Results 21 to 30 of about 10,435,031 (361)

Enhancement of synchronization in a hybrid neural circuit by spike timing dependent plasticity [PDF]

open access: yes, 2003
Synchronization of neural activity is fundamental for many functions of the brain. We demonstrate that spike-timing dependent plasticity (STDP) enhances synchronization (entrainment) in a hybrid circuit composed of a spike generator, a dynamic clamp ...
Abarbanel, Henry D I   +4 more
core   +2 more sources

Influence of Mpv17 on Hair-Cell Mitochondrial Homeostasis, Synapse Integrity, and Vulnerability to Damage in the Zebrafish Lateral Line

open access: yesFrontiers in Cellular Neuroscience, 2021
Noise exposure is particularly stressful to hair-cell mitochondria, which must produce enough energy to meet high metabolic demands as well as regulate local intracellular Ca2+ concentrations.
Melanie Holmgren   +2 more
doaj   +1 more source

Functional maps of neocortical local circuitry

open access: yesFrontiers in Neuroscience, 2007
This review aims to summarize data obtained with different techniques to provide a functional map of the local circuit connections made by neocortical neurones, a reference for those interested in cortical circuitry and the numerical information required
Alex M Thomson, Christophe Lamy
doaj   +1 more source

Modeling Calcium Dynamics and Inhibition Based Synaptic Plasticity in Dendritic Spines

open access: yesMathematical Modelling and Analysis, 2014
Inhibitory synapses through GABAergic channels not only change spine's calcium dynamics but also modulate postsynaptic current mediated through glutamate receptors.
Muhammad Dur-e-Ahmad
doaj   +1 more source

Convulsant actions of 4-aminopyridine on the guinea-pig olfactory cortex slice [PDF]

open access: yes, 1982
The effects of bath-applied 4-aminopyridine on neurones and extracellular potassium and calcium concentrations were recorded in slices of guinea-pig olfactory cortex. Neurones were orthodromically activated by stimulating the lateral olfactory tract.
Baranyi   +47 more
core   +1 more source

Brain Dystrophin in Duchenne Dystrophy

open access: yesPediatric Neurology Briefs, 1995
To define the potential pathogenic role of dystrophin deficiency in the cognitive impairment characteristic of Duchenne muscular dystrophy (DMD), the protein in brain cortical synapses of an 8-year-old patient examined at autopsy and an age-matched ...
J Gordon Millichap
doaj   +1 more source

Disinhibition of hippocampal CA3 neurons induced by suppression of an adenosine A1 receptor-mediated inhibitory tonus: Pre- and postsynaptic components [PDF]

open access: yes, 1993
Intracellular recordings were performed on hippocampal CA3 neuronsin vitro to investigate the inhibitory tonus generated by endogenously produced adenosine in this brain region.
Alzheimer   +60 more
core   +1 more source

Retrograde Synaptic Signaling Mediated by K+ Efflux through Postsynaptic NMDA Receptors

open access: yesCell Reports, 2013
Synaptic NMDA receptors (NMDARs) carry inward Ca2+ current responsible for postsynaptic signaling and plasticity in dendritic spines. Whether the concurrent K+ efflux through the same receptors into the synaptic cleft has a physiological role is not ...
Pei-Yu Shih   +7 more
doaj   +1 more source

Impairment Mechanisms and Intervention Approaches for Aged Human Neuromuscular Junctions

open access: yesFrontiers in Molecular Neuroscience, 2020
The neuromuscular junction (NMJ) is a chemical synapse formed between a presynaptic motor neuron and a postsynaptic muscle cell. NMJs in most vertebrate species share many essential features; however, some differences distinguish human NMJs from others ...
Yomna Badawi   +2 more
doaj   +1 more source

Neuromorphic Learning towards Nano Second Precision [PDF]

open access: yes, 2013
Temporal coding is one approach to representing information in spiking neural networks. An example of its application is the location of sounds by barn owls that requires especially precise temporal coding. Dependent upon the azimuthal angle, the arrival
Meier, Karlheinz   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy