Download or read book Mapping re organization of Macaque Visual Cortex by Functional Magnetic Resonance Imaging written by Michael Christoph Schmid and published by . This book was released on 2006 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Functional Anatomy of Visual Processing in the Cerebral Cortex of the Macaque written by Koen Nelissen and published by Leuven University Press. This book was released on 2006 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, we examined the monkey cortical regions involved in processing of color, visual motion information, and the recognition of actions done by others. The aim was to gain better insight in the functional organization of the monkey visual cortex using in-house developed functional imaging techniques. Two different functional imaging techniques were used in these studies, the double-label deoxyglucose technique (DG) and functional magnetic resonance imaging (fMRI) in the awake monkey (Chapter 2). Both techniques allow to obtain an overview of stimulus-related neural activity throughout the whole brain, integrated over a limited amount of time. The results of the color experiments (Chapter 3) clearly showed that color related information is processed within a group of areas belonging to the ventral stream, which is involved in the perception of objects. Color-related metabolic activity was observed in visual areas V1, V2, V3, V4 and inferotemporal cortex (area TEO and TE). These findings set to rest the longstanding controversial claims that color would be processed almost selectively in one extrastriate visual area (V4) (Zeki SM, Brain Res 1973 53: 422-427). These results also show the usefulness of whole brain functional mapping techniques, as a complimentary approach to single cell measurements. In Chapter 4, we investigated which regions in the superior temporal sulcus (STS) of the monkey are involved in the analysis of motion. While the caudal part of the STS has been studied extensively, including area MT/V5 and MST, little is known about motion sensitivity in more anterior-ventral STS regions. Using fMRI, we were able to localize and delineate six different motion sensitive regions in the STS. One of these regions, that we termed 1st (lower superior temporal), had not been described so far. We were able to further characterize the six motion sensitive regions, using a wide variety of motion-sensitivity tests. The results of the latter tests suggested that motion related information might be processed along a second pathway within the STS, in addition to the MT-MST path (which is involved in the perception of heading). This second pathway, which includes the more rostral motion sensitive STS regions (FST, 1st and STPm) is possibly involved in the visual processing of biological movements (movements of animate objects) and actions. Finally, we investigated how and where in the monkey brain visual information about actions done is processed (Chapter 5 and 6). We found (Chapter 5) that, in agreement with earlier single unit results, the observation of grasping movements activates several regions in the premotor cortex of the monkey. Remarkable is that these premotor regions predominantly have a motor function, coding different types of higher order motor acts (for instance grasping of an object). These results are in agreement with earlier suggestions that we are able to understand actions done by others, because observation of a particular motor act activates our own motor representation of the same act. Furthermore, these studies suggested that within the frontal cortex of the monkey, there is a distinction between context-dependent (a person grasping) and more abstract (a hand grasping) action representations. In Chapter 6 we studied two other regions which are involved in the processing of visual information of actions done by others, the superior temporal sulcus (STS) and the parietal cortex. In the parietal cortex, we found a similar distinction between context-dependent and more abstract action representations as observed in prefrontal cortex. These results suggest that the parietal cortex is not only involved in the visual control of action planning, but also in the visual processing of actions performed by others. Based upon anatomical connections between the STS, parietal and frontal regions and motion-, form- and action-related functional properties of the former regions, we tentatively suggest how information about actions done by others might be sent from the STS to the frontal cortex along three different pathways. The latter working hypothesis will be tested in the future by additional fMRI control experiments and by combining fMRI, inactivation and microstimulation experiments while monkeys perform grasping tasks and/or view actions performed by others.
Download or read book Mapping Human Primary Visual Cortex with Functional Magnetic Resonance Imaging written by Stephen A. Engel and published by . This book was released on 1994 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Three dimensional Functional Mapping of the Human Visual Cortex Using Magnetic Resonance Imaging written by Tayi Shen and published by . This book was released on 1994 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book fMRI From Nuclear Spins to Brain Functions written by Kamil Uludag and published by Springer. This book was released on 2015-09-16 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explores the revolutionary fMRI field from basic principles to state-of-the-art research. It covers a broad spectrum of topics, including the history of fMRI's development using endogenous MR blood contrast, neurovascular coupling, pulse sequences for fMRI, quantitative fMRI; fMRI of the visual system, auditory cortex, and sensorimotor system; genetic imaging using fMRI, multimodal neuroimaging, brain bioenergetics and function and molecular-level fMRI. Comprehensive and intuitively structured, this book engages the reader with a first-person account of the development and history of the fMRI field by the authors. The subsequent sections examine the physiological basis of fMRI, the basic principles of fMRI and its applications and the latest advances of the technology, ending with a discussion of fMRI’s future. fMRI: From Nuclear Spins to Brain Function, co-edited by leading and renowned fMRI researchers Kamil Ugurbil, Kamil Uludag and Lawrence Berliner, is an ideal resource for clinicians and researchers in the fields of neuroscience, psychology and MRI physics.
Download or read book Brain Warping written by Arthur W. Toga and published by Elsevier. This book was released on 1998-11-17 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brain Warping is the premier book in the field of brain mapping to cover the mathematics, physics, computer science, and neurobiological issues related to brain spatial transformation and deformation correction. All chapters are organized in a similar fashion, covering the history, theory, and implementation of the specific approach discussed for ease of reading. Each chapter also discusses the computer science implementations, including descriptions of the programs and computer codes used in its execution. Readers of Brain Warping will be able to understand all of the approaches currently used in brain mapping, incorporating multimodality, and multisubject comparisons. Key Features * The only book of its kind * Subject matter is the fastest growing area in the field of brain mapping * Presents geometrically-based approaches to the field of brain mapping * Discusses intensity-based approaches to the field of brain mapping
Download or read book Microstructural Parcellation of the Human Cerebral Cortex written by Stefan Geyer and published by Springer Science & Business Media. This book was released on 2013-07-04 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unraveling the functional properties of structural elements in the brain is one of the fundamental goals of neuroscientific research. In the cerebral cortex this is no mean feat, since cortical areas are defined microstructurally in post-mortem brains but functionally in living brains with electrophysiological or neuroimaging techniques – and cortical areas vary in their topographical properties across individual brains. Being able to map both microstructure and function in the same brains noninvasively in vivo would represent a huge leap forward. In recent years, high-field magnetic resonance imaging (MRI) technologies with spatial resolution below 0.5 mm have set the stage for this by detecting structural differences within the human cerebral cortex, beyond the Stria of Gennari. This provides the basis for an in vivo microanatomical brain map, with the enormous potential to make direct correlations between microstructure and function in living human brains. This book starts with Brodmann’s post-mortem map published in the early 20th century, moves on to the almost forgotten microstructural maps of von Economo and Koskinas and the Vogt-Vogt school, sheds some light on more recent approaches that aim at mapping cortical areas noninvasively in living human brains, and culminates with the concept of “in vivo Brodmann mapping” using high-field MRI, which was introduced in the early 21st century.
Download or read book Electrical Stimulation Research Techniques written by Michael Patterson and published by Elsevier. This book was released on 2013-07-10 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods in Psychological Physiology, Volume 3: Electrical Stimulation Research Techniques is a compilation of papers that focus on the different theories and techniques of electrical stimulation and its applications to psychology. The first five chapters cover different kinds of electrical stimulation, their basic principles, and techniques involved. These include extracellular and intracellular stimulation, the microstimulation technique, and the stimulation of the brain. Chapters 6 to 9 discuss the beneficial effects and uses of these stimulation techniques, such as motivation and reinforcement, memory research, its relation to brain lesions, and the implications for electroconvulsive therapy. The last two chapters talk about the electrical stimulation of the peripheral nerve and the grid and peripheral shock stimulation. The book is recommended for psychotherapists who wish to learn more about the use of electrical stimulation techniques as treatment, and for neurologists who would like to further understand the effects of electrical stimulation.
Download or read book A Combined MRI and Histology Atlas of the Rhesus Monkey Brain in Stereotaxic Coordinates written by Kadharbatcha S. Saleem and published by Academic Press. This book was released on 2012-04-23 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Combined MRI and Histology Atlas of the Rhesus Monkey Brain in Stereotaxic Coordinates, Second Edition maps the detailed architectonic subdivisions of the cortical and subcortical areas in the macaque monkey brain using high-resolution magnetic resonance (MR) images and the corresponding histology sections in the same animal. This edition of the atlas is unlike anything else available as it includes the detailed cyto- and chemoarchitectonic delineations of the brain areas in all three planes of sections (horizontal, coronal, and sagittal) that are derived from the same animal. This is a significant progress because in functional imaging studies, such as fMRI, both the horizontal and sagittal planes of sections are often the preferred planes given that multiple functionally active regions can be visualized simultaneously in a single horizontal or sagittal section. This combined MRI and histology atlas is designed to provide an easy-to-use reference for anatomical and physiological studies in macaque monkeys, and in functional-imaging studies in human and non-human primates using fMRI and PET. The first rhesus monkey brain atlas with horizontal, coronal, and sagittal planes of sections, derived from the same animal Shows the first detailed delineations of the cortical and subcortical areas in horizontal, coronal, and sagittal plane of sections in the same animal using different staining methods Horizonal series illustrates the dorsoventral extent of the left hemisphere in 47 horizontal MRI and photomicrographic sections matched with 47 detailed diagrams (Chapter 3) Coronal series presents the full rostrocaudal extent of the right hemisphere in 76 coronal MRI and photomicrographic sections, with 76 corresponding drawings (Chapter 4) Sagittal series shows the complete mediolateral extent of the left hemisphere in 30 sagittal MRI sections, with 30 corresponding drawings (Chapter 5). The sagittal series also illustrates the location of different fiber tracts in the white matter Individual variability - provides selected cortical and subcortical areas in three-dimensional MRI (horizontal, coronal, and sagittal MRI planes). For comparison, it also provides similar areas in coronal MRI section in six other monkeys. (Chapter 6) Vasculature - indicates the corresponding location of all major blood vessels in horizontal, coronal, and sagittal series of sections Provides updated information on the cortical and subcortical areas, such as architectonic areas and nomenclature, with references, in chapter 2 Provides the sterotaxic grid derived from the in-vivo MR image
Download or read book The Auditory Cortex written by Jeffery A. Winer and published by Springer Science & Business Media. This book was released on 2010-12-02 with total page 711 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been substantial progress in understanding the contributions of the auditory forebrain to hearing, sound localization, communication, emotive behavior, and cognition. The Auditory Cortex covers the latest knowledge about the auditory forebrain, including the auditory cortex as well as the medial geniculate body in the thalamus. This book will cover all important aspects of the auditory forebrain organization and function, integrating the auditory thalamus and cortex into a smooth, coherent whole. Volume One covers basic auditory neuroscience. It complements The Auditory Cortex, Volume 2: Integrative Neuroscience, which takes a more applied/clinical perspective.
Download or read book A Combined MRI and Histology Atlas of the Rhesus Monkey Brain in Stereotaxic Coordinates written by Kadharbatcha S. Saleem and published by Elsevier. This book was released on 2006-11-21 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: This atlas maps the detailed architectonic subdivisions of the cortical and subcortical areas in the macaque monkey brain using high-resolution magnetic resonance (MR) images and the corresponding histology sections in the same animal. This book presents the detailed mapping of the architectonic areas in the horizontal plane of sections with reference to the MRI that has not been reported previously in macaque monkeys. In the second part of the atlas, the coronal plane is presented using the same technique. A third part shows the quick identification of several important cortical and subcortical areas (around 30 areas) in horizontal, coronal and sagittal MR images. This atlas is unlike anything else available as it includes and compares each section to imaging data. This is a significant progress, as the vast majority of research in the field now routinely work with fMRI images. · Provides the first combined MRI and Histology maps of the cortical and subcortical areas of any non-human primate species· Shows the first detailed delineations of the cortical and subcortical areas in both horizontal and coronal planes in the same animal using five different staining methods· Illustrates the entire dorsoventral extent of the left hemisphere in 47 horizontal MRI and photomicrographs matched with 47 detailed diagrams (Chapter 3) · Presents the full rostrocaudal extent of the right hemisphere in 76 coronal MRI and photomicrographs, and 76 corresponding drawings (Chapter 4)· Illustrates the selected cortical and subcortical areas in horizontal, coronal and sagittal MRI planes (Chapter 5)· Provides the sterotaxic grid derived from the in-vivo MR image· Likely to become a standard reference for anatomical, physiological, and functional imaging studies in primates (fMRI, PET and MEG)
Download or read book Introduction to Functional Magnetic Resonance Imaging written by Richard B. Buxton and published by Cambridge University Press. This book was released on 2009-08-27 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional Magnetic Resonance Imaging (fMRI) has become a standard tool for mapping the working brain's activation patterns, both in health and in disease. It is an interdisciplinary field and crosses the borders of neuroscience, psychology, psychiatry, radiology, mathematics, physics and engineering. Developments in techniques, procedures and our understanding of this field are expanding rapidly. In this second edition of Introduction to Functional Magnetic Resonance Imaging, Richard Buxton – a leading authority on fMRI – provides an invaluable guide to how fMRI works, from introducing the basic ideas and principles to the underlying physics and physiology. He covers the relationship between fMRI and other imaging techniques and includes a guide to the statistical analysis of fMRI data. This book will be useful both to the experienced radiographer, and the clinician or researcher with no previous knowledge of the technology.
Download or read book Investigations of the Macaque Visual System Using Functional Magnetic Resonance Imaging written by Mark A. Pinsk and published by . This book was released on 2005 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Micro Meso and Macro Connectomics of the Brain written by Henry Kennedy and published by Springer. This book was released on 2016-03-10 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has brought together leading investigators who work in the new arena of brain connectomics. This includes ‘macro-connectome’ efforts to comprehensively chart long-distance pathways and functional networks; ‘micro-connectome’ efforts to identify every neuron, axon, dendrite, synapse, and glial process within restricted brain regions; and ‘meso-connectome’ efforts to systematically map both local and long-distance connections using anatomical tracers. This book highlights cutting-edge methods that can accelerate progress in elucidating static ‘hard-wired’ circuits of the brain as well as dynamic interactions that are vital for brain function. The power of connectomic approaches in characterizing abnormal circuits in the many brain disorders that afflict humankind is considered. Experts in computational neuroscience and network theory provide perspectives needed for synthesizing across different scales in space and time. Altogether, this book provides an integrated view of the challenges and opportunities in deciphering brain circuits in health and disease.
Download or read book The Primate Visual System written by Jon H. Kaas and published by CRC Press. This book was released on 2003-07-28 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last 20 years of research have been marked by exceptional progress in understanding the organization and functions of the primate visual system. This understanding has been based on the wide application of traditional and newly emerging methods for identifying the functionally significant subdivisions of the system, their interconnections, the
Download or read book The Rhesus Monkey Brain in Stereotaxic Coordinates written by George Paxinos and published by Academic Press. This book was released on 2024-03-01 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paxinos and Petrides' The Rhesus Monkey Brain in Stereotaxic Coordinates is the most comprehensive and accurate atlas of the monkey brain currently available. The fourth edition of this classic book will be a complete revision, featuring many improvements and upgrades. Containing coronal diagrams and accompanying photographic plates spaced at 120 μm intervals, this atlas follows the same nomenclature and abbreviations conventions as the mouse, rat, chicken, and human brain atlases published under George Paxinos’ leadership. This atlas is suitable for researchers who work with both monkeys and humans. Constructed by the established leaders in neuroanatomical atlas development, the new edition will again be the indispensable resource for all scientists working on the primate nervous system. 141 completely revised coronal diagrams and accompanying colour photographic plates spaced at approximately 120 μm intervals 60 colour photographic coronal plates of SMI immunoreactivity with completely revised delineations Includes MR images at approximately the same levels as the coronal diagrams Follows the same nomenclature and abbreviations as the mouse, rat, chicken, marmoset and human brain atlases, with indications of correspondence to alternative macaque nomenclatures This atlas was used for the delineation and nomenclature of MRI-based macaque brain atlases for neuroimaging analyses, including the SARM
Download or read book The Visual Neurosciences written by John Simon Werner and published by MIT Press. This book was released on 2004 with total page 975 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential reference book for visual science.
