Touch and Blindness


Book Description

Research on touch and blindness has undergone rapid transformation in recent years, with dramatic developments in technology designed to provide assistance to those who are blind, and advancements in robotics that demand haptic interfaces. Touch and Blindness approaches the study of the topic from the perspectives of psychological methodology and the most sophisticated, state-of-the-art techniques in neuroscience. This book, edited by well-known leaders in the field, is derived from the discussions presented by speakers at a conference held in 2002, and presents current research in the field. The book is arranged in a logical, disciplinary fashion, first discussing touch and blindness from a psychological perspective, followed by an examination from the perspective of neuroscience. Some specific topics include: *processing spatial information from touch and movement; *form, projection, and pictures for the blind; *neural substrate and visual and tactile object representations; and *the role of visual cortex in tactile processing. Touch and Blindness is ideal for researchers in psychology and neuroscience, medicine, and special education.




Discovering the Brain


Book Description

The brain ... There is no other part of the human anatomy that is so intriguing. How does it develop and function and why does it sometimes, tragically, degenerate? The answers are complex. In Discovering the Brain, science writer Sandra Ackerman cuts through the complexity to bring this vital topic to the public. The 1990s were declared the "Decade of the Brain" by former President Bush, and the neuroscience community responded with a host of new investigations and conferences. Discovering the Brain is based on the Institute of Medicine conference, Decade of the Brain: Frontiers in Neuroscience and Brain Research. Discovering the Brain is a "field guide" to the brainâ€"an easy-to-read discussion of the brain's physical structure and where functions such as language and music appreciation lie. Ackerman examines: How electrical and chemical signals are conveyed in the brain. The mechanisms by which we see, hear, think, and pay attentionâ€"and how a "gut feeling" actually originates in the brain. Learning and memory retention, including parallels to computer memory and what they might tell us about our own mental capacity. Development of the brain throughout the life span, with a look at the aging brain. Ackerman provides an enlightening chapter on the connection between the brain's physical condition and various mental disorders and notes what progress can realistically be made toward the prevention and treatment of stroke and other ailments. Finally, she explores the potential for major advances during the "Decade of the Brain," with a look at medical imaging techniquesâ€"what various technologies can and cannot tell usâ€"and how the public and private sectors can contribute to continued advances in neuroscience. This highly readable volume will provide the public and policymakersâ€"and many scientists as wellâ€"with a helpful guide to understanding the many discoveries that are sure to be announced throughout the "Decade of the Brain."




Touch and Blindness


Book Description

Touch and Blindness approaches the study of this topic from the perspectives of psychological methodology and the most sophisticated, state-of-the-art techniques in neuroscience. This book, edited by well-known leaders in the field, is derived fro




In Touch with the Future


Book Description

This book explores the science of touch. It brings together the latest findings from cognitive neuroscience about the processing of tactile information in humans. The book provides a comprehensive overview of scientific knowledge regarding themes such as tactile memory, tactile awareness (consciousness) and tactile attention.




Psychology of Touch and Blindness


Book Description

This book reviews the considerable body of research on the touch skills of blind people. Emphasizing cognitive and neuroscientific approaches, it encompasses a wide-ranging discussion of the theoretical issues in the field of touch perception and blindness, and also speaks to the basic nature of spatial imagery and the importance and necessity -- or lack thereof -- of specific visual sensory experience for the acquisition of knowledge about space, spatial layout, and picture perception. The book will appeal to researchers and professionals with an interest in touch and blindness and a wider audience of cognitive psychologists and cognitive neuroscientists working in the field of perception.




Blind Vision


Book Description

An investigation of the effects of blindness and other types of visual deficit on cognitive abilities. Can a blind person see? The very idea seems paradoxical. And yet, if we conceive of "seeing" as the ability to generate internal mental representations that may contain visual details, the idea of blind vision becomes a concept subject to investigation. In this book, Zaira Cattaneo and Tomaso Vecchi examine the effects of blindness and other types of visual deficit on the development and functioning of the human cognitive system. Drawing on behavioral and neurophysiological data, Cattaneo and Vecchi analyze research on mental imagery, spatial cognition, and compensatory mechanisms at the sensorial, cognitive, and cortical levels in individuals with complete or profound visual impairment. They find that our brain does not need our eyes to "see." Cattaneo and Vecchi address critical questions of broad importance: the relationship of visual perception to imagery and working memory and the extent to which mental imagery depends on normal vision; the functional and neural relationships between vision and the other senses; the specific aspects of the visual experience that are crucial to cognitive development or specific cognitive mechanisms; and the extraordinary plasticity of the brain—as illustrated by the way that, in the blind, the visual cortex may be reorganized to support other perceptual or cognitive funtions. In the absence of vision, the other senses work as functional substitutes and are often improved. With Blind Vision, Cattaneo and Vecchi take on the "tyranny of the visual," pointing to the importance of the other senses in cognition.




Touching a Nerve: Our Brains, Our Selves


Book Description

A trailblazing philosopher’s exploration of the latest brain science—and its ethical and practical implications. What happens when we accept that everything we feel and think stems not from an immaterial spirit but from electrical and chemical activity in our brains? In this thought-provoking narrative—drawn from professional expertise as well as personal life experiences—trailblazing neurophilosopher Patricia S. Churchland grounds the philosophy of mind in the essential ingredients of biology. She reflects with humor on how she came to harmonize science and philosophy, the mind and the brain, abstract ideals and daily life. Offering lucid explanations of the neural workings that underlie identity, she reveals how the latest research into consciousness, memory, and free will can help us reexamine enduring philosophical, ethical, and spiritual questions: What shapes our personalities? How do we account for near-death experiences? How do we make decisions? And why do we feel empathy for others? Recent scientific discoveries also provide insights into a fascinating range of real-world dilemmas—for example, whether an adolescent can be held responsible for his actions and whether a patient in a coma can be considered a self. Churchland appreciates that the brain-based understanding of the mind can unnerve even our greatest thinkers. At a conference she attended, a prominent philosopher cried out, “I hate the brain; I hate the brain!” But as Churchland shows, he need not feel this way. Accepting that our brains are the basis of who we are liberates us from the shackles of superstition. It allows us to take ourselves seriously as a product of evolved mechanisms, past experiences, and social influences. And it gives us hope that we can fix some grievous conditions, and when we cannot, we can at least understand them with compassion.




Touch


Book Description

The "New York Times" bestselling author of "The Compass of Pleasure" examines how our sense of touch is interconnected with our emotions Dual-function receptors in our skin make mint feel cool and chili peppers hot.




Brain, Vision, Memory


Book Description

In these engaging tales describing the growth of knowledge about the brain—from the early Egyptians and Greeks to the Dark Ages and the Renaissance to the present time—Gross attempts to answer the question of how the discipline of neuroscience evolved into its modern incarnation through the twists and turns of history. Charles G. Gross is an experimental neuroscientist who specializes in brain mechanisms in vision. He is also fascinated by the history of his field. In these tales describing the growth of knowledge about the brain from the early Egyptians and Greeks to the present time, he attempts to answer the question of how the discipline of neuroscience evolved into its modern incarnation through the twists and turns of history. The first essay tells the story of the visual cortex, from the first written mention of the brain by the Egyptians, to the philosophical and physiological studies by the Greeks, to the Dark Ages and the Renaissance, and finally, to the modern work of Hubel and Wiesel. The second essay focuses on Leonardo da Vinci's beautiful anatomical work on the brain and the eye: was Leonardo drawing the body observed, the body remembered, the body read about, or his own dissections? The third essay derives from the question of whether there can be a solely theoretical biology or biologist; it highlights the work of Emanuel Swedenborg, the eighteenth-century Swedish mystic who was two hundred years ahead of his time. The fourth essay entails a mystery: how did the largely ignored brain structure called the "hippocampus minor" come to be, and why was it so important in the controversies that swirled about Darwin's theories? The final essay describes the discovery of the visual functions of the temporal and parietal lobes. The author traces both developments to nineteenth-century observations of the effect of temporal and parietal lesions in monkeys—observations that were forgotten and subsequently rediscovered.




Understanding Blindness


Book Description

Originally published in 1989, much was known about blindness, but the field was divided into specialties. Experts in the different areas were widely dispersed among university departments, rehabilitation agencies, and school systems, with the result that people in one specialty area often knew little about developments in other areas. It was hoped that this work would be useful in reducing that isolation, by presenting, within a single volume, basic information derived from different approaches to the subject of blindness. Individuals already familiar with material in some of the chapters could gain added perspective on the field as a whole by reading about other aspects of blindness outside their specialty area.