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Rhythmic activity in the gamma band (30-100Hz) has been observed in numerous animal species ranging from insects to humans, and in relation to a wide range of cognitive tasks. Various experimental and theoretical studies have investigated…

生物物理 · 物理学 2021-08-25 Gabi Socolovsky , Maoz Shamir

We consider a neural network with adapting synapses whose dynamics can be analitically computed. The model is made of $N$ neurons and each of them is connected to $K$ input neurons chosen at random in the network. The synapses are…

无序系统与神经网络 · 物理学 2009-10-30 G. Lattanzi , G. Nardulli , G. Pasquariello , S. Stramaglia

We study the storage and retrieval of phase-coded patterns as stable dynamical attractors in recurrent neural networks, for both an analog and a integrate-and-fire spiking model. The synaptic strength is determined by a learning rule based…

神经元与认知 · 定量生物学 2010-09-08 S. Scarpetta , A. de Candia , F. Giacco

Spike-timing-dependent plasticity (STDP) provides a biologically-plausible learning mechanism for spiking neural networks (SNNs); however, Hebbian weight updates in architectures with recurrent connections suffer from pathological weight…

神经与进化计算 · 计算机科学 2026-01-14 Andreas Massey , Aliaksandr Hubin , Stefano Nichele , Solve Sæbø

We analyse the storage and retrieval capacity in a recurrent neural network of spiking integrate and fire neurons. In the model we distinguish between a learning mode, during which the synaptic connections change according to a Spike-Timing…

神经元与认知 · 定量生物学 2012-10-29 Ferdinando Giacco , Silvia Scarpetta

Experimental data have revealed that neuronal connection efficacy exhibits two forms of short-term plasticity, namely, short-term depression (STD) and short-term facilitation (STF). They have time constants residing between fast neural…

神经元与认知 · 定量生物学 2015-03-19 C. C. Alan Fung , K. Y. Michael Wong , He Wang , Si Wu

This study explores the design and control of the behaviour of agents and robots using simple circuits of spiking neurons and Spike Timing Dependent Plasticity (STDP) as a mechanism of associative and unsupervised learning. Based on a…

机器人学 · 计算机科学 2015-09-25 Cristian Jimenez-Romero , David Sousa-Rodrigues , Jeffrey H. Johnson

Spike-timing-dependent plasticity(STDP) is a biological process in which the precise order and timing of neuronal spikes affect the degree of synaptic modification. While there have been numerous research focusing on the role of STDP in…

神经元与认知 · 定量生物学 2021-08-10 Hong-Gyu Yoon , Pilwon Kim

Compared with rate-based artificial neural networks, Spiking Neural Networks (SNN) provide a more biological plausible model for the brain. But how they perform supervised learning remains elusive. Inspired by recent works of Bengio et al.,…

神经与进化计算 · 计算机科学 2022-03-08 Zhanhao Hu , Tao Wang , Xiaolin Hu

Rhythmic activity has been associated with a wide range of cognitive processes. Previous studies have shown that spike-timing-dependent plasticity can facilitate the transfer of rhythmic activity downstream the information processing…

神经元与认知 · 定量生物学 2020-09-09 Nimrod Sherf , Maoz Shamir

We propose a new model based on the Ising model with the aim to study synaptic plasticity phenomena in neural networks. It is today well established in biology that the synapses or connections between certain types of neurons are…

无序系统与神经网络 · 物理学 2016-07-22 Eugene Pechersky , Guillem Via , Anatoly Yambartsev

Humans perform remarkably well in many cognitive tasks including pattern recognition. However, the neuronal mechanisms underlying this process are not well understood. Nevertheless, artificial neural networks, inspired in brain circuits,…

We propose a data-driven approach to represent neuronal network dynamics as a Probabilistic Graphical Model (PGM). Our approach learns the PGM structure by employing dimension reduction to network response dynamics evoked by stimuli applied…

神经元与认知 · 定量生物学 2017-11-02 Hexuan Liu , Jimin Kim , Eli Shlizerman

The collective dynamics of excitatory pulse coupled neural networks with spike timing dependent plasticity (STDP) is studied. Depending on the model parameters stationary states characterized by High or Low Synchronization can be observed.…

无序系统与神经网络 · 物理学 2015-04-14 Kaare Mikkelsen , Alberto Imparato , Alessandro Torcini

An essential step toward understanding neural circuits is linking their structure and their dynamics. In general, this relationship can be almost arbitrarily complex. Recent theoretical work has, however, begun to identify some broad…

神经元与认知 · 定量生物学 2017-03-10 Gabriel Koch Ocker , Yu Hu , Michael A. Buice , Brent Doiron , Krešimir Josić , Robert Rosenbaum , Eric Shea-Brown

Spiking networks that perform probabilistic inference have been proposed both as models of cortical computation and as candidates for solving problems in machine learning. However, the evidence for spike-based computation being in any way…

Discrete-time regulatory networks are dynamical systems on directed graphs, with a structure inspired on natural systems of interacting units. There is a natural notion of determination amongst vertices, which we use to classify the nodes…

适应与自组织系统 · 物理学 2009-11-13 Beatriz Luna , Edgardo Ugalde

Control is essential to the functioning of any neural system. Indeed, under healthy conditions the brain must be able to continuously maintain a tight functional control between the system's inputs and outputs. One may therefore hypothesise…

We present new theoretical foundations for unsupervised Spike-Timing-Dependent Plasticity (STDP) learning in spiking neural networks (SNNs). In contrast to empirical parameter search used in most previous works, we provide novel theoretical…

计算机视觉与模式识别 · 计算机科学 2022-02-23 Ali Safa , Ilja Ocket , André Bourdoux , Hichem Sahli , Francky Catthoor , Georges Gielen

This paper presents a constructive algorithm that achieves successful one-shot learning of hidden spike-patterns in a competitive detection task. It has previously been shown (Masquelier et al., 2008) that spike-timing-dependent plasticity…

神经元与认知 · 定量生物学 2017-08-31 Toby Lightheart , Steven Grainger , Tien-Fu Lu