Results 81 to 90 of about 40,549 (223)

Research on the Spiking Dynamics and Controlled Transmission of Semiconductor Ring Laser Photonic Neurons

IEEE Access
In this paper, we conduct a comprehensive numerical study on the spiking dynamics characteristics and communication between unidirectionally coupled photonic neurons based on semiconductor ring lasers (SRLs).
Xueting Zhang, Penghua Mu, Junyan Tao, Ningfei Dong   +3 more
doaj   +1 more source

Contribution of LFP dynamics to single neuron spiking variability in motor cortex during movement execution

Frontiers in Systems Neuroscience, 2015
Understanding the sources of variability in single-neuron spiking responses is an important open problem for the theory of neural coding. This variability is thought to result primarily from spontaneous collective dynamics in neuronal networks.
Michael Everett Rule, Carlos eVargas-Irwin, John P. Donoghue, Wilson eTruccolo   +3 more
doaj   +1 more source

Near‐Infrared Light‐Programmable Negative Differential Transconductance in Organic Electrochemical Transistors for Reconfigurable Logic

Advanced Functional Materials, EarlyView.
Organic electrochemical transistors based on a Near‐Infrared (NIR)‐responsive polymer p(C4DPP‐T) and iodide electrolyte exhibit optically programmable negative differential transconductance. NIR illumination triggers an iodine‐mediated redox process, enabling a transition from binary to ternary conductance states within a single‐layer device.
Debdatta Panigrahi, Christina J. Kousseff, Aristea Pavlou, Zeinab Hamid, Iain McCulloch, Fabrizio Torricelli, Paul W. M. Blom, Paschalis Gkoupidenis   +7 more
wiley   +1 more source

Weak electric fields promote resonance in neuronal spiking activity: Analytical results from two-compartment cell and network models. [PDF]

PLoS Computational Biology, 2019
Transcranial brain stimulation and evidence of ephaptic coupling have sparked strong interests in understanding the effects of weak electric fields on the dynamics of neuronal populations. While their influence on the subthreshold membrane voltage can be
Josef Ladenbauer, Klaus Obermayer
doaj   +1 more source

Resonate and Fire Neuron with Fixed Magnetic Skyrmions

, 2018
In the brain, the membrane potential of many neurons oscillates in a subthreshold damped fashion and fire when excited by an input frequency that nearly equals their eigen frequency.
Chen X., Damien Querlioz, Datta S., Dhritiman Bhattacharya, Jayasimha Atulasimha, Md. Ali Azam, Yu S.   +6 more
core   +3 more sources

Conductance‐Dependent Photoresponse in a Dynamic SrTiO3 Memristor for Biorealistic Computing

Advanced Functional Materials, EarlyView.
A nanoscale SrTiO3 memristor is shown to exhibit dynamic synaptic behavior through the interaction of local electrical and global optical signals. Its photoresponse depends quantitatively on the conductance state, which evolves and decays over tunable timescales, enabling ultralow‐power, biorealistic learning mechanisms for advanced in‐memory and ...
Christoph Weilenmann, Hanglin He, Marko Mladenović, Till Zellweger, Kevin Portner, Klemens Bauer, Guillaume Bellec, Mathieu Luisier, Alexandros Emboras   +8 more
wiley   +1 more source

Spike timing precision of neuronal circuits

Journal of Computational Neuroscience, 2018
Spike timing is believed to be a key factor in sensory information encoding and computations performed by the neurons and neuronal circuits. However, the considerable noise and variability, arising from the inherently stochastic mechanisms that exist in the neurons and the synapses, degrade spike timing precision.
Deniz Kilinc, Alper Demir
openaire   +4 more sources

Gourd‐Inspired Design of Unit Cell with Multiple Gradients for Physiological‐Range Pressure Sensing

Advanced Functional Materials, EarlyView.
Gourd‐shaped micro‐dome arrays with coordinated modulus, conductivity, and geometric gradients co‐optimize sensitivity and linearity in piezoresistive tactile sensors. Under pressure, a solid upper dome embeds into a porous lower dome, triggering rapid contact‐area growth and series‐to‐parallel conduction, enabling unsaturated, intensity‐resolved ...
Jiayi Xu, Ming Lei, Yuanzhe Liang, Biao Qi, Ziyi Dai, Yong Zhao, Bingpu Zhou   +6 more
wiley   +1 more source

Monolithic Integration of an FP-SA Optical Spiking Neuron and SOA Synapse by Photonic Crystals

Photonics
We demonstrate a monolithically integrated photonic chip that combines an optical spiking neuron with a tunable synaptic element. The spiking neuron is realized using a quantum-well Fabry–Perot laser integrated with a saturable absorber (FP-SA), while a ...
Haodong Xuan, Guangliang Sun, Yang Chen, Ningning Chen, Zeyu Wang, Hailing Wang, Wanhua Zheng   +6 more
doaj   +1 more source

Control and Synchronization of Neuron Ensembles [PDF]

, 2012
Synchronization of oscillations is a phenomenon prevalent in natural, social, and engineering systems. Controlling synchronization of oscillating systems is motivated by a wide range of applications from neurological treatment of Parkinson's disease to ...
Dasanayake, Isuru, Li, Jr-Shin, Ruths, Justin   +2 more
core