AIMC Topic: Nerve Net

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Modeling mesoscopic cortical dynamics using a mean-field model of conductance-based networks of adaptive exponential integrate-and-fire neurons.

Journal of computational neuroscience Nov 15, 2017
Voltage-sensitive dye imaging (VSDi) has revealed fundamental properties of neocortical processing at macroscopic scales. Since for each pixel VSDi signals report the average membrane potential over hundreds of neurons, it seems natural to use a mean...
Neural Networks, Computer Animals Male Cerebral Cortex Nerve Net Photic Stimulation Macaca mulatta Models, Neurological Neurons Nonlinear Dynamics Synapses Membrane Potentials Voltage-Sensitive Dye Imaging
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Beyond modularity: Fine-scale mechanisms and rules for brain network reconfiguration.

NeuroImage Nov 11, 2017
The human brain is in constant flux, as distinct areas engage in transient communication to support basic behaviors as well as complex cognition. The collection of interactions between cortical and subcortical areas forms a functional brain network w...
Male Unsupervised Machine Learning Middle Aged Brain Models, Theoretical Connectome Magnetic Resonance Imaging Nerve Net Humans Female Executive Function Young Adult Adult
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The role of neuron-glia interactions in the emergence of ultra-slow oscillations.

Biological cybernetics Nov 11, 2017
Ultra-slow cortical oscillatory activity of 1-100 mHz has been recorded in human by electroencephalography and in dissociated cultures of cortical rat neurons, but the underlying mechanisms remain to be elucidated. This study presents a computational...
Time Factors Rats, Wistar Rats Action Potentials Neural Networks, Computer Algorithms Cells, Cultured Animals Synapses Cerebral Cortex Nerve Net Neuroglia Models, Biological Cell Communication Neurons Embryo, Mammalian
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Enhanced storage capacity with errors in scale-free Hopfield neural networks: An analytical study.

PloS one Oct 27, 2017
The Hopfield model is a pioneering neural network model with associative memory retrieval. The analytical solution of the model in mean field limit revealed that memories can be retrieved without any error up to a finite storage capacity of O(N), whe...
Memory Neural Networks, Computer Models, Theoretical Nerve Net
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Improved Perceptual Learning by Control of Extracellular GABA Concentration by Astrocytic Gap Junctions.

Neural computation Oct 24, 2017
Learning of sensory cues is believed to rely on synchronous pre- and postsynaptic neuronal firing. Evidence is mounting that such synchronicity is not merely caused by properties of the underlying neuronal network but could also depend on the integri...
GABA Plasma Membrane Transport Proteins Nerve Net Gap Junctions Membrane Potentials Animals Models, Neurological Extracellular Fluid Astrocytes Neurons Nonlinear Dynamics Perception Neural Networks, Computer gamma-Aminobutyric Acid Learning
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Stimulus-induced transitions between spike-wave discharges and spindles with the modulation of thalamic reticular nucleus.

Journal of computational neuroscience Sep 22, 2017
It is believed that thalamic reticular nucleus (TRN) controls spindles and spike-wave discharges (SWD) in seizure or sleeping processes. The dynamical mechanisms of spatiotemporal evolutions between these two types of activity, however, are not well ...
Neural Networks, Computer Computer Simulation Animals Models, Neurological Humans Electric Stimulation Neural Inhibition Intralaminar Thalamic Nuclei Action Potentials Neurons Nonlinear Dynamics Nerve Net
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Functional neural networks of honesty and dishonesty in children: Evidence from graph theory analysis.

Scientific reports Sep 21, 2017
The present study examined how different brain regions interact with each other during spontaneous honest vs. dishonest communication. More specifically, we took a complex network approach based on the graph-theory to analyze neural response data whe...
Analysis of Variance Nerve Net Humans Male Neural Networks, Computer Child Brain Models, Neurological Female Deception
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Synaptic convergence regulates synchronization-dependent spike transfer in feedforward neural networks.

Journal of computational neuroscience Sep 12, 2017
Correlated neural activities such as synchronizations can significantly alter the characteristics of spike transfer between neural layers. However, it is not clear how this synchronization-dependent spike transfer can be affected by the structure of ...
Normal Distribution Synaptic Transmission Neurons Synapses Nerve Net Humans Neural Networks, Computer Computer Simulation Animals Models, Neurological Action Potentials
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Relationship between neuronal network architecture and naming performance in temporal lobe epilepsy: A connectome based approach using machine learning.

Brain and language Sep 9, 2017
Impaired confrontation naming is a common symptom of temporal lobe epilepsy (TLE). The neurobiological mechanisms underlying this impairment are poorly understood but may indicate a structural disorganization of broadly distributed neuronal networks ...
Humans Machine Learning Retrospective Studies Language Female Adult Diffusion Tensor Imaging Temporal Lobe Male Connectome Middle Aged Epilepsy, Temporal Lobe Semantics Nerve Net Comprehension Memory
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Nano-topography Enhances Communication in Neural Cells Networks.

Scientific reports Aug 29, 2017
Neural cells are the smallest building blocks of the central and peripheral nervous systems. Information in neural networks and cell-substrate interactions have been heretofore studied separately. Understanding whether surface nano-topography can dir...
Microscopy, Atomic Force Neural Networks, Computer Female Cell Communication Nerve Net Animals Neurons Cells, Cultured Mice Calcium Pregnancy Microscopy, Fluorescence Molecular Imaging
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