Left Hemisphere

As the crisis of capitalism unfolds, the need for alternatives is felt ever more intensely. The struggle between radical movements and the forces of reaction will be merciless. A crucial battlefield, where the outcome of the crisis will in part be decided, is that of theory. Over the last twenty-five years, radical intellectuals across the world have produced important and innovative ideas. The endeavour to transform the world without falling into the catastrophic traps of the past has been a common element uniting these new approaches. This book – aimed at both the general reader and the specialist – offers the first global cartography of the expanding intellectual field of critical contemporary thought. More than thirty authors and intellectual currents of every continent are presented in a clear and succinct manner. A history of critical thought in the twentieth and twenty-first centuries is also provided, helping situate current thinkers in a broader historical and sociological perspective.

A new edition of the bestselling classic – published with a special introduction to mark its 10th anniversary This pioneering account sets out to understand the structure of the human brain – the place where mind meets matter. Until recently, the left hemisphere of our brain has been seen as the ‘rational’ side, the superior partner to the right. But is this distinction true? Drawing on a vast body of experimental research, Iain McGilchrist argues while our left brain makes for a wonderful servant, it is a very poor master. As he shows, it is the right side which is the more reliable and insightful. Without it, our world would be mechanistic – stripped of depth, colour and value.

The God of the Left Hemisphere explores the remarkable connections between the activities and functions of the human brain that writer William Blake termed 'Urizen' and the powerful complex of rationalising and ordering processes which modern neuroscience identifies as 'left hemisphere' brain activity. The book argues that Blake's profound understanding of the human brain is finding surprising corroboration in recent neuroscientific discoveries, such as those of the influential Harvard neuro-anatomist Jill Bolte Taylor, and it explores Blake's provocative supposition that the emergence of these rationalising, law-making, and 'limiting' activities within the human brain has been recorded in the earliest Creation texts, such as the Hebrew Bible, Plato's Timaeus, and the Norse sagas. Blake's prescient insight into the nature and origins of this dominant force within the brain allows him to radically reinterpret the psychological basis of the entity usually referred to in these texts as 'God'. The book draws in particular on the work of Bolte Taylor, whose study in this area is having a profound impact on how we understand mental activity and processes.

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."

Understanding how right-brain and left-brain differences influence our habits, thoughts, and actions. Human behaviour is lopsided. When cradling a newborn child, most of us cradle the infant to the left. When posing for a portrait, we tend to put our left cheek forward. When kissing a lover, we usually tilt our head to the right. Why is our behaviour so lopsided and what does this teach us about our brains? How have humans instinctively used this information to make our images more attractive and impactful? Can knowing how left-brain right-brain differences shape our opinions, tendencies, and attitudes help us make better choices in art, architecture, advertising, or even athletics? Side Effects delves into how lateral biases in our brains influence everyday behaviour and how being aware of these biases can be to our advantage.

Does being left-handed make a person different in any way that matters? Since the late Stone Age, approximately 10 percent of humans have been left-handed, yet for most of human history left-handedness has been stigmatized. In On the Other Hand, Howard I. Kushner traces the impact of left-handedness on human cognition, behavior, culture, and health. A left-hander himself, Kushner has long been interested in the meanings associated with left-handedness, and ultimately with whether hand preference can even be defined in a significant way. As he explores the medical and cultural history of left-handedness, Kushner describes the associated taboos, rituals, and stigma from around the globe. The words “left” and “left hand” have negative connotations in all languages, and left-handers have even historically been viewed as disabled. In this comprehensive history of left-handedness, Kushner asks why left-handedness exists. He examines the relationship—if any—between handedness, linguistics, and learning disabilities, reveals how toleration of left-handedness serves as a barometer of wider cultural toleration and permissiveness, and wonders why the reported number of left-handers is significantly lower in Asia and Africa than in the West. Written in a lively style that mixes personal biography with scholarly research, On the Other Hand tells a comprehensive story about the science, traditions, and prejudices surrounding left-handedness.

This book explores the nature of the control of language processing by the hemispheres of the neocortex. The author expounds a novel hypothesis, “The Focusing Hypothesis”, which holds that language processing in the brain is achieved through analytic and holistic systems, the former through left and the latter through right hemisphere processing. This hypothesis differs from current thinking in so far as it proposes that the involvement of the two systems (and two hemispheres) depends on the strategy selected by the speaker and that the engagement by one hemisphere over another will depend upon the communicative intent of the speaker and the propositionality of the utterance under production.Throughout the book there are useful and important discussions on such topics as the value of laboratory-based psycholinguistic experiments — given their tendency to encourage a “metalinguistic” strategy on the part of subjects, the nature of propositionality in language and brain and the difficulties of testing this hypothesis given the research approaches currently available.The Focusing Hypothesis is tested by comprehensive review of the existing experimental psycholinguistic, neuropsychological and neurophysiological literature, and a range of predictions which follow from the hypothesis are detailed.