Synaptic Resurgence

Synaptic Resurgence PDF Author: Rick Anthony
Publisher: Rick Anthony
ISBN:
Category : Fiction
Languages : en
Pages : 119

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Book Description
In a world teetering on the edge of collapse, where power is concentrated in the hands of the few and humanity is at the mercy of manipulative forces, "Synaptic Resurgence" invites you on an exhilarating journey into a future transformed by advanced neural technology and the unyielding spirit of resistance. In this gripping sci-fi thriller, we follow the remarkable journey of Emma Collins, a brilliant neuroscientist haunted by a tragic past. The discovery of a revolutionary neural implant called the "Synapse X" unveils a realm of possibilities—a seamless connection between human minds and artificial intelligence that promises to enhance cognitive abilities beyond imagination. But the true potential of this groundbreaking technology reaches far beyond mere augmentation. As governments, corporations, and underground organizations vie for control over the immense power of the Synapse X, Emma finds herself thrust into a perilous game of cat and mouse. Betrayed by those she thought she could trust, she must navigate a treacherous landscape of intrigue and deceit to evade capture and uncover the truth. Along the way, she forges an unlikely alliance with a rogue hacker and a group of rebels fighting against the oppressive forces seeking to harness the implant's power for their own gain.

Synaptic Resurgence

Synaptic Resurgence PDF Author: Rick Anthony
Publisher: Rick Anthony
ISBN:
Category : Fiction
Languages : en
Pages : 119

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Book Description
In a world teetering on the edge of collapse, where power is concentrated in the hands of the few and humanity is at the mercy of manipulative forces, "Synaptic Resurgence" invites you on an exhilarating journey into a future transformed by advanced neural technology and the unyielding spirit of resistance. In this gripping sci-fi thriller, we follow the remarkable journey of Emma Collins, a brilliant neuroscientist haunted by a tragic past. The discovery of a revolutionary neural implant called the "Synapse X" unveils a realm of possibilities—a seamless connection between human minds and artificial intelligence that promises to enhance cognitive abilities beyond imagination. But the true potential of this groundbreaking technology reaches far beyond mere augmentation. As governments, corporations, and underground organizations vie for control over the immense power of the Synapse X, Emma finds herself thrust into a perilous game of cat and mouse. Betrayed by those she thought she could trust, she must navigate a treacherous landscape of intrigue and deceit to evade capture and uncover the truth. Along the way, she forges an unlikely alliance with a rogue hacker and a group of rebels fighting against the oppressive forces seeking to harness the implant's power for their own gain.

The Role of Synaptic Tagging and Capture for Memory Dynamics in Spiking Neural Networks

The Role of Synaptic Tagging and Capture for Memory Dynamics in Spiking Neural Networks PDF Author: Jannik Luboeinski
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 201

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Book Description
Memory serves to process and store information about experiences such that this information can be used in future situations. The transfer from transient storage into long-term memory, which retains information for hours, days, and even years, is called consolidation. In brains, information is primarily stored via alteration of synapses, so-called synaptic plasticity. While these changes are at first in a transient early phase, they can be transferred to a late phase, meaning that they become stabilized over the course of several hours. This stabilization has been explained by so-called synaptic tagging and capture (STC) mechanisms. To store and recall memory representations, emergent dynamics arise from the synaptic structure of recurrent networks of neurons. This happens through so-called cell assemblies, which feature particularly strong synapses. It has been proposed that the stabilization of such cell assemblies by STC corresponds to so-called synaptic consolidation, which is observed in humans and other animals in the first hours after acquiring a new memory. The exact connection between the physiological mechanisms of STC and memory consolidation remains, however, unclear. It is equally unknown which influence STC mechanisms exert on further cognitive functions that guide behavior. On timescales of minutes to hours (that means, the timescales of STC) such functions include memory improvement, modification of memories, interference and enhancement of similar memories, and transient priming of certain memories. Thus, diverse memory dynamics may be linked to STC, which can be investigated by employing theoretical methods based on experimental data from the neuronal and the behavioral level. In this thesis, we present a theoretical model of STC-based memory consolidation in recurrent networks of spiking neurons, which are particularly suited to reproduce biologically realistic dynamics. Furthermore, we combine the STC mechanisms with calcium dynamics, which have been found to guide the major processes of early-phase synaptic plasticity in vivo. In three included research articles as well as additional sections, we develop this model and investigate how it can account for a variety of behavioral effects. We find that the model enables the robust implementation of the cognitive memory functions mentioned above. The main steps to this are: 1. demonstrating the formation, consolidation, and improvement of memories represented by cell assemblies, 2. showing that neuromodulator-dependent STC can retroactively control whether information is stored in a temporal or rate-based neural code, and 3. examining interaction of multiple cell assemblies with transient and attractor dynamics in different organizational paradigms. In summary, we demonstrate several ways by which STC controls the late-phase synaptic structure of cell assemblies. Linking these structures to functional dynamics, we show that our STC-based model implements functionality that can be related to long-term memory. Thereby, we provide a basis for the mechanistic explanation of various neuropsychological effects. Keywords: synaptic plasticity; synaptic tagging and capture; spiking recurrent neural networks; memory consolidation; long-term memory

Synaptic Plasticity and Transsynaptic Signaling

Synaptic Plasticity and Transsynaptic Signaling PDF Author: Patric K. Stanton
Publisher: Springer Science & Business Media
ISBN: 0387254439
Category : Medical
Languages : en
Pages : 554

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Book Description
Brain functions are realized by the activity of neuronal networks composed of a huge number of neurons. The efficiency of information transfer within the networks is changeable. Even the networks themselves can change through experience. Information transfer between neurons is performed at the synapse (the site of the neurons’ contact) by release of neurotransmitters from the pre-synaptic cell and capture of neurotransmitters by the post-synaptic cell. The amount of released neurotransmitter or the efficacy of capture can change. Moreover, synapses are found to be newly formed upon activity or abandoned upon inactivity. These changes are called "synaptic plasticity". This text focuses on one component of synaptic plasticity called transsynaptic signaling, or communication of synapses during their formation.

Synaptic Tagging and Capture

Synaptic Tagging and Capture PDF Author: Sreedharan Sajikumar
Publisher: Springer Nature
ISBN: 3031548647
Category :
Languages : en
Pages : 507

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Book Description


Advances in Synaptic Plasticity

Advances in Synaptic Plasticity PDF Author: M. Baudry
Publisher: MIT Press
ISBN: 9780262024600
Category : Neuroplasticity
Languages : en
Pages : 368

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Book Description
This book, a follow-up to the editors' Synaptic Plasticity (MIT Press,1993), reports on the most recent trends in the field. The levels of analysis range from molecular to cellular and network, the unifying theme being the nature of the relationships between synaptic plasticity and information processing and storage. Many neurons exhibit plasticity; that is, they can change structurally or functionally, often in a lasting way. Plasticity is evident in such diverse phenomena as learning and memory, brain development, drug tolerance, sprouting of axon terminals after a brain lesion, and various cellular forms of activity-dependent synaptic plasticity such as long-term potentiation and long-term depression. This book, a follow-up to the editors' Synaptic Plasticity (MIT Press, 1993), reports on the most recent trends in the field. The levels of analysis range from molecular to cellular and network, the unifying theme being the nature of the relationships between synaptic plasticity and information processing and storage. Contributors Yael Amitai, Michel Baudry, Theodore W. Berger, Pierre-Alain Buchs, A.K. Butler, Franck A. Chaillan, Gilbert A. Chauvet, Marie-Françoise Chesselet, Barry W. Connors, Taraneh Ghaffari, Jay R. Gibson, Ziv Gil, Michel Khrestchatisky, Dietmar Kuhl, Carole E. Landisman, Gilles Laurent, Jim-Shih Liaw, David J. Linden, Katrina MacLeod, Henry Markram, W.V. Morehouse, Dominique Muller, J.A. Napieralski, Santiago Rivera, François S. Roman, Bernard Soumireu-Mourat, Oswald Steward, Mark Stopfer, F.G. Szele, Richard F. Thompson, Nicolas Toni, Bernard Truchet, Misha Tsodyks, K. Uryu, Ascher Uziel, Christopher S. Wallace, Yun Wang, Michael Wehr, Paul F. Worley, Xiaping Xie

Synaptic Plasticity

Synaptic Plasticity PDF Author: Michael R. Kreutz
Publisher: Springer Science & Business Media
ISBN: 3709109310
Category : Medical
Languages : en
Pages : 611

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Book Description
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.

Synaptic Modification, Neuron Selectivity, and Nervous System Organization

Synaptic Modification, Neuron Selectivity, and Nervous System Organization PDF Author: William B. Levy
Publisher: Psychology Press
ISBN: 1317768973
Category : Psychology
Languages : en
Pages : 367

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Book Description
First published in 1985. This is a collection of essays presenting various theoretical ideas concerning distributive memories and cortical models. In addition, it includes a discussion of how a central set of assumptions can explain much of what is now known about deprivation and normal development of visual cortex and can perhaps also serve as the basis for a theory of higher nervous system organization as well as the Changeux model of how a synapse can modify itself.

Synaptic Plasticity

Synaptic Plasticity PDF Author: M. Baudry
Publisher: MIT Press
ISBN: 9780262023597
Category : Neuroplasticity
Languages : en
Pages : 292

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Book Description
An up-to-date overview of the current status of research on the full scope of synaptic plasticity, including synaptic remodeling in response to damage, long-term depression and long-term potentiation, and learning and memory.Synaptic Plasticity presents an up-to-date overview of the current status of research on the full scope of synaptic plasticity, including synaptic remodeling in response to damage, long-term depression and long-term potentiation, and learning and memory. The contributions are written by leading experts in the field and cover approaches from biochemical, anatomical, physiological, behavioral, and computational levels. They offer hypotheses concerning the molecular and cellular mechanisms that are responsible for the various manifestations of synaptic plasticity and propose models explaining how these cellular events can be linked to the functional and behavioral expressions of these adaptive principles. ContentsIntroduction - Molecular Correlates of Activity-dependent Development and Synaptic Plasticity, S. Hockfield - Molecular Sorting in Neurons, 0. Steward - Molecular and Morphological Responses to Deafferentation in Rodents, C. E. Finch, T. H. McNeill - Forms of Long-term Potentiation Induced by NMDA and Non-NMDA Receptor Activation, T. Teyler, L. Grover - Long-term Potentiation: Biochemical Mechanisms, M. Baudry, G. Lynch - Cerebellar Mechanisms of Long-Term Depression, M. Ito - Long-term Depression: Related Mechanisms in Cerebellum, Neocortex, and Hippocampus, A. Artola, W. Singer - Theory of Synaptic Plasticity in Visual Cortex, N. Intrator, M. F. Bear, L. N. Cooper, M. A. Paradiso - A Theoretical and Experimental Strategy for Realizing a Biologically Based Model of the Hippocampus, T. W. Berger et al - Synaptic Plasticity, Learning, and Memory, S. P. Rose - Synaptic Plasticity and Memory Storage, R. F. Thompson et al

Synaptic Modifications and Memory

Synaptic Modifications and Memory PDF Author: Leon L. Voronin
Publisher: Springer Science & Business Media
ISBN: 3642476155
Category : Medical
Languages : en
Pages : 315

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Book Description
Understanding of memory and learning is one of the major goals of neuroscientists and psychologists. The author first introduces the reader into the current state of knowledge of the mechanisms underlying memory by providing extensive reviews of contemporary results including behavioural approaches and molecular studies. He presents results of his group obtained by analysing elec- trical activity - including single neuron meassures. As a major experimental model the phenomenon of hippocampal long- term potentiation was studied. The so-called quantal analy- sis - a quantitative method - was applied to study mammalian brain plasticity. Short- and long-term synaptic plasticities were registered both in vivo and in vitro mammalian brain preparations. Results show the involvement of mainly presynaptic location in memory, however, the possible involvement of postsynaptic mechanisms is indicated by changes in quantal amplitude as shown by the author.

Synaptic Plasticity

Synaptic Plasticity PDF Author: Thomas Heinbockel
Publisher: BoD – Books on Demand
ISBN: 9535132334
Category : Medical
Languages : en
Pages : 224

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Book Description
Nerve cells form thousands of contact points, the synapses, to communicate information with other neurons and target cells. Synapses are sites for changes in brain function through modification of synaptic transmission termed synaptic plasticity. The study of synaptic plasticity has flourished over the years with the advancement of technical breakthroughs and is a timely scientific endeavor today just like it was several decades ago. This book contributes to our understanding of synaptic plasticity at the molecular, biochemical, and cellular systems and behavioral level and informs the reader about its clinical relevance. The book contains ten chapters in three sections: (1) "Mechanisms of Synaptic Plasticity," (2) "Neural Plasticity," and (3) "Plasticity and Neurological Diseases." The book provides detailed and current reviews in these different areas written by experts in their respective fields. The mechanisms of synaptic plasticity and its relation to neurological diseases are featured prominently as a recurring theme throughout most chapters. This book will be most useful for neuroscientists and other scientists alike and will contribute to the training of current and future students who find the plastic nervous system as fascinating as many generations before them.