Robert Snowden – författare

Why do things look blurry underwater? Why do people drive too fast in fog? How do you high-pass filter a cup of tea? What have mixer taps to do with colour vision?Basic Vision: An Introduction to Visual Perception demystifies the processes through which we see the world. Written by three authors with over 80 years of research and undergraduate teaching experience between them, it leads the reader step-by-step through the intricacies of visual processing, with full-colour illustrations on nearly every page. The writing style captures the excitement of recent research in neuroscience that has transformed our understanding of visual processing, but delivers it with a humour that keeps the reader enthused, rather than bemused.The book takes us through the various elements that come together as our perception of the world around us: the perception of size, colour, motion, and three-dimensional space. It illustrates the intricacy of the visual system, discussing its development during infancy, and revealing how the brain can get it wrong, either as a result of brain damage, through which the network of processes become compromised, or through illusion, where the brain compensates for mixed messages by seeing what it thinks should be there, rather than conveying the reality. The book also demonstrates the importance of contemporary techniques and methodology, and neuroscience-based techniques in particular, in driving forward our understanding of the visual system.Online ResourcesThe online resources to accompany Basic Vision feature:For registered adopters:Figures from the book available to download, to facilitate lecture preparation. Test bank of multiple choice questions - a readily available tool for either formative or summative assessment.A Journal Club, with questions to lead students through key research articles that relate to topics covered in the book.For students:Annotated web links, giving students ready access to these additional learning resources.

This book is an easy to read book which gives clear and non-technical information about childlessness caused by male infertility, and about how this childlessness can be resolved by the use of donor insemination (DI). The book is written in a question and answer form and covers the issues raised by those seeking or undergoing DI treatment. It draws on the experience of couples whose own children were conceived by donor insemination and makes the knowledge gained by their experiences available to other childless couples.The questions answered include: What is DI? How common is DI treatment? How successful is DI? How much does DI cost? What happens at the time of treatment? Who is responsible if the baby is handicapped at birth? Does keeping DI hidden cause any problems? How do family and friends react when told about DI? What rights does the child have concerning knowledge of DI? Will the same donor be used for a second baby? Does the donor have any legal rights concerning the child? How many times is a donor used? What records are kept of treatment?