On the cutting edge of neuropsychology and cognitive science, this book investigates lateral asymmetries in the human brain and contrasts these with asymmetries in primates as well as invertebrates, primitive vertebrates, birds, and other mammals. Nine illustrated chapters present asymmetries in lower life forms, progress to hominoids and hominids, and discuss how such asymmetries are responsible for the development of language, upright posture, tool use, intellect, and self-awareness in humans. A summary and conclusions section at the end of each chapter provide both a general survey and a...