Simon LeVay – författare

What causes a child to grow up gay or straight? In this book, neuroscientist Simon LeVay summarizes a wealth of scientific evidence that points to one inescapable conclusion: Sexual orientation results primarily from an interaction between genes, sex hormones, and the cells of the developing body and brain.LeVay helped create this field in 1991 with a much-publicized study in Science, where he reported on a difference in the brain structure between gay and straight men. Since then, an entire scientific discipline has sprung up around the quest for a biological explanation of sexual orientation. In this book, LeVay provides a clear explanation of where the science stands today, taking the reader on a whirlwind tour of laboratories that specialize in genetics, endocrinology, neuroscience, cognitive psychology, evolutionary psychology, and family demographics. He describes, for instance, how researchers have manipulated the sex hormone levels of animals during development, causing them to mate preferentially with animals of their own gender. LeVay also reports on the prevalence of homosexual behavior among wild animals, ranging from Graylag geese to the Bonobo chimpanzee. In this revised edition LeVay broadens his horizons. He adds a new chapter on bisexuality, reviews some uncommon forms of sexuality such as asexuality and pedophilia, and considers whether there could be a biological basis for subtypes of gay people such as "butch" and "femme" lesbians.Although many details remain unresolved, the general conclusion is quite clear: A person's sexual orientation arises in large part from biological processes that are already underway before birth.

It is only recently that advances in chemistry, physics, and biology and in their application to space and the space sciences, have provided scientists with the tools to make accurate and well-informed predictions about the possibility of life on other planets. In this book, the authors summarize and present the scientific search for life in the universe, and the current level of scientific understanding of how life begins, grows, and becomes intelligent in our Solar System and beyond. This engaging book promises to appeal not only to the general reader but to scientists as well, many of whom strive to acquire an informed perspective on the search for extraterrestrial life in fields not their own.

The discovery of life on other planets would be perhaps the most momentous revelation in human history, more disorienting and more profound than either the Copernican or Darwinian revolutions, which knocked the earth from the centre of the universe and humankind from its position of lofty self-regard. In Here Be Dragons, astronomer David Koerner and neurobiologist Simon LeVay offer a scientifically compelling and colourful account of the search for life beyond Earth.The authors survey the work of biologists, cosmologists, computer theorists, NASA engineers, SETI researchers, roboticists, and UFO enthusiasts and debunkers as they attempt to answer the greatest remaining question facing humankind: Are we alone? From their 'safe haven of scepticism' the authors venture into the 'rough seas of speculation', where theory and evidence run the gamut from hard science to hocus pocus.Arguing that the universe is spectacularly suited for the evolution of living creatures, Koerner and LeVay give us ringside seats at the great debates of Big Science. The contentious arguments about what really happens in evolution, the acrimonious UFO controversy, and the debate over intelligence versus artificial intelligence shed new light on the wildly divergent claims about the universe and life's place in it. The authors argue that while no direct evidence of extraterrestrial life yet exists, habitats and chemical building blocks for life abound in the universe. A wealth of new astonomical techniques and space missions may provide this evidence early in the next century. Lucidly written and scientifically rigorous, Here Be Dragons presents everything we know thus far about the emergence of intelligent life here on Earth, and perhaps, beyond.

An evidence-based, accessible introduction to the study of sexuality and the diverse ways in which it brings joy and challenges to our lives. Discovering Human Sexuality has established itself as a popular and widely praised text that respects diversity both in the sexual world and among the students who read it. The backgrounds of the authors--in psychology, sociology, teaching, and writing--have made possible a text that is multidisciplinary, authoritative, sex-positive, and a delight to read.

Sex, after hunger, may be the most powerful motivating force in our lives. It drives us to seek intimate contact with others and to form relationships that may be fleeting or lifelong, blissful or troubled. Yet many mysteries surround sex and sexuality: Why don’t we reproduce by virgin birth? Why does so much of our sexual behavior have nothing to do with reproduction? Why isn’t everyone heterosexual? How does the brain create sexual arousal? How do sexual kinks develop? Is porn harmful? What is the relationship between sex and love?In Attraction, Love, Sex, the renowned scholar Simon LeVay introduces readers to a memorable cast of researchers trying to answer these questions and many more. A biologist dredges a New Zealand lake for asexual mud snails. Psychologists measure whether eating a good meal changes a man’s idea of female beauty. Physiologists probe orifices with miniature toilet plungers and place lovers in brain scanners. Geneticists reconstruct the sex crimes of Genghis Khan. Neuroscientists create mice whose sexual behavior can be switched on and off. A zoologist traps and releases 260,000 voles and launches a new science of love.LeVay distills vast expertise on the biology and psychology of sex into an engaging and easy-to-understand survey with scientific acumen, a critical eye, and a sense of humor. This book reveals how scientists are unraveling the secrets of sex and, in the process, shattering many traditional ideas and prejudices.

Sex, after hunger, may be the most powerful motivating force in our lives. It drives us to seek intimate contact with others and to form relationships that may be fleeting or lifelong, blissful or troubled. Yet many mysteries surround sex and sexuality: Why don’t we reproduce by virgin birth? Why does so much of our sexual behavior have nothing to do with reproduction? Why isn’t everyone heterosexual? How does the brain create sexual arousal? How do sexual kinks develop? Is porn harmful? What is the relationship between sex and love?In Attraction, Love, Sex, the renowned scholar Simon LeVay introduces readers to a memorable cast of researchers trying to answer these questions and many more. A biologist dredges a New Zealand lake for asexual mud snails. Psychologists measure whether eating a good meal changes a man’s idea of female beauty. Physiologists probe orifices with miniature toilet plungers and place lovers in brain scanners. Geneticists reconstruct the sex crimes of Genghis Khan. Neuroscientists create mice whose sexual behavior can be switched on and off. A zoologist traps and releases 260,000 voles and launches a new science of love.LeVay distills vast expertise on the biology and psychology of sex into an engaging and easy-to-understand survey with scientific acumen, a critical eye, and a sense of humor. This book reveals how scientists are unraveling the secrets of sex and, in the process, shattering many traditional ideas and prejudices.

Published by Sinauer Associates, an imprint of Oxford University Press. In this textbook, Simon LeVay and Janice Baldwin aim to help students understand the diversity of human sexual expression as well as the diversity of perspectives from which sexuality can be studied. Well known for its high-quality presentation of biological aspects of sexuality, Human Sexuality, Fourth Edition, devotes rich coverage to the insights gained from cognitive science, social psychology, sociology, feminism, and cross-cultural studies, along with both moral and political discourse on sexual themes.The fourth edition provides up-to-date coverage of all topics, ranging from gay marriage in New York to the latest developments in contraceptive technology and exciting findings on pre-exposure prophylaxis against HIV. Still the leader in terms of its biological coverage, the fourth edition also has expanded coverage of many other issues, ranging from sex-therapy exercises to learning theories of gender and paraphilias.