Results 151 to 160 of about 408,389 (348)

Synchronization-Induced Spike Termination in Networks of Bistable Neurons [PDF]

arXiv, 2018
We observe and study a self-organized phenomenon whereby the activity in a network of spiking neurons spontaneously terminates. We consider different types of populations, consisting of bistable model neurons connected electrically by gap junctions, or by either excitatory or inhibitory synapses, in a scale-free connection topology.
arxiv  

All‐Electric Mimicking of Synaptic Plasticity Based on the Noncollinear Antiferromagnetic Device

Advanced Electronic Materials, EarlyView.
Mn3Pt was chosen as spin source with a simple face‐centered cubic structure and a noncollinear antiferromagnetic configuration to build a spin‐orbit torque (SOT) device that mimics all‐electric synaptic behavior for developing neuromorphic computing.
Cuimei Cao, Wei Duan, Xiaoyu Feng, Yan Xu, Yihan Wang, Zhenzhong Yang, Qingfeng Zhan, Long You   +7 more
wiley   +1 more source

A framework for generalized group testing with inhibitors and its potential application in neuroscience [PDF]

, 2019
The main goal of group testing with inhibitors (GTI) is to efficiently identify a small number of defective items and inhibitor items in a large set of items.
Bui, Thach V., Cheraghchi, Mahdi, Echizen, Isao, Kuribayashi, Minoru   +3 more
core   +1 more source

Spike-timing dependent plasticity in inhibitory circuits

Frontiers in Synaptic Neuroscience, 2010
Inhibitory circuits in the brain rely on GABA-releasing interneurons. For long, inhibitory circuits were considered weakly plastic in the face of patterns of neuronal activity that trigger long-term changes in the synapses between excitatory principal ...
Karri P Lamsa, Dimitri M. Kullmann, Melanie A Woodin   +2 more
doaj   +1 more source

Research on Resistive Switching Mechanism of SnO2/SnS2 Based Heterojunction Memory Devices

Advanced Electronic Materials, EarlyView.
This work fabricates SnO2/SnS2 RRAM using (NH4)4Sn2S6, achieving 224 pJ set energy at 0.4 V with >1000‐cycle stability and 4 × 104 s retention. XPS/SEM/AFM‐validated interfacial engineering enables uniform switching, advancing low‐power neuromorphic memory development.
WenBin Liu, Lifang Hu, RuoXuan Zhao, ZhiYong Hou, JinYu Tian   +4 more
wiley   +1 more source

Amyloid-β induces synaptic dysfunction through G protein-gated inwardly rectifying potassium channels in the fimbria-CA3 hippocampal synapse

Frontiers in Cellular Neuroscience, 2013
Last evidences suggest that, in Alzheimer's disease (AD) early stage, Amyloid-β (Aβ) peptide induces an imbalance between excitatory and inhibitory neurotransmission systems resulting in the functional impairment of neural networks.
Mauricio O. Nava-Mesa, Mauricio O. Nava-Mesa, Lydia eJimenez-Diaz, Javier eYajeya, Juan D Navarro-Lopez   +4 more
doaj   +1 more source

All-electric mimicking synaptic plasticity based on the noncollinear antiferromagnetic device [PDF]

arXiv
Neuromorphic computing, which seeks to replicate the brain's ability to process information, has garnered significant attention due to its potential to achieve brain-like computing efficiency and human cognitive intelligence. Spin-orbit torque (SOT) devices can be used to simulate artificial synapses with non-volatile, high-speed processing and ...
arxiv  

High Linearity and Symmetry Ferroelectric Artificial Neuromorphic Devices Based on Ultrathin Indium‐Tin‐Oxide Channels

Advanced Electronic Materials, EarlyView.
Ultrathin ITO and ferroelectric HZO are used to fabricate synaptic transistors. The device has a great on/off ratio ≈108 with a memory window of 1.73 V, successfully simulates the characteristics of the human brain, and achieves good linearity of 0.45 for potential and 0.73 for depression and low asymmetry of 0.89.
Siwei Wang, Xuemeng Hu, Baifan Qian, Jiajie Yu, Zhenhai Li, Qingqing Sun, David Wei Zhang, Qingxuan Li, Lin Chen   +8 more
wiley   +1 more source

Contribute to balance, wire in accordance: Emergence of backpropagation from a simple, bio-plausible neuroplasticity rule [PDF]

arXiv
Backpropagation (BP) has been pivotal in advancing machine learning and remains essential in computational applications and comparative studies of biological and artificial neural networks. Despite its widespread use, the implementation of BP in the brain remains elusive, and its biological plausibility is often questioned due to inherent issues such ...
arxiv  

Enhancing Synaptic Plasticity in Strontium Titanate‐Based Sensory Processing Devices: A Study on Oxygen Vacancy Modulation and Performance in Artificial Neural Networks

Advanced Intelligent Discovery, EarlyView.
This article presents the artificial synapse based on strontium titanate thin films via spin‐coating followed by forming gas annealing to introduce oxygen vacancies. Characterizations (X‐ray photoelectron spectroscopy, electron paramagnetic resonance, Ultraviolet photoelectron spectroscopy (UPS)) confirm increased oxygen vacancies and downward energy ...
Fandi Chen, Zijian Feng, Shuo Zhang, Jie Min, Long Hu, Tianxu Huang, Tingting Mei, Jiyun Kim, Beining Dong, Xinyu Ma, Tao Yin, Jintao Wang, Peiyuan Guan, Tao Wan, Chun‐Ho Lin, Zhi Li, Dewei Chu   +16 more
wiley   +1 more source