Lynn Robertson has been studying how brain lesions affect spatial abilities for over 20 years, and her work has revealed some surprising facts about space and its role in visual perception. In this book she combines evidence collected in her laboratory with findings from others to explore the cognitive and neural basis of spatial representations and their contributions to spatial awareness, object formation, attention, and binding.
Anatomically, the central nervous system looks remarkably symmetrical--from the relatively simple structures of the spinal cord to the extensively convoluted folds of the cerebral hemispheres. At the functional level, however, there are striking differences between the left and right hemispheres. Although popular writings attribute language abilities to the left hemisphere and spatial abilities to the right, differences in hemispheric function appear to be more subtle. According to Ivry and Robertson, asymmetries over a wide range of perceptual tasks reflect a difference in strength rather than kind, with both hemispheres contributing to the performance of complex tasks, whether linguistic or spatial. After an historical introduction, the authors offer a cognitive neuroscience perspective on hemispheric specialization in perception. They propose that the two hemispheres differ in how they filter task-relevant sensory information. Building on the idea that the hemispheres construct asymmetric representations, the hypothesis provides a novel account of many laterality effects. A notable feature of the authors' work is their attempt to incorporate hemispheric specialization in vision, audition, music, and language within a common framework. In support of their theory, they review studies involving both healthy and neurologically impaired individuals. They also provide a series of simulations to demonstrate the underlying computational principles of their theory. Their work thus describes both the cognitive and neurological architecture of hemispheric asymmetries in perception.
Carcinoma of the lung is one of the most prevalent and aggressive types of cancer, and rates of lung cancer are on the rise. This issue gives a comprehensive review of the most recent advances in Lung Cancer. Epidemiology, etiology, and prevention of lung cancer is first discussed, followed by articles on pre-invasive evaluation and management, screening, pathology and molecular biology. There is an article on the approach to the ground glass nodule. Of great importance is the revised staging classification of Lung Cancer, which is discussed here in detail. Articles on PET imaging, interventional pulmonary, and functional evaluation before Lung Resection are also included. The issue then focuses on advances in treatment for early stage lung cancer, high risk patients with early stage lung cancer, advances in the treatment of Advanced Stage Lung Cancer, Small Cell Lung Cancer, and gene therapy for lung neoplasms.
In Our New Husbands Are Here, Emily Lynn Osborn investigates a central puzzle of power and politics in West African history: Why do women figure frequently in the political narratives of the precolonial period, and then vanish altogether with colonization? Osborn addresses this question by exploring the relationship of the household to the state. By analyzing the history of statecraft in the interior savannas of West Africa (in present-day Guinea-Conakry), Osborn shows that the household, and women within it, played a critical role in the pacifist Islamic state of Kankan-Baté, enabling it to endure the predations of the transatlantic slave trade and become a major trading center in the nineteenth century. But French colonization introduced a radical new method of statecraft to the region, one that separated the household from the state and depoliticized women’s domestic roles. This book will be of interest to scholars of politics, gender, the household, slavery, and Islam in African history.
Educational Rankings Annual is useful for students, parents and school faculty. Also administrators of libraries and educational institutions use rankings to defend budgets, justify new positions, obtain government funding and attract philanthropic support. The annually updated resource presents more than 4,000 national, regional and international lists and rankings compiled from hundreds of respected sources. The entries in Rankings include a description of the ranking, background information on criteria for establishing the hierarchy, additional remarks about the ranking, the complete or partial (if extensive) ranking and source citations if necessary.
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