AIMC Topic: Neuronal Plasticity

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Unsupervised Learning in an Ensemble of Spiking Neural Networks Mediated by ITDP.

PLoS computational biology Oct 19, 2016
We propose a biologically plausible architecture for unsupervised ensemble learning in a population of spiking neural network classifiers. A mixture of experts type organisation is shown to be effective, with the individual classifier outputs combine...
Neuronal Plasticity Models, Neurological Action Potentials Neural Networks, Computer Computer Simulation Animals Nerve Net Pattern Recognition, Physiological Unsupervised Machine Learning Biological Clocks Humans Neurons Pattern Recognition, Automated
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Developmental metaplasticity in neural circuit codes of firing and structure.

Neural networks : the official journal of the International Neural Network Society Sep 30, 2016
Firing-rate dynamics have been hypothesized to mediate inter-neural information transfer in the brain. While the Hebbian paradigm, relating learning and memory to firing activity, has put synaptic efficacy variation at the center of cortical plastici...
Neural Networks, Computer Brain Animals Humans Neurons Synapses Neuronal Plasticity Models, Neurological
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Spike-timing-dependent plasticity enhanced synchronization transitions induced by autapses in adaptive Newman-Watts neuronal networks.

Bio Systems Sep 22, 2016
In this paper, we numerically study the effect of spike-timing-dependent plasticity (STDP) on synchronization transitions induced by autaptic activity in adaptive Newman-Watts Hodgkin-Huxley neuron networks. It is found that synchronization transitio...
Neural Networks, Computer Neuronal Plasticity Action Potentials Nerve Net Cortical Synchronization Humans
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Demonstrating Hybrid Learning in a Flexible Neuromorphic Hardware System.

IEEE transactions on biomedical circuits and systems Sep 9, 2016
We present results from a new approach to learning and plasticity in neuromorphic hardware systems: to enable flexibility in implementable learning mechanisms while keeping high efficiency associated with neuromorphic implementations, we combine a ge...
Machine Learning Neuronal Plasticity Models, Neurological Neural Networks, Computer Neurons Synapses
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A neuromorphic model of motor overflow in focal hand dystonia due to correlated sensory input.

Journal of neural engineering Aug 31, 2016
OBJECTIVE: Motor overflow is a common and frustrating symptom of dystonia, manifested as unintentional muscle contraction that occurs during an intended voluntary movement. Although it is suspected that motor overflow is due to cortical disorganizati...
Efferent Pathways Dystonic Disorders Hand Electromyography Synapses Sensation Fingers Evoked Potentials Neuronal Plasticity Models, Neurological Muscle, Skeletal Neural Networks, Computer Algorithms Humans
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Functional Relevance of Different Basal Ganglia Pathways Investigated in a Spiking Model with Reward Dependent Plasticity.

Frontiers in neural circuits Jul 21, 2016
The brain enables animals to behaviorally adapt in order to survive in a complex and dynamic environment, but how reward-oriented behaviors are achieved and computed by its underlying neural circuitry is an open question. To address this concern, we ...
Neural Pathways Neuronal Plasticity Humans Reinforcement, Psychology Parkinson Disease Basal Ganglia Neural Networks, Computer Reward
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Quadrupedal Robot Locomotion: A Biologically Inspired Approach and Its Hardware Implementation.

Computational intelligence and neuroscience Jun 29, 2016
A bioinspired locomotion system for a quadruped robot is presented. Locomotion is achieved by a spiking neural network (SNN) that acts as a Central Pattern Generator (CPG) producing different locomotion patterns represented by their raster plots. To ...
Action Potentials Humans Robotics Neural Networks, Computer Neurons Locomotion Artificial Intelligence Computer Simulation Neuronal Plasticity Models, Neurological
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Organic core-sheath nanowire artificial synapses with femtojoule energy consumption.

Science advances Jun 17, 2016
Emulation of biological synapses is an important step toward construction of large-scale brain-inspired electronics. Despite remarkable progress in emulating synaptic functions, current synaptic devices still consume energy that is orders of magnitud...
Electronics Neural Networks, Computer Neuronal Plasticity Nanotechnology Models, Neurological Nanowires Transistors, Electronic Electrical Synapses
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Reaction-diffusion-like formalism for plastic neural networks reveals dissipative solitons at criticality.

Physical review. E Jun 6, 2016
Self-organized structures in networks with spike-timing dependent synaptic plasticity (STDP) are likely to play a central role for information processing in the brain. In the present study we derive a reaction-diffusion-like formalism for plastic fee...
Neural Networks, Computer Computer Simulation Learning Neuronal Plasticity Models, Neurological Action Potentials
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Dynamic cerebral reorganization in the pathophysiology of schizophrenia: a MRI-derived cortical thickness study.

Psychological medicine May 26, 2016
BACKGROUND: A structural neuroanatomical change indicating a reduction in brain tissue is a notable feature of schizophrenia. Several pathophysiological processes such as aberrant cortical maturation, progressive tissue loss and compensatory tissue i...
Neuronal Plasticity Schizophrenia Cerebral Cortex Time Factors Support Vector Machine Magnetic Resonance Imaging Male Disease Progression Young Adult Adult Sensitivity and Specificity Humans Female
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