What Causes Sexual Orientation Genetics Biology Psychology

The debate over "nature versus nature" continues over the causes of homosexuality. Is there a gay gene? Is there something about the way a child is raised that can "turn" her gay? Or is being gay simply a "choice"? Taking a look at the major genetic, biological, and psychological theories of the origins of homosexuality, this book asks questions about gender, gender identity, and sexual orientation that are at the center of gay people's sense of identity and their struggle for civil rights and acceptance by society. While for centuries homosexuality was considered a mental illness, a moral failure, or a biological disorder, gay people in the twenty-first century have the evidence of scientific research and their authentic experiences of happy and fulfilling lives to support the pride and sense of community that is their rightful place in the modern world.

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. 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.

Genetic, hormonal, neurological, and other biological factors need to be taken into account to fully understand sexual orientation. This work represents the latest research and theory on causes of variation in sexual orientation. It looks at sexual orientation as a cross-species phenomenon with numerous determining factors. This work is a collection of chapters by some of the leading researchers in the scientific study of sexual orientation. The theory that many genetic, hormonal, neurological, and other biological factors need to be taken into account to fully understand sexual orientation is espoused in this book. It presents much of the latest research on the causes of variation in sexual orientation and related phenomena. It views sexual orientation as a cross-species phenomenon with both biological and environmental determinants.

This fascinating new book explores the myriad aspects of biological theories of sexual preference. Sex, Cells, and Same-Sex Desire describes, reviews, and questions recent biological research on sexual preference from the point of view of knowledgeable scientists and of scholars in the social sciences and humanities representing the emerging field of gay studies. The issues involved have a vibrant history, are wide-ranging, and remain the objects of much controversy. This book demystifies biological research on sexual preference and makes it accessible to readers unfamiliar with biological and medical research. Sex, Cells, and Same-Sex Desire is divided into several sections, each of which is introduced by an explanation of key concepts and terms found in that section. The book begins with a discussion of the history of biological theories and sociocultural concepts of gender and sexuality. The next 3 sections explore specialized areas of biological science and related issues: genetics and evaluation, hormones and the endocrine system, and brain physiology and structure. A final section discusses social stigma, science, and medicine. A glossary of terms used by the authors is included, so readers may look up those that may be unfamiliar.

Front-page headlines last July reported the discovery of a gene marker for male homosexuality. Now the scientist who made the discovery describes his history-making research and the far-reaching implications of this first genetic link to behavior.

An investigation of the biological origins of sexual orientation examines the latest breakthroughs in the fields of neurobiology, endocrinology, and genetics.

Nature's Choice: What Science Reveals About the Biological Origins of Sexual Orientation offers both a comprehensive review of findings from over twenty years of research on the factor of biology in the determination of sexual orientation and a fresh perspective on this complex and politically charged subject.

This well-documented book highlights some of the theories of bisexual and homosexual identities and their conceptual bases in cultural history, moral philosophy, biology, and social psychology. Some of the most respected minds in the field of human sexuality challenge traditional views on homosexuality and question the moral principles implicit in many existing psychiatric and psychological theories.