Written for both the casual reader and the science buff hungry for new information, The Vision Revolution is a resource that dispels commonly believed perceptions about sight and offers answers drawn from the field’s most recent research.Changizi focuses on four “why” questions:1. Why do we see in color?2. Why do our eyes face forward?3. Why do we see illusions?4. Why does reading come so naturally to us?Why Do We See in Color?It was commonly believed that color vision evolved to help our primitive ancestors identify ripe fruit. Changizi says we should look closer to home: ourselves. Human color vision evolved to give us greater insights into the mental states and health of other people. People who can see color changes in skin have an advantage over their color-blind counterparts; they can see when people are blushing with embarrassment, purple-faced with exertion or the reddening of rashes. Changizi’s research reveals that the cones in our eyes that allow us to see color are exquisitely designed exactly for seeing color changes in the skin. And it’s no coincidence that the primates with color vision are the ones with bare spots on their faces and other body parts; Changizi shows that the development of color vision in higher primates closely parallels the loss of facial hair, culminating in the near hairlessness and highly developed color vision of humans.Why Do Our Eyes Face Forward?Forward-facing eyes set us apart from most mammals, and there is much dispute as to why we have them. While some speculate that we evolved this feature to give us depth perception available through stereo vision, this type of vision only allows us to see short distances, and we already have other mechanisms that help us to estimate distance. Changizi’s research shows that with two forward-facing eyes, primates and humans have an x-ray ability. Specifically, we’re able to see through the cluttered leaves of the forest environment in which we evolved. This feature helps primates see their targets in a crowded, encroached environment. To see how this works, hold a finger in front of your eyes. You’ll find that you’re able to look “through” it, at what is beyond your finger. One of the most amazing feats of two forward-facing eyes? Our views aren’t blocked by our noses, beaks, etc.Why Do We See Illusions?We evolved to see moving objects, not where they are, but where they are going to be. Without this ability, we couldn’t catch a ball because the brain’s ability to process visual information isn’t fast enough to allow us to put our hands in the right place to intersect for a rapidly approaching baseball. “If our brains simply created a perception of the way the world was at the time light hit the eye, then by the time that perception was elicited—which takes about a tenth of a second for the brain to do—time would have marched on, and the perception would be of the recent past,” Changizi explains. Simply put, illusions occur when our brain is tricked into thinking that a stationary two-dimensional picture has an element that is moving. Our brains project the “moving” element into the future and, as a result, we don’t see what’s on the page, but what our brain thinks will be the case a fraction of a second into the future.Why Does Reading Come So Naturally to Us?We can read faster than we can hear, which is odd, considering that reading is relatively recent, and we’ve evolved to process speech for millions of years. Changizi’s research reveals that language has been carefully designed to tap in to elements of the visual processing center that have evolved for tens of millions of years. Visual signs of all languages are shaped like objects in nature, Changizi says, because we have evolved to see nature easily. “People have noticed letters in nature for some time, and there are artists who have a spent a lot of time photographing Latin letters in natural scenes or on butterfly wings,” Changizi says. “For example, if you look at an upper corner of the room you are in, you will see three contours meeting at a point, making a shape close to that of a ‘Y.’“ The Vision Revolution expands upon how our ancestors found the shapes of Latin letters and delves into how visual signs can have similar shapes even though their inspirations come from very different environments.In addition to these four areas, The Vision Revolution explores other phenomena such as cyclopses, peeking and many more you hadn’t even thought to wonder about. Changizi shows how deeply involved these evolutionary aspects of our vision are in why we see the way we do—and what the future holds for us.“…to understand how culture interacts with vision, one must understand not just the eye’s design, but the actual mechanisms we have evolved,” Changizi says, “for culture can tap in to both the designed responses of our brains and the unintended responses.”The Vision Revolution is a book that finally gives attention to what before has been largely neglected by other works on human vision—a book that looks at the “why.”

    She introduces you to an African gray parrot named Alex, a bonobo named Kanzi, and a border collie named Betsy. Each of these animals tells us something interesting about the way they perceive and manipulate their world. The article also looks at what scientists are learning about the intelligence of dolphins and crows, beyond mere communication.   In “Almost Human,” Mary Roach takes us to the savannahs of Senegal to meet a group of 34 chimpanzees, whose behavior and social structures have given scientists some important clues about the nature of their communication and intelligence.   In “The Genius of Swarms,” Peter Miller looks at the collective behavior of ants, bees, and other insects for what they can tell us about social organization and how sometimes intelligence lies outside of the individual brain. This article served as the basis for his book, The Smart Swarm: How Understanding Flocks, Schools, and Colonies Can Make Us Better at Communicating, Decision Making, and Getting Things Done.

    H. Freeman and Company.  Visit the  Life, Eighth Edition preview site.  LIFE HAS EVOLVED. . . from its original publication to this dramatically revitalized Eighth Edition. LIFE has always shown students how biology works, offering an engaging and coherent presentation of the fundamentals of biology by describing the landmark experiments that revealed them. This edition builds on those strengths and introduces several innovations.As with previous editions, the Eighth Edition will also be available in three paperback volumes:  • Volume I: The Cell and Heredity, Chapters 1-20  • Volume II: Evolution, Diversity and Ecology, Chapters 1, 21-33, 52-57  • Volume III: Plants and Animals, Chapters 1, 34-51

    Its clear, user-friendly descriptions of the genetics and neuroscience behind the disorder is paired with first person descriptions and personal narratives of what biological differences mean to sufferers. Author Carrie Arnold, a trained scientist, science writer, and past sufferer of anorexia, speaks with clinicians, researchers, parents, other family members, and sufferers about the factors that make one vulnerable to anorexia, the neurochemistry behind the call of starvation, and why it's so hard to leave anorexia behind. She also addresses: - How environment is still important and influences behaviors- The characteristics of people at high risk for developing anorexia nervosa- Why anorexics find starvation "rewarding"- Why denial is such a salient feature, and how sufferers can overcome itCarrie also includes interviews with key figures in the field who explain their work and how it contributes to our understanding of anorexia. Long thought to be a psychosocial disease of fickle teens, this book alters the way anorexia is understood and treated and gives patients, their doctors, and their family members hope.

    However, in a country of more than 325 million people, addressing everyone's issues is challenging. How can we effect beneficial change for everyone so we all can thrive? What is the great equalizer?In this book, Daniel E. Dawes argues that political determinants of health create the social drivers--including poor environmental conditions, inadequate transportation, unsafe neighborhoods, and lack of healthy food options--that affect all other dynamics of health. By understanding these determinants, their origins, and their impact on the equitable distribution of opportunities and resources, we will be better equipped to develop and implement actionable solutions to close the health gap.Dawes draws on his firsthand experience helping to shape major federal policies, including the Affordable Care Act, to describe the history of efforts to address the political determinants that have resulted in health inequities. Taking us further upstream to the underlying source of the causes of inequities, Dawes examines the political decisions that lead to our social conditions, makes the social determinants of health more accessible, and provides a playbook for how we can address them effectively. A thought-provoking and evocative account that considers both the policies we think of as health policy and those that we don't, The Political Determinants of Health provides a novel, multidisciplinary framework for addressing the systemic barriers preventing the United States from becoming the healthiest nation in the world.

    A perfect fit for a lab coat pocket, this book is commonly used as a quick review prior to surgical rounds as well as for board review.Purchasers of this edition will get both the print book and access to MP3 audio files of the entire text. All Q&A material will also be posted online in the form of electronic flashcards for self-quizzing.

    Today, says Dale Purves, the dominant research agenda may have taken us as far as it can--and neuroscientists may be approaching a paradigm shift. In this highly personal book, Purves reveals how we got to this point and offers his notion of where neuroscience may be headed next. Purves guides you through a half-century of the most influential ideas in neuroscience and introduces the extraordinary scientists and physicians who created and tested them. Purves offers a critical assessment of the paths that neuroscience research has taken, their successes and their limitations, and then introduces an alternative approach for thinking about brains. Building on new research on visual perception, he shows why common ideas about brain networks can't be right and uncovers the factors that determine our subjective experience. The resulting insights offer a deeper understanding of what it means to be human. - Why we need a better conception of what brains are trying to do and how they do it Approaches to understanding the brain over the past several decades may be at an impasse - The surprising lessons that can be learned from what we see How complex neural processes owe more to trial-and-error experience than to logical principles - Brains--and the people who think about them Meet some of the extraordinary individuals who've shaped neuroscience - The -ghost in the machine- problem The ideas presented further undermine the concept of free will

    With a look at diet in relation to nutrition, this Very Short Introduction provides an overview of the biochemistry of nutrition and the health risks associated with poor nutrition- including obesity and types of food allergies. It provides an essential guide to effectively understand the principles of, and necessary reasons for, a healthy diet.ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

    Two ends of the same spectrum. And sometimes the only person standing between is a tired, overworked resident with personal problems of her own.Welcome to the world of Catching Babies. In the halls of a busy metropolitan teaching hospital, a group of OB/GYN doctors complete their residencies and embark on ambitious careers, all while trying to hold their lives together at the seams. Jay is running from a life he’s tried to leave behind, while Katie sacrifices everything she has to serve an endless parade of needy patients. Anna is out trying to save the world, while Tracy is trying to save twins dying in utero. Based on true stories from delivery rooms and labor decks, Catching Babies spins the doctors’ stories into a gripping mosaic of the obsessions, the anxieties, and the heroism of doctors who have chosen to preside over life’s greatest medical drama—high-risk childbirth.

    Every day, we break our fast. Hunger explores the range of this primal experience. Sharman Apt Russell, the highly acclaimed author of Anatomy of a Rose and An Obsession with Butterflies, here takes us on a tour of hunger, from eighteen hours without food to thirty-six hours to seven days and beyond. What Russell finds-both in our bodies and in cultures around the world-is extraordinary. It is a biological process that transcends nature to shape the very of fabric of societies. In a fascinating survey of centuries of thought on hunger's unique power, she discovers an ability to adapt to it that is nothing short of miraculous. From the fasting saints of the early Christian church to activists like Mahatma Gandhi, generations have used hunger to make spiritual and political statements. Russell highlights these remarkable cases where hunger can inspire and even heal, but she also addresses the devastating impact of starvation on cultures around the world today. Written with consummate skill, a compassionate heart, and stocked with facts, figures, and fascinating lore, Hunger is an inspiring window on history and the human spirit.

    It is made from flesh and bone. It eats and breathes and poops. It was once a billionaire named Darren Oscarson who underwent years of cosmetic surgery to be transformed into a human exercise bike so that he could live out his deepest sexual fantasy. Now Tori is forced to ride him, use him as a normal piece of exercise equipment, no matter how grotesque his appearance. Set in a health food dystopia, "Exerice Bike" is an absurd horror tale of domination and submission, power and obedience, desire and desperation, from Wonderland Book Award winner Carlton Mellick III.

    But as early as August 2015, doctors in northeast Brazil began to notice a trend: many mothers who had recently experienced symptoms of the Zika virus were giving birth to babies with microcephaly, a serious disorder characterized by unusually small heads and brain damage.By early 2016, Zika was making headlines as evidence mounted—and eventually confirmed—that microcephaly is caused by the virus, which can be contracted through mosquito bites or sexually transmitted.The first death on American soil, in February 2016, was confirmed in Puerto Rico in April. The first case of microcephaly in Puerto Rico was confirmed on May 13, 2016. The virus has been known to be transmitted by the Aedes aegypti or Yellow Fever mosquito, but now Aedes albopictus, the Asian Tiger mosquito, has been found to carry it as well, which means it might affect regions as far north as New England and the Great Lakes. Right now, at least 298 million people in the Americas live in areas “conducive to Zika transmission,” according to a recent study. Over the next year, more than 5 million babies will be born.In Zika: The Emerging Epidemic, Donald G. McNeil Jr. sets the facts straight in a fascinating exploration of Zika’s origins, how it’s spreading, the race for a cure, and what we can do to protect ourselves now.

    We get cancer because we can't avoid it—it's a bug in the system of life itself.Cancer exists in nearly every animal and has afflicted humans as long as our species has walked the earth. In Rebel Cell: Cancer, Evolution, and the New Science of Life's Oldest Betrayal, Kat Arney reveals the secrets of our most formidable medical enemy, most notably the fact that it isn't so much a foreign invader as a double agent: cancer is hardwired into the fundamental processes of life. New evidence shows that this disease is the result of the same evolutionary changes that allowed us to thrive. Evolution helped us outsmart our environment, and it helps cancer outsmart its environment as well—alas, that environment is us.Explaining why "everything we know about cancer is wrong," Arney, a geneticist and award-winning science writer, guides readers with her trademark wit and clarity through the latest research into the cellular mavericks that rebel against the rigid biological "society" of the body and make a leap towards anarchy.We need to be a lot smarter to defeat such a wily foe—smarter even than Darwin himself. In this new world, where we know that every cancer is unique and can evolve its way out of trouble, the old models of treatment have reached their limits. But we are starting to decipher cancer's secret evolutionary playbook, mapping the landscapes in which these rogue cells survive, thrive, or die, and using this knowledge to predict and confound cancer's next move.Rebel Cell is a story about life and death, hope and hubris, nature and nurture. It's about a new way of thinking about what this disease really is and the role it plays in human life. Above all, it's a story about where cancer came from, where it's going, and how we can stop it.

    This is a disturbing, well-researched wake-up call for improving the current system of drug supply and manufacturing.Several decades ago, penicillin, vitamin C, and many other prescription and over-the-counter products were manufactured in the United States. But with the rise of globalization, antibiotics, antidepressants, birth control pills, blood pressure medicines, cancer drugs, among many others are made in China and sold in the United States. China's biggest impact on the US drug supply is making essential ingredients for thousands of medicines found in American homes and used in hospital intensive care units and operating rooms. The authors convincingly argue that there are at least two major problems with this scenario. First, it is inherently risky for the United States to become dependent on any one country as a source for vital medicines, especially given the uncertainties of geopolitics. For example, if an altercation in the South China Sea causes military personnel to be wounded, doctors may rely upon medicines with essential ingredients made by the adversary. Second, lapses in safety standards and quality control in Chinese manufacturing are a risk. Citing the concerns of FDA officials and insiders within the pharmaceutical industry, the authors document incidents of illness and death caused by contaminated medications that prompted reform. This probing book examines the implications of our reliance on China on the quality and availability of vital medicines.