reaches well beyond the story of insulin. It is a timeless chronicle on the pursuit of science, as well as the nature of discoveries and the people who make them.” —Jeffrey M. Friedman, Marilyn M. Simpson Professor, The Rockefeller University, and Investigator, Howard Hughes Medical Institute
The Discovery of Isotopes
by Michael ThoennessenThis book describes the exciting discovery of every isotope observed on earth to date, which currently numbers some 3000. The discoveries are arranged in chapters according to the observation techniques or production methods. Each chapter contains tables listing the first authors of the first publication as well as details about the production and detection methods used. At the end, a comprehensive table lists all isotopes sorted by elements. The book is based on individual paragraphs for each isotope, which were published over the last few years as separate articles in the journal "Atomic Data and Nuclear Data Tables". The work re-evaluates all prior assignments judging them with a uniform set of criteria. In addition, the author includes over 100 new isotopes which have been discovered since the articles published. This book is a source of information for researchers as well as enthusiastic laymen alike. From the prepublication review: "The explanations focus on the essentials, which makes the various chapters pleasingly compact. The phrasing is well understandable also for non-experts. This makes the book easy to read, even thrilling. I have to confess that parts of the manuscript I was even reading as an evening lecture in the bed, so exciting was the history of isotope discoveries. " Sigurd Hofmann, Helmholtz Professor at GSI Darmstadt, Germany, and a leading expert in superheavy nuclei
The Discovery of a Visual System - The Honeybee
by Adrian HorridgeThis book is the only account of what honeybees actually see. Bees detect some visual features such as edges and colours, but there is no sign that they reconstruct patterns or put together features to form objects. Bees detect motion but have no perception of what it is that moves, and certainly they do not recognize "things" by their shapes. Yet they clearly see well enough to fly and find food with a minute brain. Bee vision is therefore relevant to the construction of simple artificial visual systems, for example for mobile robots. The surprising conclusion is that bee vision is adapted to the recognition of places, not things. In this volume, Adrian Horridge also sets out the curious and contentious history of how bee vision came to be understood, with an account of a century of neglect of old experimental results, errors of interpretation, sharp disagreements, and failures of the scientific method. The design of the experiments and the methods of making inferences from observations are also critically examined, with the conclusion that scientists are often hesitant, imperfect and misleading, ignore the work of others, and fail to consider alternative explanations. The erratic path to understanding makes interesting reading for anyone with an interest in the workings of science but particularly those researching insect vision and invertebrate sensory systems.
The Discovery of a Visual System - The Honeybee
by Adrian HorridgeThis book is the only account of what honeybees actually see. Bees detect some visual features such as edges and colours, but there is no sign that they reconstruct patterns or put together features to form objects. Bees detect motion but have no perception of what it is that moves, and certainly they do not recognize "things" by their shapes. Yet they clearly see well enough to fly and find food with a minute brain. Bee vision is therefore relevant to the construction of simple artificial visual systems, for example for mobile robots. The surprising conclusion is that bee vision is adapted to the recognition of places, not things. In this volume, Adrian Horridge also sets out the curious and contentious history of how bee vision came to be understood, with an account of a century of neglect of old experimental results, errors of interpretation, sharp disagreements, and failures of the scientific method. The design of the experiments and the methods of making inferences from observations are also critically examined, with the conclusion that scientists are often hesitant, imperfect and misleading, ignore the work of others, and fail to consider alternative explanations. The erratic path to understanding makes interesting reading for anyone with an interest in the workings of science but particularly those researching insect vision and invertebrate sensory systems.
The Discreet Charm of Protein Binding Sites
by Joseph YarivThis book is a passionate account of the scientific breakthroughs that led to the solution of the first protein structures and to the understanding of their function at atomic resolution. The book is divided into self-standing chapters that each deal with a protein or protein family. The subject is presented in a fluid, non-technical style that will engage student and scientists in biochemistry, biophysics, molecular and structure biology and physiology.
The Disease Detectives: Unraveling How Viruses Go Viral
by Kris Hundley University of FloridaThe experts at UF’s Emerging Pathogens Institute make it their mission answering baffling questions such as how is a pig-borne disease transmitted in a Muslim country, what kinds of parasites do Florida ticks carry and how has a cholera strain from Nepal evolved in Haiti? Gatorbytes highlight for the intellectually curious the world of innovative research happening at the University of Florida. Written by professional journalists, Gatorbytes feature the top research and preeminence work being conducted at the University of Florida, written in a way that’s easy to understand.
The Diseasing of America's Children: Exposing the ADHD Fiasco and Empowering Parents to Take Back Control
by John Rosemond Bose RavenelHow parents, teachers, and even professionals are being deceived by the "ADHD Establishment" regarding ADHD and other childhood behavior disorders and the drugs used to treat them. The issue of diagnosing children with behavioral diseases that do not conform to a scientific definition of disease, and then medicating them is a scandal ready to erupt. In The Diseasing of America's Children, popular family psychologist, speaker and best-selling author John Rosemond joins with pediatrician Dr. Bose Ravenel to uncover the fiction and fallacy behind attention-deficit/hyperactivity disorder (ADHD), oppositional defiant disorder (ODD), early-onset biopolar disorder (EOBD), and the drugs prescribed to treat them. Rosemond and Ravenel will: reveal the pseudo-science behind these diagnoses; explain how parents, teachers, and even professionals are deceived; expose the short- and long-term dangers behavioral drugs pose to children; discuss how America's schools are unwittingly feeding the diagnostic beast; reveal the simple, common sense truth behind these behavior problems and give parents a practical program for curing these problems without drugs or dependence on professionals.
The Disorder of Things: Metaphysical Foundations of the Disunity of Science
by John DupreThe great dream of philosophers and scientists for millennia has been to give us a complete account of the order of things. A powerful articulation of such a dream in this century has been found in the idea of a unity of science. With this manifesto, John Dupré systematically attacks the ideal of scientific unity by showing how its underlying assumptions are at odds with the central conclusions of science itself. In its stead, the author gives us a metaphysics much more in keeping with what science tells us about the world. Elegantly written and compellingly argued, this provocative book will be important reading for all philosophers and scholars of science.
The Disordered Cosmos: A Journey into Dark Matter, Spacetime, and Dreams Deferred
by Chanda Prescod-WeinsteinFrom a star theoretical physicist, a journey into the world of particle physics and the cosmos -- and a call for a more just practice of science. In The Disordered Cosmos, Dr. Chanda Prescod-Weinstein shares her love for physics, from the Standard Model of Particle Physics and what lies beyond it, to the physics of melanin in skin, to the latest theories of dark matter -- all with a new spin informed by history, politics, and the wisdom of Star Trek. One of the leading physicists of her generation, Dr. Chanda Prescod-Weinstein is also one of fewer than one hundred Black American women to earn a PhD from a department of physics. Her vision of the cosmos is vibrant, buoyantly non-traditional, and grounded in Black feminist traditions. Prescod-Weinstein urges us to recognize how science, like most fields, is rife with racism, sexism, and other dehumanizing systems. She lays out a bold new approach to science and society that begins with the belief that we all have a fundamental right to know and love the night sky. The Disordered Cosmos dreams into existence a world that allows everyone to experience and understand the wonders of the universe.
The Disordered Mind: What Unusual Brains Tell Us About Ourselves
by Eric R. KandelEric R. Kandel, the winner of the Nobel Prize in Physiology or Medicine for his foundational research into memory storage in the brain, is one of the pioneers of modern brain science. His work continues to shape our understanding of how learning and memory work and to break down age-old barriers between the sciences and the arts.In his seminal new book, The Disordered Mind, Kandel draws on a lifetime of pathbreaking research and the work of many other leading neuroscientists to take us on an unusual tour of the brain. He confronts one of the most difficult questions we face: How does our mind, our individual sense of self, emerge from the physical matter of the brain? The brain’s 86 billion neurons communicate with one another through very precise connections. But sometimes those connections are disrupted. The brain processes that give rise to our mind can become disordered, resulting in diseases such as autism, depression, schizophrenia, Parkinson’s, addiction, and post-traumatic stress disorder. While these disruptions bring great suffering, they can also reveal the mysteries of how the brain produces our most fundamental experiences and capabilities—the very nature of what it means to be human. Studies of autism illuminate the neurological foundations of our social instincts; research into depression offers important insights on emotions and the integrity of the self; and paradigm-shifting work on addiction has led to a new understanding of the relationship between pleasure and willpower.By studying disruptions to typical brain functioning and exploring their potential treatments, we will deepen our understanding of thought, feeling, behavior, memory, and creativity. Only then can we grapple with the big question of how billions of neurons generate consciousness itself.
The Disordered Mind: What Unusual Brains Tell Us About Ourselves
by Eric R. KandelNeurological and psychiatric disorders have long been regarded as fundamentally different, depending on whether they appear to affect the brain or the mind. In reality, the brain and the mind are inseparable. Both types of disorder can affect every aspect of brain function: from perception, action, memory and emotion to empathy, social interaction, attention and consciousness. It is easy to view brain disorders as simply tragic or frightening. However, studying where these functions go wrong provides a window on the workings of the healthy brain, and makes it more likely that scientists and clinicians will be able to develop effective treatments or preventative strategies. As individuals, and as a society, we are also able to better empathise with people with disorders of the mind.Building on his pioneering research, Eric R. Kandel illustrates how breakthrough studies of brain disruptions can deepen our understanding of thought, feeling, behaviour, memory and creativity, and perhaps in the future will transform medical care and lead to the development of a unified theory of mind.