Filters








222 Hits in 4.2 sec

Formation of Autapse Connected to Neuron and Its Biological Function

Chunni Wang, Shengli Guo, Ying Xu, Jun Ma, Jun Tang, Faris Alzahrani, Aatef Hobiny
2017 Complexity  
This paper discussed the possible formation mechanism and biological function of autapse connection on neurons.  ...  Autapse is a specific synapse connected to the neuron via close loop, and its functional adjusting is described by applying time-delayed feedback on the membrane potential of the neuron.  ...  Acknowledgments This work is partially supported by the National Natural Science Foundation of China under Grant nos. 11365014 and 11672122.  ... 
doi:10.1155/2017/5436737 fatcat:qorlkumdx5ephi2wcfje4lwvme

Autaptic Modulation of Electrical Activity in a Network of Neuron-Coupled Astrocyte

Shengli Guo, Jun Tang, Jun Ma, Chunni Wang
2017 Complexity  
Autapse connection is considered on a biological neuron coupled by astrocyte, and the effect of autapse driving-induced response in electrical activities is investigated.  ...  The modulation of autapse connected to HH neuron can change the membrane potential by applying time-delayed feedback along a close loop.  ...  Acknowledgments This work is partially supported by the National Natural Science of Foundation of China under the Grant nos. 11672122, 11365014, and 11372122.  ... 
doi:10.1155/2017/4631602 fatcat:cwbvajyu6nb7jag4eh23il2yqi

Autaptic regulation of electrical activities in neuron under electromagnetic induction

Ying Xu, Heping Ying, Ya Jia, Jun Ma, Tasawar Hayat
2017 Scientific Reports  
It indicates the formation of autapse can enhance the self-adaption of neuron so that appropriate response to external forcing can be selected, this biological function is helpful for encoding and signal  ...  Autapse, a specific synapse which connects the its own body of neuron via close loop 20,21 , and it is confirmed that autaptic driving and autapse connection to neuron can regulate the electrical behavior  ...  Acknowledgements This work is supported by National Natural Science Foundation of China under the Grant Nos 11672122, 11372122 and 11365014.  ... 
doi:10.1038/srep43452 pmid:28240314 pmcid:PMC5327473 fatcat:voh3hjeipzfpxmdkc7j7stclhu

Emitting waves from defects in network with autapses

Huixin Qin, Ying Wu, Chunni Wang, Jun Ma
2015 Communications in nonlinear science & numerical simulation  
The effect of autapse connected to a neuron is often described by using a self-feedback forcing current in a close loop, and the electric activities of neuron can be regulated by the autapse greatly.  ...  Finally, the functional switch between negative and positive feedback in autapse is discussed, it is claimed that positive feedback autapse plays an important role in cheering up quiescent neurons, while  ...  Acknowledgment This work was partially supported by the National Natural Science Foundation of China under the Grant Nos. 11265008, 11372122, 11365014.  ... 
doi:10.1016/j.cnsns.2014.11.008 fatcat:u6ezes3zeje6djtkfttwgwypuq

Computational approaches to the architecture and operations of the prefrontal cortical circuit for working memory

Shoji Tanaka
2001 Progress in Neuro-psychopharmacology and Biological Psychiatry  
Self-Feedback Connections The autapse is a synapse between a neuron and a branch of its own dendrites (Van der Loos and Glaser 1972).  ...  Providing that PFC neurons also have autapses, the connections through autapses may have some roles in the formation of working memory.  ... 
doi:10.1016/s0278-5846(00)00155-x pmid:11263755 fatcat:gt2f5mrljza55lafu5tdvtoocy

Autapse-Induced Spiral Wave in Network of Neurons under Noise

Huixin Qin, Jun Ma, Chunni Wang, Ying Wu, Changsong Zhou
2014 PLoS ONE  
Autapses are considered in a local area of regular network of neurons to investigate the development of spatiotemporal pattern, and emergence of spiral wave is observed while it fails to grow up and occupy  ...  The network keeps ordered state when self-sustained spiral wave is formed under noise and autapse in local area of network, and it independent of the selection of periodical or no-flux boundary condition  ...  [37, 38] gave a brief discussion about the potential biological function of autapse in neuron.  ... 
doi:10.1371/journal.pone.0100849 pmid:24967577 pmcid:PMC4072706 fatcat:ciwwnf7nrfejdokcf36azhu6uq

Autapses promote synchronization in neuronal networks

Huawei Fan, Yafeng Wang, Hengtong Wang, Ying-Cheng Lai, Xingang Wang
2018 Scientific Reports  
If it is possible to examine the structural details of the representative neurons in such a network, the presence of autapses would imply a higher probability for synchronization and, consequently, a more  ...  With the advance of biotechnologies, we hope that it would be possible to test our hypothesis that autapses are correlated with synchrony through structural examination at the single neuron level and dynamics  ...  An autapse is referred to as a special synapse that connects the axon and dendrites of the same neuron.  ... 
doi:10.1038/s41598-017-19028-9 pmid:29330551 pmcid:PMC5766500 fatcat:vlwuzh2otrdythzakkmxpxbmh4

Autaptic Connections Shift Network Excitability and Bursting [article]

Laura Wiles, Shi Gu, Fabio Pasqualetti, Danielle S. Bassett, David F. Meaney
2016 arXiv   pre-print
The number of autaptic connections required to induce bursting behavior could be lowered by selectively adding autapses to high degree excitatory neurons.  ...  Network architecture forms a critical constraint on neuronal function. Here we examine the role of structural autapses, when a neuron synapses onto itself, in driving network-wide bursting behavior.  ...  Number of pairwise differences are given as a function of the amount of autapses added, as well as the fraction of excitatory (left) and inhibitory (right) neurons.  ... 
arXiv:1608.00431v1 fatcat:5fes5wb435a55h25mcf3j46lxq

Synaptic circuits and their variations within different columns in the visual system ofDrosophila

Shin-ya Takemura, C. Shan Xu, Zhiyuan Lu, Patricia K. Rivlin, Toufiq Parag, Donald J. Olbris, Stephen Plaza, Ting Zhao, William T. Katz, Lowell Umayam, Charlotte Weaver, Harald F. Hess (+17 others)
2015 Proceedings of the National Academy of Sciences of the United States of America  
Here, we address the omission by comparing the circuits common to all seven columns to assess variation in their connection strengths and the resultant rates of several different and distinct types of  ...  Autapses, in which the same cell is both presynaptic and postsynaptic at the same synapse, are occasionally seen; two cells in particular, Dm9 and Mi1, form ≥20-fold more autapses than do other neurons  ...  Aljoscha Nern helped us to determine the correspondence between light microscopy and EM of cell types, and also commented on the manuscript.  ... 
doi:10.1073/pnas.1509820112 pmid:26483464 pmcid:PMC4640747 fatcat:hdcko2uruvgave6l75timt4ua4

Regulation of Irregular Neuronal Firing by Autaptic Transmission

Daqing Guo, Shengdun Wu, Mingming Chen, Matjaž Perc, Yangsong Zhang, Jingling Ma, Yan Cui, Peng Xu, Yang Xia, Dezhong Yao
2016 Scientific Reports  
In contrast, inhibitory autapses suppress burst firing and therefore tend to improve the regularity of neuronal firing.  ...  Our results provide an insightful mechanistic understanding of how different types of autapses shape irregular firing at the single-neuron level, and they highlight the functional importance of autaptic  ...  connection and implement two types of models: the postsynaptic neuron with excitatory autapse (the PCE model, Fig. 1B 2 ) and the postsynaptic neuron with inhibitory autapse (the PCI model, and 3F).  ... 
doi:10.1038/srep26096 pmid:27185280 pmcid:PMC4869121 fatcat:qxgevkw2mraghiltoffhemzscu

Deriving physical connectivity from neuronal morphology

Nir Kalisman, Gilad Silberberg, Henry Markram
2003 Biological cybernetics  
A model is presented that allows prediction of the probability for the formation of appositions between the axons and dendrites of any two neurons based only on their morphological statistics and relative  ...  across neurons according to the model.  ...  This study was supported by the National Alliance for Autism Research, the Minerva Foundation, the US Navy, the Ebner Center for Biomedical Research, and the Edith Blum Foundation.  ... 
doi:10.1007/s00422-002-0377-3 pmid:12647228 fatcat:edf7t5dsgfejfkhmxck4vthgru

Intrinsic Adaptation in Autonomous Recurrent Neural Networks

Dimitrije Marković, Claudius Gros
2012 Neural Computation  
A massively recurrent neural network responds on one side to input stimuli and is autonomously active, on the other side, in the absence of sensory inputs.  ...  The intermittent bursting regime is characterized by intervals of regular flows, which are quite insensitive to external stimuli, interseeded by chaotic bursts which respond sensitively to input signals  ...  A synaptic connection between the axon and the dendrites of the same neuron is also known as an autapse. Neurons with an autapse are not rare in the brain.  ... 
doi:10.1162/neco_a_00232 pmid:22091667 fatcat:h4dgzkzkqvhjde7xs6sb2tcrcq

Connectivity Concepts in Neuronal Network Modeling [article]

Johanna Senk, Birgit Kriener, Mikael Djurfeldt, Nicole Voges, Han-Jia Jiang, Lisa Schüttler, Gabriele Gramelsberger, Markus Diesmann, Hans E. Plesser, Sacha J. van Albada
2021 arXiv   pre-print
Sustainable research on computational models of neuronal networks requires published models to be understandable, reproducible, and extendable.  ...  We hope that the proposed standardizations will contribute to unambiguous descriptions and reproducible implementations of neuronal network connectivity in computational neuroscience.  ...  Acknowledgments The authors would like to thank Daniel Hjertholm for inspiring work on testing connectivity generation schemes, Sebastian Spreizer for immediately adopting the graphical notation in NEST  ... 
arXiv:2110.02883v1 fatcat:cujc2ciynvbuxpf3qlndeo4smm

Transitions between classes of neuronal excitability and bifurcations induced by autapse

Zhiguo Zhao, Huaguang Gu
2017 Scientific Reports  
Our results presented a comprehensive relationship between 2 classes of neuronal excitability/spiking characterized by different types of bifurcations, along with a novel possible function of autapse or  ...  The transition from class I to class II excitability and from class II to class I spiking frequency responses were respectively induced by the inhibitory and excitatory autapse, which are characterized  ...  Acknowledgements This work was supported by the National Natural Science Foundation of China under Grant Nos 11372224 and 11572225.  ... 
doi:10.1038/s41598-017-07051-9 pmid:28755006 pmcid:PMC5533805 fatcat:byudks5zyrcitan7gob4cabdh4

Control of noise-induced coherent oscillations in three-neuron motifs [article]

Florian Bönsel, Patrick Krauss, Claus Metzner, Marius E. Yamakou
2021 arXiv   pre-print
In single neurons, we compare the effects of electrical and chemical autapses on the degree of coherence of the oscillations due to SISR.  ...  In this paper, we numerically investigate SISR and its control in single neurons and three-neuron motifs made up of the Morris-Lecar model.  ...  It consists of two or several layer networks connected to each other, with each node in one layer connected only to its replica node in another layer [44] .  ... 
arXiv:2106.11361v2 fatcat:22noyfgr6nc3jlzty3lz563owy
« Previous Showing results 1 — 15 out of 222 results