Optogenetic Reverse-engineering of Brain Sleep/wake Circuitry

Optogenetic Reverse-engineering of Brain Sleep/wake Circuitry PDF Author: Matthew Evan Carter
Publisher: Stanford University
ISBN:
Category :
Languages : en
Pages : 148

Get Book Here

Book Description
The neural control of sleep and wakefulness depends upon a complex and partially defined balance between subcortical excitatory and inhibitory populations in the brain. Wake-active neurons include hypocretin (Hcrt)-containing neurons in the lateral hypothalamus and noradrenergic neurons that make up the brainstem locus coeruleus (LC). Experimentally determining a causal role for these neurons in promoting and maintaining wakefulness has remained elusive using traditional pharmacological and electrical techniques due to their small size, unique morphology, and proximity to heterogeneous neuronal and non-neuronal cell types. The recent development of optogenetic technology provides a toolkit of genetically-encodable, millisecond timescale, stimulation and inhibition probes that can be targeted to specific cell types with no toxicity to the cells under investigation. This dissertation discusses the application of optogenetic tools to questions about sleep/wake circuitry and uses these tools to study Hcrt and LC neurons, both individually and in combination.

Optogenetic Reverse-engineering of Brain Sleep/wake Circuitry

Optogenetic Reverse-engineering of Brain Sleep/wake Circuitry PDF Author: Matthew Evan Carter
Publisher: Stanford University
ISBN:
Category :
Languages : en
Pages : 148

Get Book Here

Book Description
The neural control of sleep and wakefulness depends upon a complex and partially defined balance between subcortical excitatory and inhibitory populations in the brain. Wake-active neurons include hypocretin (Hcrt)-containing neurons in the lateral hypothalamus and noradrenergic neurons that make up the brainstem locus coeruleus (LC). Experimentally determining a causal role for these neurons in promoting and maintaining wakefulness has remained elusive using traditional pharmacological and electrical techniques due to their small size, unique morphology, and proximity to heterogeneous neuronal and non-neuronal cell types. The recent development of optogenetic technology provides a toolkit of genetically-encodable, millisecond timescale, stimulation and inhibition probes that can be targeted to specific cell types with no toxicity to the cells under investigation. This dissertation discusses the application of optogenetic tools to questions about sleep/wake circuitry and uses these tools to study Hcrt and LC neurons, both individually and in combination.

Charney & Nestler's Neurobiology of Mental Illness

Charney & Nestler's Neurobiology of Mental Illness PDF Author: Dennis S. Charney
Publisher: Oxford University Press
ISBN: 019068142X
Category : Medical
Languages : en
Pages : 1025

Get Book Here

Book Description
In the years following publication of the DSM-5(R), the field of psychiatry has seen vigorous debate between the DSM's more traditional, diagnosis-oriented approach and the NIMH's more biological, dimension-based RDoC (research domain criteria) approach. Charney & Nestler's Neurobiology of Mental Illness is an authoritative foundation for translating information from the laboratory to clinical treatment, and its fifth edition extends beyond this reference function to acknowledge and examine the controversies, different camps, and thoughts on the future of psychiatric diagnosis. In this wider context, this book provides information from numerous levels of analysis, including molecular biology and genetics, cellular physiology, neuroanatomy, neuropharmacology, epidemiology, and behavior. Sections and chapters are edited and authored by experts at the top of their fields. No other book distills the basic science and underpinnings of mental disorders-and highlights practical clinical significance-to the scope and breadth of this classic text. In this edition, Section 1, which reviews the methods used to examine the biological basis of mental illness in animal and cell models and in humans, has been expanded to reflect critically important technical advances in complex genetics (including powerful sequencing technologies and related bioinformatics), epigenetics, stem cell biology, optogenetics, neural circuit functioning, cognitive neuroscience, and brain imaging. This range of established and emerging methodologies offer groundbreaking advances in our ability to study the brain as well as unique opportunities for the translation of preclinical and clinical research into badly needed breakthroughs in our therapeutic toolkit. Sections 2 through 7 cover the neurobiology and genetics of major psychiatric disorders: psychoses (including bipolar disorder), mood disorders, anxiety disorders, substance use disorders, dementias, and disorders of childhood onset. Also covered within these sections is a summary of current therapeutic approaches for these illnesses as well as the ways in which research advances are now guiding the search for new treatments. Each of these parts has been augmented in several different areas as a reflection of research progress. The last section, Section 8, reconfigured in this new edition, now focuses on diagnostic schemes for mental illness. This includes an overview of the unique challenges that remain in diagnosing these disorders given our still limited knowledge of disease etiology and pathophysiology. The section then provides reviews of DSM-5(R), which forms the basis of psychiatric diagnosis in the United States for all clinical work, and of RDoC, which provides an alternative perspective on diagnosis in heavy use in the research community. Also included are chapters on future efforts toward precision and computational psychiatry, which promise to someday align diagnosis with underlying biological abnormalities.

The Orexin System. Basic Science and Role in Sleep Pathology

The Orexin System. Basic Science and Role in Sleep Pathology PDF Author: M.A. Steiner
Publisher: Karger Medical and Scientific Publishers
ISBN: 3318068446
Category : Health & Fitness
Languages : en
Pages : 165

Get Book Here

Book Description
The orexin system, discovered in 1998, has emerged as a crucial player in regulating the sleep and wake balance inside our brain. This discovery has sparked a burst of novel and dynamic research on the physiology and pathology of sleep. The Orexin System: Basic Science and Role in Sleep Pathology honors this research and the authors share their ideas and perspectives on the novel developments within the field. The book examines the intricate role of the orexin system in regulating sleep and wake, and its interaction with other wake-regulating systems. The orexin system is dissected at the cellular and molecular level to explore the diversity of the orexin-producing neurons, their projections, and their signaling pathways. Additionally, the book discusses the diseases which are associated with a dysfunctional orexin system, such as narcolepsy, insomnia, substance abuse, and Alzheimer’s disease, and explores the new potential therapeutic applications derived from the burst of research around this fascinating system. This publication is essential reading for neurobiologists, neurologists, psychopharmacologists, sleep researchers, and other researchers and clinical scientists interested in sleep, sleep research, insomnia, and medicine in general.

Neural Circuits of Innate Behaviors

Neural Circuits of Innate Behaviors PDF Author: Hao Wang
Publisher: Springer Nature
ISBN: 9811570868
Category : Medical
Languages : en
Pages : 118

Get Book Here

Book Description
This book summarizes the latest research findings in the neurocircuitry of innate behaviors, covering major topics such as innate fear, aggression, feeding, reward, social interaction, parental care, spatial navigation, and sleep-wake regulation. For decades, humans have been fascinated by wild animals’ instincts, like the annual two-thousand-mile migration of the monarch butterfly in North American, and the “imprint” behavior of newborn birds. Since these instincts are always displayed in stereotypical patterns in most individuals of a given species, the neural circuits processing such behaviors must be genetically hard-wired in the brain. Recently, with the development of modern techniques, including optogenetics, retrograde and anterograde virus tracing, and in vivo calcium imaging, researchers have been able to determine and dissect the specific neural circuits for many innate behaviors by selectively manipulating well-defined cell types in the brain. This book discusses recent advances in the investigation of the neural-circuit mechanisms underlying innate behaviors.

Serotonin and Sleep: Molecular, Functional and Clinical Aspects

Serotonin and Sleep: Molecular, Functional and Clinical Aspects PDF Author: Jaime M. Monti
Publisher: Springer Science & Business Media
ISBN: 3764385618
Category : Medical
Languages : en
Pages : 627

Get Book Here

Book Description
This book focuses on the neuropsychopharmacology of serotonin and its role in sleep and wakefulness, presenting neurochemical, electrophysiological, and neuropharmacological approaches to understand the mechanisms of serotonin and related substances. Covering core and contemporary topics in the area, this volume is valuable for all researchers interested in interdisciplinary studies concerning drugs affecting the central nervous system.

Philosophy and Neuroscience

Philosophy and Neuroscience PDF Author: J. Bickle
Publisher: Springer Science & Business Media
ISBN: 9781402073946
Category : Psychology
Languages : en
Pages : 256

Get Book Here

Book Description
Philosophy and Neuroscience: A Ruthlessly Reductive Account is the first book-length treatment of philosophical issues and implications in current cellular and molecular neuroscience. John Bickle articulates a philosophical justification for investigating "lower level" neuroscientific research and describes a set of experimental details that have recently yielded the reduction of memory consolidation to the molecular mechanisms of long-term potentiation (LTP). These empirical details suggest answers to recent philosophical disputes over the nature and possibility of psycho-neural scientific reduction, including the multiple realization challenge, mental causation, and relations across explanatory levels. Bickle concludes by examining recent work in cellular neuroscience pertaining to features of conscious experience, including the cellular basis of working memory, the effects of explicit selective attention on single-cell activity in visual cortex, and sensory experiences induced by cortical microstimulation.

How Brain Arousal Mechanisms Work

How Brain Arousal Mechanisms Work PDF Author: Donald Pfaff
Publisher: Cambridge University Press
ISBN: 1108433332
Category : Medical
Languages : en
Pages : 173

Get Book Here

Book Description
A succinct, neurobiological explanation of the pathways that 'wake up the brain' from deep anesthesia, sleep and brain injury.

Make Life Visible

Make Life Visible PDF Author: Yoshiaki Toyama
Publisher: Springer Nature
ISBN: 9811379084
Category : Medical
Languages : en
Pages : 285

Get Book Here

Book Description
This open access book describes marked advances in imaging technology that have enabled the visualization of phenomena in ways formerly believed to be completelyimpossible. These technologies have made major contributions to the elucidation of the pathology of diseases as well as to their diagnosis and therapy. The volume presents various studies from molecular imaging to clinical imaging. It also focuses on innovative, creative, advanced research that gives full play to imaging technology inthe broad sense, while exploring cross-disciplinary areas in which individual research fields interact and pursuing the development of new techniques where they fuse together. The book is separated into three parts, the first of which addresses the topic of visualizing and controlling molecules for life. Th e second part is devoted to imaging of disease mechanisms, while the final part comprises studies on the application of imaging technologies to diagnosis and therapy. Th e book contains the proceedings of the 12th Uehara International Symposium 2017, “Make Life Visible” sponsored by the Uehara Memorial Foundation and held from June 12 to 14, 2017. It is written by leading scientists in the field and is an open access publication under a CC BY 4.0 license.

Neural Circuitry of Behavioral Flexibility: Dopamine and Related Systems

Neural Circuitry of Behavioral Flexibility: Dopamine and Related Systems PDF Author: Gregory B. Bissonette
Publisher: Frontiers Media SA
ISBN: 2889197956
Category : Neurosciences. Biological psychiatry. Neuropsychiatry
Languages : en
Pages : 167

Get Book Here

Book Description
Decades of research have identified a role for dopamine neurotransmission in prefrontal cortical function and flexible cognition. Abnormal dopamine neurotransmission underlies many cases of cognitive dysfunction. New techniques using optogenetics have allowed for ever more precise functional segregation of areas within the prefrontal cortex, which underlie separate cognitive functions. Learning theory predictions have provided a very useful framework for interpreting the neural activity of dopamine neurons, yet even dopamine neurons present a range of responses, from salience to prediction error signaling. The functions of areas like the Lateral Habenula have been recently described, and its role, presumed to be substantial, is largely unknown. Many other neural systems interact with the dopamine system, like cortical GABAergic interneurons, making it critical to understand those systems and their interactions with dopamine in order to fully appreciate dopamine•s role in flexible behavior. Advances in human clinical research, like exome sequencing, are driving experimental hypotheses which will lead to fruitful new research directions, but how do (or should?) these clinical findings inform basic research? Following new information from these techniques, we may begin to develop a fresh understanding of human disease states which will inform novel treatment possibilities. However, we need an operational framework with which to interpret these new findings. Therefore, the purpose of this Research Topic is to integrate what we know of dopamine, the prefrontal cortex and flexible behavior into a clear framework, which will illuminate clear, testable directions for future research.

Feedback Systems

Feedback Systems PDF Author: Karl Johan Åström
Publisher: Princeton University Press
ISBN: 069121347X
Category : Technology & Engineering
Languages : en
Pages :

Get Book Here

Book Description
The essential introduction to the principles and applications of feedback systems—now fully revised and expanded This textbook covers the mathematics needed to model, analyze, and design feedback systems. Now more user-friendly than ever, this revised and expanded edition of Feedback Systems is a one-volume resource for students and researchers in mathematics and engineering. It has applications across a range of disciplines that utilize feedback in physical, biological, information, and economic systems. Karl Åström and Richard Murray use techniques from physics, computer science, and operations research to introduce control-oriented modeling. They begin with state space tools for analysis and design, including stability of solutions, Lyapunov functions, reachability, state feedback observability, and estimators. The matrix exponential plays a central role in the analysis of linear control systems, allowing a concise development of many of the key concepts for this class of models. Åström and Murray then develop and explain tools in the frequency domain, including transfer functions, Nyquist analysis, PID control, frequency domain design, and robustness. Features a new chapter on design principles and tools, illustrating the types of problems that can be solved using feedback Includes a new chapter on fundamental limits and new material on the Routh-Hurwitz criterion and root locus plots Provides exercises at the end of every chapter Comes with an electronic solutions manual An ideal textbook for undergraduate and graduate students Indispensable for researchers seeking a self-contained resource on control theory