The fifth edition of this leading reference book on insurance medicine, provides a comprehensive guide to life expectancy for underwriters and clinicians involved in the life insurance industry. Extensively revised and expanded, the new edition reflects developments in life and healthcare insurance as well as medicine.
This chapter explains why this book is organized as it is. Each neocortical area has a unique pattern of inputs and outputs. This means that the challenge is to understand the transformation that each of the prefrontal areas performs from input to output. Functional brain imaging allows us to visualize the human brain at work, but it does not have the spatial resolution to identify the mechanisms that support the transformations that the brain performs. It is neurophysiological recordings from cells that tell us how these are achieved. Chapters 3-8 are therefore mainly devoted to studies that have been carried out on the prefrontal cortex of macaque monkeys because the methods are necessarily invasive. Apart from recording, the methods include making selective lesions in an area; it is these that identify the contribution that is unique to that area. The book ends by reviewing the evolution of the human prefrontal cortex; and the final two chapters discuss the ways in which the human prefrontal cortex is specialized in terms of function. In doing so, they attempt to account for the intellectual gap between humans and other primates"--
The prefrontal cortex makes up almost a quarter of the human brain, and it expanded dramatically during primate evolution. The Neurobiology of the Prefrontal Cortex presents a new theory about its fundamental function. In this important new book, the authors argue that primate-specific parts of the prefrontal cortex evolved to reduce errors in foraging choices, so that particular ancestors of modern humans could overcome periodic food shortages. These developments laid the foundation for working out problems in our imagination, which resulted in the insights that allow humans to avoid errors entirely, at least at times. In the book, the authors detail which parts of the prefrontal cortex evolved exclusively in primates, how its connections explain why the prefrontal cortex alone can perform its function, and why other parts of the brain cannot do what the prefrontal cortex does. Based on an analysis of its evolutionary history, the book uses evidence from lesion, imaging, and cell-recording experiments to argue that the primate prefrontal cortex generates goals from a current behavioural context and that it can do so on the basis of single events. As a result, the prefrontal cortex uses the attentive control of behaviour to augment an older general-purpose learning system, one that evolved very early in the history of animals. This older system learns slowly and cumulatively over many experiences based on reinforcement. The authors argue that a new learning system evolved in primates at a particular time and place in their history, that it did so to decrease the errors inherent in the older learning system, and that severe volatility of food resources provided the driving force for these developments. Written by two leading brain scientists, The Neurobiology of the Prefrontal Cortex is an important contribution to our understanding of the evolution and functioning of the human brain.
Brain imaging has revolutionised the field of Psychology - once more concerned with IQ tests, reaction times and questionnaires. Most Psychology departments now have access to an MRI scanner - some have even renamed themselves as departments of cognitive neuroscience. Yet brain imaging can be a minefield, whichever discipline you approach it from. If you are a psychologist, you will have been taught how to do behavioural experiments, but may know little neuroanatomy or neurophysiology. If you are a neurologist or psychiatrist, then you may know the neuroanatomy and neurophysiology, but not know how to carry out experiments on mental phenomena. This is a practical guide to brain imaging, showing how it can advance a true neuroscience of human cognition. It is accessible to those starting out in imaging, whilst also informative for those who have already acquired some expertise. At the heart of the book are 6 main chapters, focusing on - the signal, experimental methods, anatomy, functional specialisation, functional systems, and other methods. For students and researchers in psychology and neuroscience, this is the essential companion when embarking on brain imaging studies.
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