Download or read book Unravelling the Link Between the Structure and Function of the Human Brain written by Sarina Jennifer Iwabuchi and published by . This book was released on 2013 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The brain structure-function relationship has been one of the most fundamental issues in neuroscience and the precise underpinnings of such a link has remained elusive. To address this, investigations have discovered associations between cortical structure or white matter architecture and function in the forms of brain activation, task performance, and/or cognitive dysfunctions. However, limited attention has been given to the search for a more direct link between task-related regions of cortical activation and how they are wired together. The overarching goal of this thesis is to gain a further understanding of this relationship by directly assessing functionally coupled regions and the underlying white matter architecture. The first study used diffusion tensor imaging (DTI) and tractography to provide a global outlook of structural asymmetries of white matter in the major lobes, and the extent to which they relate to known functional asymmetries. With the inclusion of the individual diffusion measures (mean diffusion [MD], parallel diffusion and perpendicular diffusion) in combination with fractional anisotropy (FA), the microstructure of the pathways generated from each lobe was closely examined. Structurally, asymmetries did indeed follow expected patterns of functional laterality in terms of language and visuospatial function. In order to validate this anatomo-functional relationship, studies two and three combined the methodologies of functional magnetic resonance imaging (fMRI) with DTI and tractography. In each individual, the regions that were shown to be functionally connected during particular cognitive tasks were identified. These sites were then used to track white matter pathways using tractography. As expected, study two showed a leftward functional network for language production and comprehension. A significant correlation between functional and structural measures was found for the fronto-motor pathway recruited during the generation of verbs. It is theorised that this pathway may be specific to verb generation, given previous reports of a possible motor component in the processing of verbs, while the longer-range connection to temporal regions may be involved in a more diverse range of functions than language alone. Interestingly, tractography between the regions involved in comprehension revealed a ventral as well as a dorsal white matter pathway, which is in accord with the previously proposed dual route theory of reading. Using the same approach, study three explored the more widely and bilaterally distributed circuitry of working memory to investigate whether a structure-function relationship could be established in more complex networks. To further extend the work on cerebral asymmetries, spatial and verbal elements were also included. Functionally, a typical fronto-parietal network was identified for both spatial and verbal working memory. In terms of functional and structural connectivity however, subtle yet significant differences were revealed within both networks that may reflect distinct cognitive processes required for each task. Functional connectivity showed a leftward pattern for the spatial task and rightward connectivity for verbal, contrary to early studies. Measures of white matter integrity on the other hand, were much more symmetrical across the tasks, though variations in the individual diffusion measures revealed possible differences in underlying axonal properties. However, the spatial working memory network almost exclusively yielded significant correlations between structural and functional measures in the parietal-premotor pathways, which may reflect the specificity of the pathways for spatial working memory. Furthermore, comparisons between the two tasks revealed increased activity in the left precentral gyrus during verbal working memory, consistent with the idea that spatial working memory involves a generic system for working memory, while verbal working memory requires additional recruitment of left hemispheric regions for processing linguistic stimuli".
Download or read book Unravelling the complex and multifaceted role of the cerebellum in health and disease written by Marija Cvetanovic and published by Frontiers Media SA. This book was released on 2023-04-20 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alzheimer s Disease written by Anne Brown Rodgers and published by . This book was released on 2008 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atlas of Human Brain Connections written by Marco Catani and published by Oxford University Press, USA. This book was released on 2012-06-14 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the major challenges of modern neuroscience is to define the complex pattern of neural connections that underlie cognition and behaviour. This atlas capitalises on novel diffusion MRI tractography methods to provide a comprehensive overview of connections derived from virtual in vivo tractography dissections of the human brain.
Download or read book Handbook of Neuroengineering written by Nitish V. Thakor and published by Springer Nature. This book was released on 2023-02-02 with total page 3686 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook serves as an authoritative reference book in the field of Neuroengineering. Neuroengineering is a very exciting field that is rapidly getting established as core subject matter for research and education. The Neuroengineering field has also produced an impressive array of industry products and clinical applications. It also serves as a reference book for graduate students, research scholars and teachers. Selected sections or a compendium of chapters may be used as “reference book” for a one or two semester graduate course in Biomedical Engineering. Some academicians will construct a “textbook” out of selected sections or chapters. The Handbook is also meant as a state-of-the-art volume for researchers. Due to its comprehensive coverage, researchers in one field covered by a certain section of the Handbook would find other sections valuable sources of cross-reference for information and fertilization of interdisciplinary ideas. Industry researchers as well as clinicians using neurotechnologies will find the Handbook a single source for foundation and state-of-the-art applications in the field of Neuroengineering. Regulatory agencies, entrepreneurs, investors and legal experts can use the Handbook as a reference for their professional work as well.
Download or read book Introduction to Psychology written by Jennifer Walinga and published by Hasanraza Ansari. This book was released on with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is designed to help students organize their thinking about psychology at a conceptual level. The focus on behaviour and empiricism has produced a text that is better organized, has fewer chapters, and is somewhat shorter than many of the leading books. The beginning of each section includes learning objectives; throughout the body of each section are key terms in bold followed by their definitions in italics; key takeaways, and exercises and critical thinking activities end each section.
Download or read book The Brain Unraveling the Mystery of How It Works written by Thomas L. Saaty and published by RWS Publications. This book was released on 2019-03-01 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work confirms what many contemporary thinkers have claimed: that all human actions, sensations, thoughts and even emotions are derived from the synthesis of neural firings in the brain. This book offers the mathematics to describe how this happens and the nature of their interaction, feedback and synthesis. As an acknowledgement of his expertise, in 2017, the last year of his life, the highly acclaimed Neural Networks journal published two of his papers on the subject and the European Journal of Pure and Applied Mathematics published the article “Origin of neural firing and synthesis in making comparisons” co-authored with Dr Luis Vargas. The purpose of this book is to construct a scientific framework of the process by which the brain responds to stimuli and integrates sensory data and, further, how it synthesizes perceptions, memories, inputs from the muscles and nervous systems of the body and ideas. Because the brain puts pieces of information together in stages.
Download or read book Synaptic Plasticity written by Michael R. Kreutz and published by Springer Science & Business Media. This book was released on 2012-02-18 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the current concepts of molecular mechanisms in synaptic plasticity and provides a comprehensive overview of cutting-edge research technology used to investigate the molecular dynamics of the synapses. It explores current concepts on activity-dependent remodeling of the synaptic cytoskeleton and presents the latest ideas on the different forms of plasticity in synapses and dendrites. Synaptic Plasticity in Health and Disease not only supplies readers with extensive knowledge on the latest developments in research, but also with important information on clinical and applied aspects. Changes in spine synapses in different brain disease states, so-called synaptopathies, are explained and described by experts in the field. By outlining basic research findings as well as physiological and pathophysiological impacts on synaptic plasticity, the book represents an essential state-of-the-art work for scientists in the fields of biochemistry, molecular biology and the neurosciences, as well as for doctors in neurology and psychiatry alike.
Download or read book Opportunities in Biology written by National Research Council and published by National Academies. This book was released on 1989-01-01 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology has entered an era in which interdisciplinary cooperation is at an all-time high, practical applications follow basic discoveries more quickly than ever before, and new technologiesâ€"recombinant DNA, scanning tunneling microscopes, and moreâ€"are revolutionizing the way science is conducted. The potential for scientific breakthroughs with significant implications for society has never been greater. Opportunities in Biology reports on the state of the new biology, taking a detailed look at the disciplines of biology; examining the advances made in medicine, agriculture, and other fields; and pointing out promising research opportunities. Authored by an expert panel representing a variety of viewpoints, this volume also offers recommendations on how to meet the infrastructure needsâ€"for funding, effective information systems, and other supportâ€"of future biology research. Exploring what has been accomplished and what is on the horizon, Opportunities in Biology is an indispensable resource for students, teachers, and researchers in all subdisciplines of biology as well as for research administrators and those in funding agencies.
Download or read book Cajal s Neuronal Forest written by Javier DeFelipe and published by Oxford University Press. This book was released on 2018 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection contains hundreds of beautiful rarely-seen-before figures produced throughout the nineteenth century and the beginning of the twentieth century by famed father-of-modern-neuroscience Santiago Ramón y Cajal (1852-1934) and his contemporaries. Cajal was captivated by the beautiful shapes of the cells of the nervous system. He and his fellow scientists saw neurons as trees and glial cells as bushes. Given their high density and arrangement, neurons and glial resembled a thick forest, a seemingly impenetrable terrain of interacting cells mediating cognition and behavior.
Download or read book Punitivity written by Helmut Kury and published by Brockmeyer Verlag. This book was released on 2011 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Discoveries in the Human Brain written by Louise H. Marshall and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: 170u can climb back up a stream of radiance to the sky, and back through history up the stream of time. 1 -Robert Frost topics that he judged to be important in brain his From the last years of the second millennium, tory leading into the end of the century, and was we can look back on antecedent events in neuro undertaken in response to the enthusiasm gener science with amazement that so much of modern ated by exhibition at several national and interna biomedical science was anticipated, or even said or done, in an earlier time. That surprise can be tional meetings of a series oflarge posters for which matched by appreciation for what the pioneer Magoun wrote a 27-page brochure. The posters investigators, with no inkling that they were creat were viewed by a multitude of young neuroscien ing a discipline, contributed to its emergence as a tists who wanted more, as well as by mature inves productive force in human progress. In today's tigators who were warmly pleased to see familiar names and faces from the past. The acclaim was reductionist atmosphere, in which research at the molecular level is producing breathtaking new accompanied by a veritable deluge of requests for knowledge throughout biology, the student may an illustrated, expanded publication.
Download or read book Index Medicus written by and published by . This book was released on 2004 with total page 1876 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Download or read book A History of the Brain written by Andrew P. Wickens and published by Psychology Press. This book was released on 2014-12-08 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: A History of the Brain tells the full story of neuroscience, from antiquity to the present day. It describes how we have come to understand the biological nature of the brain, beginning in prehistoric times, and progressing to the twentieth century with the development of Modern Neuroscience. This is the first time a history of the brain has been written in a narrative way, emphasizing how our understanding of the brain and nervous system has developed over time, with the development of the disciplines of anatomy, pharmacology, physiology, psychology and neurosurgery. The book covers: beliefs about the brain in ancient Egypt, Greece and Rome the Medieval period, Renaissance and Enlightenment the nineteenth century the most important advances in the twentieth century and future directions in neuroscience. The discoveries leading to the development of modern neuroscience gave rise to one of the most exciting and fascinating stories in the whole of science. Written for readers with no prior knowledge of the brain or history, the book will delight students, and will also be of great interest to researchers and lecturers with an interest in understanding how we have arrived at our present knowledge of the brain.
Download or read book The Major Discoveries of Cajal and His Disciples Consolidated Milestones for the Neuroscience of the XXIst Century written by Fernando de Castro and published by Frontiers Media SA. This book was released on 2017-04-25 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: When Santiago Ramón y Cajal started to unravel the fine structure of the nervous system in the last decades of the XIXth century maybe only his unbeatable soul of brave Spaniard imagined that most of the descriptions were scientific truths that lasted to date. Simple histological stainings, curiosity to ameliorate these, monocular microscopes, patience for drawing his observations and a rich imaginative open mind: this is the recipy for Cajal success. His descriptions of connectivity in the nervous system, compiled in Cajal's opus magna published in 1904 ("Textura del sistema nervioso del hombre y los vertebrados") and 1911 ("Histologie du systeme nerveux"), have been corroborated by modern techniques decade after decade. Even more, the main hypothesis that Cajal raised are universally recognised as biological laws, today: the neuron theory, the law on the dynamic polarization of the neuron and the chemotropic hypothesis. That is: the nervous system is not a sincitial network but is formed by individual cells; the transmission of the nerve impulses follow a main direction within a given neuron; the axons are guided by chemical substances in a chemotropic way, till form synapses with their targets. Attracted by Cajal's strong personality and scientific success, a number of medical students and doctors join him in the crusade to explore the nervous system. And the seed planted by the universal savant was really successful: Francisco Tello described interesting aspects of the regeneration of peripheral nerves which are very useful for neuroscientist currently working in this topic; Nicolás Achúcarro significantly contributed to study neuroglia and future microglia; Pío del Río-Hortega identified two out of the four main nervous cell types, the oligodendrocytes and microglia, and proposed an almost still valid classification for the CNS tumours; Fernando de Castro made was the first description of arterial chemoreceptors in the carotid body; Rafael Lorente de Nó was a dominant figure of Neuroscience for decades after the IInd World War, first describing the columnar organization of the cerebral cortex well before Mountcastle, Hubbel and Wiesel. Even less recognised co-workers and disciples of Cajal (his brother Pedro Ramón y Cajal, Domingo Sánchez, the neurologist Rodríguez-Lafora... protagonised discoveries that are consolidated scientific truths today). Altogether, it is difficult (if not impossible) to find a school in biology contributing in such a fundamental and variated way to the common acervo like the collectively known as Cajal School or Spanish Neurological School. Although the particular way to work of the Maestro, selecting a pleiade of brilliant collaborators with whom accomplish such a titanic feat, giving them freedom for their studies, has been recognised and confronted to antagonic systems followed by other relevant scientists and scientific schools, the general recognition of such a significant major milestones for Neuroscience and their vigency in the well-marched XXIst century is not: this is the purpose of this Ebook, to remind all these examples of how successful can be the scientific work when it is minutious, constant and performed by brilliant, imaginative and skilled scientists with a minimal conditions supporting their efforts.
Download or read book The Concise Encyclopedia of Statistics written by Yadolah Dodge and published by Springer Science & Business Media. This book was released on 2008-04-15 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Concise Encyclopedia of Statistics presents the essential information about statistical tests, concepts, and analytical methods in language that is accessible to practitioners and students of the vast community using statistics in medicine, engineering, physical science, life science, social science, and business/economics. The reference is alphabetically arranged to provide quick access to the fundamental tools of statistical methodology and biographies of famous statisticians. The more than 500 entries include definitions, history, mathematical details, limitations, examples, references, and further readings. All entries include cross-references as well as the key citations. The back matter includes a timeline of statistical inventions. This reference will be an enduring resource for locating convenient overviews about this essential field of study.
Download or read book Idea of Consciousness written by Max R. Bennett and published by CRC Press. This book was released on 2020-07-26 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Idea of Consciousness examines the problem of how the working of synaptic connections might give rise to consciousness, and describes the current neuroscientific concepts and techniques used to identify and explore those parts of the brain that may be involved. This book will serve as an invaluable and stimulating introduction to the subject. Beautifully illustrated, it is a must for anyone who is curious about consciousness.
