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Nothing is more memorable than a smell. So why do we persist in dismissing the nose as a blunt instrument? Smell is our most seductive and provocative sense, invading every domain of our lives. We can identify our relatives, detect the availability of a potential mate, sniff out danger, and distinguish between good and bad food just with our noses. In this surprising and delightful book, Lyall Watson rescues our most unappreciated sense from obscurity. He brings to light new evidence concerning Jacobson's Organ: an anatomical feature discovered high in the nose in 1811 and dismissed for centuries as a vestigial ghost. Yet recent research has shown Jacobson's Organ to be an incredibly influential pheromonal mechanism that feeds the area of the brain affecting our awareness, emotional states, and sexual behavior. Following the seven classes of smell devised by the pioneering botanist Carl Linnaeus in his Odores Medicamentorum, Watson examines the roles of smell and pheromones in humans, plants, and animals. He reveals the curious ways in which trees communicate their distress, the olfactory abilities of feral children, the bond we have with our offspring, the psychosexual effects of perfume, and the link between smell and memory formation. Jacobson's Organ unlocks the door to the strange world of this mysterious sense.
This work examines the nature of good and evil. Set at a time when violence has replaced moral, religious and philosophical concerns, the author places evil back where it belongs, in nature and in our lives. Lyall Watson is also the author of Supernature.
Intraspecific communication involves the activation of chemoreceptors and subsequent activation of different central areas that coordinate the responses of the entire organism—ranging from behavioral modification to modulation of hormones release. Animals emit intraspecific chemical signals, often referred to as pheromones, to advertise their presence to members of the same species and to regulate interactions aimed at establishing and regulating social and reproductive bonds. In the last two decades, scientists have developed a greater understanding of the neural processing of these chemical signals. Neurobiology of Chemical Communication explores the role of the chemical senses in mediating intraspecific communication. Providing an up-to-date outline of the most recent advances in the field, it presents data from laboratory and wild species, ranging from invertebrates to vertebrates, from insects to humans. The book examines the structure, anatomy, electrophysiology, and molecular biology of pheromones. It discusses how chemical signals work on different mammalian and non-mammalian species and includes chapters on insects, Drosophila, honey bees, amphibians, mice, tigers, and cattle. It also explores the controversial topic of human pheromones. An essential reference for students and researchers in the field of pheromones, this is also an ideal resource for those working on behavioral phenotyping of animal models and persons interested in the biology/ecology of wild and domestic species.
Comprehensive Overview of Advances in OlfactionThe common belief is that human smell perception is much reduced compared with other mammals, so that whatever abilities are uncovered and investigated in animal research would have little significance for humans. However, new evidence from a variety of sources indicates this traditional view is likely
"Written by two experts in the field, this book provides information useful to physicians for assessing and managing chemosensory disorders - with appropriate case-histories - and summarizes the current scientific knowledge of human olfaction. It will be of particular interest to neurologists, otolaryngologists, psychologists, psychiatrists, and neuroscientists."--BOOK JACKET.
Smell is arguably the least understood sense, yet it has always been a vital component of the human experience, and that of all living creatures. Smell has been used by plants and animals for millions of years to warn, to attract, to identify, to navigate and even to mislead. Smelling to Survive explains some of these fascinating processes and explores how the past would have smelt quite different to our ancestors, and how future technologies will further change the world of scents. Along the way, leading scientist Bill S. Hansson recounts amazing stories from the world of olfactory research: from the tobacco plant that excretes an alarm odour, to mosquitos that cherish the smell of sweaty feet, to lilies that imitate the fragrance of a dead horse. Hansson explains why scientists are interested in the smell that surrounds teenage males, and how climate change affects the smell of our environment. He describes research trips to Christmas Island, where crabs with particularly keen noses crack coconuts on the beach, and outlines studies that reveal how penguins recognize their partner by their scent. Born in Sweden, the neuroethologist Bill S. Hansson served as Vice President of the Max Planck Society and is currently Director of the Max Planck Institute for Chemical Ecology in Jena, Germany, and an honorary professor at Friedrich Schiller University. His research centres on the question of how plants and insects communicate through scent.
In a book whose insight and originality have already had a dazzling impact in France, Alain Corbin has put the sense of smell on the historical map. He conjures up the dominion that the combined forces of smells--from the seductress's civet to the ubiquitous excremental odors of city cesspools--exercised over the lives (and deaths) of the French in the eighteenth and nineteenth centuries.
Olfaction is involved intimately in two of the most basic functions of animals: food intake and reproduction. There are also many other involvements of olfaction in animal behavior, not the least being communication. The authors of this volume have collected and evaluated the comparative anatomy, electron microscopy, electrophysiology, genetics, psychology, chemistry, and biophysics of the olfactory system and then indicated their roles in animal behavior. The importance of olfaction in the everyday life of an animal is just being realized fully and recent years have brought forth a great surge of research in this area. The diverse dis ciplines that contribute to our understanding of olfaction make the development of this volume rewarding for those working in this field. The olfactory system's very high sensitivity and its great power of molecular discrimination interests many chemists and physicists. Data from the study of both vertebrates and insects show that only one molecule of certain odors is necessary to stimulate a single olfactory receptor! The underlying physicochemical events are not yet understood. Also, many mammals can discriminate quickly the difference between two odors of similar structure. Thus the olfactory epithelium and the more centrally located neural components present the ultimate in chemical detection and analysis by a biological system. The principles involved are probably common to those of many other organs.