Download or read book Exploring the Thalamus written by S. Murray Sherman and published by Elsevier. This book was released on 2001-01-02 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thalamus is a group of cells placed centrally in the brain that serve a critical role in controlling how both sensory and motor signals are passed from one part of the cerebral cortex to another. Essentially, all information reaching the cerebral cortex and thus consciousness is relayed through the thalamus. The role of the thalamus in controlling the flow of information (such as visual, auditory, and motor) to the cortex has only recently begun to be understood. This book provides an in-depth look at the function of the thalamus and its role as relayer of information to the cerebral cortex. The authors explore how the thalamus controls messages that are passed to the cortex and they introduce the novel suggestion that the thalamus serves a critical role in controlling how messages pass from one part of the cortex to another. Exploring the Thalamus is a comprehensive, up-to-date reference for researchers. It discusses problems concerning the function and structure of the thalamus and concludes each chapter with thought-provoking questions regarding future research. Focuses on thalamocortical interrelationships Discusses important problems concerning the function and structure of the thalamus Concludes each chapter with thought-provoking questions requiring future research

Download or read book The Thalamus written by Michael M. Halassa and published by Cambridge University Press. This book was released on 2022-09-01 with total page 1325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thalamus is a key structure in the mammalian brain, providing a hub for communication within and across distributed forebrain networks. Research in this area has undergone a revolution in the last decade, with findings that suggest an expanded role for the thalamus in sensory processing, motor control, arousal regulation, and cognition. Moving beyond previous studies of anatomy and cell neurochemistry, scientists have expanded into investigations of cognitive function, and harness new methods and theories of neural computation. This book provides a survey of topics at the cutting edge of this field, covering basic anatomy, evolution, development, physiology and computation. It is also the first book to combine these disciplines in one place, highlighting the interdisciplinary nature of thalamus research, and will be an essential resource for students and experts in biology, medicine and computer science.

Download or read book The Cerebral Cortex and Thalamus written by Usrey and published by Oxford University Press. This book was released on 2023-11-10 with total page 817 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book is an attempt to cover two gaps in our appreciation of the critical interplay between thalamus and cortex . One is that the tendency in covering these subjects is to treat each in isolation, which overlooks the point that a key to understanding their function is appreciating their essential partnership and interdependence for sensation, action, and cognition"--

Download or read book The Cognitive Thalamus written by Yuri B. Saalmann and published by Frontiers Media SA. This book was released on 2015-06-17 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cognitive processing is commonly conceptualized as being restricted to the cerebral cortex. Accordingly, electrophysiology, neuroimaging and lesion studies involving human and animal subjects have almost exclusively focused on defining roles for cerebral cortical areas in cognition. Roles for the thalamus in cognition have been largely ignored despite the fact that the extensive connectivity between the thalamus and cerebral cortex gives rise to a closely coupled thalamo-cortical system. However, in recent years, growing interest in the thalamus as much more than a passive sensory structure, as well as methodological advances such as high-resolution functional magnetic resonance imaging of the thalamus and improved electrode targeting to subregions of thalamic nuclei using electrical stimulation and diffusion tensor imaging, have fostered research into thalamic contributions to cognition. Evidence suggests that behavioral context modulates processing in primary sensory, or first-order, thalamic nuclei (for example, the lateral geniculate and ventral posterior nuclei), allowing attentional filtering of incoming sensory information at an early stage of brain processing. Behavioral context appears to more strongly influence higher-order thalamic nuclei (for example, the pulvinar and mediodorsal nucleus), which receive major input from the cortex rather than the sensory periphery. Such higher-order thalamic nuclei have been shown to regulate information transmission in frontal and higher-order sensory cortex according to cognitive demands. This Research Topic aims to bring together neuroscientists who study different parts of the thalamus, particularly thalamic nuclei other than the primary sensory relays, and highlight the thalamic contributions to attention, memory, reward processing, decision-making, and language. By doing so, an emphasis is also placed on neural mechanisms common to many, if not all, of these cognitive operations, such as thalamo-cortical interactions and modulatory influences from sources in the brainstem and basal ganglia. The overall view that emerges is that the thalamus is a vital node in brain networks supporting cognition.

Download or read book Neurobiology of Cingulate Cortex and Limbic Thalamus written by VOGT and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Role of the Thalamus in Motivated Behavior written by Xuan (Anna) Li and published by Frontiers Media SA. This book was released on 2021-09-09 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stereotactic Atlas of the Human Thalamus and Basal Ganglia written by Anne Morel and published by CRC Press. This book was released on 2007-03-30 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference presents a new collection of diagrams of the human thalamus, basal ganglia, and adjoining structures for accurate targeting in stereotactic functional neurosurgery. This guide consists of a series of maps in the three stereotactic planes and comparisons between brains with similar and differing intercommissural distances to help spec

Download or read book Building the gateway to consciousness about the development of the thalamus written by Tomomi Shimogori and published by Frontiers Media SA. This book was released on 2015-06-19 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since years, patterning and function of some brain parts such as the cortex in the forebrain and the optical tectum or cerebellum in the midbrain/hindbrain region are under strong investigation. Interestingly the diencephalon located in the caudal forebrain has been ignored for decades. Consequently, the existing knowledge from the development of this region to function in the mature brain is very fragmented. The central part of the diencephalon is the thalamus. This central relay station plays a crucial role in distributing incoming sensory information to appropriate regions of the cortex. The thalamus develops in the posterior part of the embryonic forebrain, where early cell fate decisions are controlled by local signaling centers. In this Research Topic we discuss recent achievements elucidating thalamic neurogenesis - from neural progenitor cells to highly specialized neurons with cortical target cells in great distance. In parallel, we highlight developmental aspects leading from the early thalamic anlage to the late the organization of the complex relay station of the brain.

Download or read book Thalamic Networks for Relay and Modulation written by Diego Minciacchi and published by Elsevier. This book was released on 2013-09-03 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thalamic Networks for Relay and Modulation is the third in a series that springs from an idea of Giorgio Macchi who wished to establish periodical updates on thalamic research by bringing to Italy investigators who would engage in an international sharing of ideas and experiences. It reflects the renewed interest in the modulation of thalamic relay activity by intrinsic and extrinsic sources, while continuing to underscore the essential role of the thalamus as the gatekeeper of the cerebral cortex and of the pathways to perception. The papers that form the substance of this book were presented at a Symposium held at the Catholic University, Rome, Italy, in September 1992, as a Satellite to the 15th Annual Meeting of the European Neuroscience Association. The volume is organized into four parts. Part I is basically concerned with developmental and evolutionary approaches. Part II highlights relay functions of visual, motor, and somatosensory relay nuclei and relay functions of the intralaminar nuclei. Part III deals primarily with the pharmacology of thalamic neurons. Part IV emphasizes the mechanisms that underlie the functional assembly of thalamic cells into collectively acting ensembles, largely revealed in rhythmic oscillations, and on the behavioral manifestations that accompany them.

Download or read book Thalamic Function Beyond a Simple Relay written by Vincenzo Crunelli and published by Frontiers Media SA. This book was released on 2016-05-20 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thalamus is often described as a relay. Typified by sensory pathways, this concept leads to thalamic nuclei being viewed as areas that passively streams information from a single source to the cortex, without affecting the nature of that information. However, diverse intrathalamic connections, the varying synaptic and membrane properties of thalamic neurons and the large number of inputs from non-sensory sources make the idea that the thalamus is just a passive relay unlikely. Furthermore, a large number of thalamic nuclei are not primarily driven by sensory signals nor do they exclusively target the cortex, meaning the thalamus must do more than simply pass sensory signals to the cortex. Finally, there is a wealth of research demonstrating that the thalamus does indeed function in ways that are not captured by the concept of a simple relay. So why, given all of this, is the primary paradigm for describing the thalamus, a relay? This Research Topic covers original research, reviews and hypotheses on thalamic function that explore the concept that the thalamus performs computational tasks other than simply passively relaying information.

Download or read book Exploring the Thalamus and Its Role in Cortical Function written by S. Murray Sherman and published by MIT Press (MA). This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thalamus plays a critical role in perceptual processing, but many questions remain about what thalamic activities contribute to sensory and motor functions. In this book, two pioneers in research on the thalamus examine the close two-way relationships between thalamus and cerebral cortex and look at the distinctive functions of the links between the thalamus and the rest of the brain. Countering the dominant "corticocentric" approach to understanding the cerebral cortex—which does not recognize that all neocortical areas receive important inputs from the thalamus and send outputs to lower motor centers—S. Murray Sherman and R. W. Guillery argue for a reappraisal of the way we think about the cortex and its interactions with the rest of the brain. The book defines some of the functional categories critical to understanding thalamic functions, including the distinctions between drivers (pathways that carry messages to the cortex) and modulators (which can change the pattern of transmission) and between first-order and higher-order thalamic relays—the former receiving ascending drivers and the latter receiving cortical drivers. This second edition further develops these distinctions with expanded emphasis throughout the book on the role of the thalamus in cortical function. An important new chapter suggests a structural basis for linking perception and action, supplying supporting evidence for a link often overlooked in current views of perceptual processing.

Download or read book Basal Ganglia and Thalamus in Health and Movement Disorders written by Kristy Kultas-Ilinsky and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is comprised of the majority of lecture presentations and a few select posters presented at the International Workshop, "Basal Ganglia and Thalamus in Health and Movement Disorders," held in Moscow, Russia, on May 29-31, 2000. The International Committee responsible for organizing this workshop included Alexander Konovalov, Director, Burdenko Institute of Neurosurgery of the Russian Academy of Medical Sciences, Mahlon DeLong, Chair, Department of Neurology, Emory University, Atlanta, USA, Alim Louis Benabid, Chief, Neurosurgery Service, University of Joseph Fourrier, Grenoble, France, and the two undersigned. The workshop was conceived out of a desire to provide a forum for discussions of both basal ganglia-and motor thalamus-related issues by bringing together basic scientists and clinicians representing different disciplines, research directions, and philosophies. The primary goals were to encourage an exchange of information and ideas in an informal environment, to stimulate integration of the data from different disciplines, and to identifY controversial issues and the most essential questions to be addressed in future research.

Download or read book Functional Connections of Cortical Areas written by S. Murray Sherman and published by MIT Press. This book was released on 2013-08-09 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two leading authorities on thalamocortical connections consider how the neural circuits of the brain relate to our actions and perceptions. In this book, two leading authorities on the thalamus and its relationship to cortex build on their earlier findings to arrive at new ways of thinking about how the brain relates to the world, to cognition, and behavior. Based on foundations established earlier in their book Exploring the Thalamus and Its Role in Cortical Function, the authors consider the implications of these ground rules for thalamic inputs, thalamocortical connections, and cortical outputs. The authors argue that functional and structural analyses of pathways connecting thalamus and cortex point beyond these to lower centers and through them to the body and the world. Each cortical area depends on the messages linking it to body and world. These messages relate to the way we act and think; each cortical area receives thalamic inputs and has outputs to motor centers. Sherman and Guillery go on to discuss such topics as the role of branching axons that carry motor instructions as well as copies of these motor instructions for relay to cortex under the control of the thalamic gate. This gate allows the thalamus to control the passage of information on the basis of which cortex relates to the rest of the nervous system.

Download or read book Variations and Connections of the Human Thalamus written by John M. van Buren and published by Springer. This book was released on 2013-12-19 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past half century since the Vogts stimulated investigations on the anatomi cal relationships between cortex and subcortical structures, a voluminous literature has developed on the thalamus. Although much of this writing has been based upon studies of sub-human primates and carnivora, the prime goal of most investi gators has been to elucidate clinical experience. And indeed, these researches have enlightened the neurologist. From the beginning of anatomical studies of the thalamus, anatomists have sought a meaningful parcellation of the thalamus on the basis of both topography and cellular morphology. However, as the internal organization of the thalamus changes greatly in phylogeny, a topographical designation of thalamic divisions in different species loses its significance. Hence, the detailed descriptions of the nuclear configuration of carnivora, which appeared from the laboratories of Huber and Crosby, could not be readily applied to the thalamus of monkey or man. This has led to the introduction of different and more or less specific terminologies for each species rendering attempts at homologies difficult, if not impossible. Recogniz ing the changes in conceptualization of the thalamus and the advances in neuro anatomical knowledge, Dr. Van Buren has tackled the formidable tasks of bringing the thalamic nomenclature up to date. He has based his parcellation of the thala mus upon the histological morphology of the neuronal components, which are modified, to some extent at least, by the fiber tracts traversing the area.

Download or read book Cortical Function a View from the Thalamus written by V. A. Casagrande and published by Gulf Professional Publishing. This book was released on 2005-10-17 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Almost all of the messages that are received by the cerebral cortex from the environment or from the body's internal receptors come through the thalamus and much current thought about perceptual processing is based on sensory pathways that relay in the thalamus. This volume focuses on three major areas: the role of thalamocortical communication in cognition and attention; the role of the thalamus in communication between cortical areas; the hypothesis that much or all of the information relayed by thalamus, even to classical, pure "sensory" areas of cortex, represents a corollary message being sent simultaneously to motor centers. It presents a broad overview of important recent advances in these areas. * Provides a look at brain structures involved in perception and action * Includes summaries by leading investigators in the field * Presents recent advances in our understanding of brain functions

Download or read book Variations and Connections of the Human Thalamus Variations of the human diencephalon written by John M. Van Buren and published by Springer. This book was released on 1972 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Subthalamic and Thalamic Stereotactic Recordings and Stimulations in Patients with Intractable Epilepsy written by Heinz Gregor Wieser and published by John Libbey Eurotext. This book was released on 2008-02-01 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various subcortical structures in the brain are thought to be important in genesis or propagation of seizures. Deep Brain Stimulation (DBS) of these structures aims to influence these key “pacemaker” areas in the brain and is gaining increasing interest as a possible new surgical modality for treatment of patients with intractable epilepsy. Based on this background, this volume brings together the experience of the Zurich Epilepsy Surgery Center with stereotactic recordings and stimulations of various subcortical nuclei, with special reference to the Forel H fields, the thalamic nuclei and the periaqueductal gray matter. This volume also addresses the important issues of DC recording/polarisation and of biochemical measurement of excitatory and inhibitory transmitters released in the primary epileptogenic area during epileptic discharges. This book is destined to improve understanding of the involvement of subcortical structures in seizure genesis or propagation in a time when exhaustive invasive presurgical evaluation is diminishing because of the today’s availability of modern non-invasive imaging technique.