Results 51 to 60 of about 521,946 (359)
Convulsant actions of 4-aminopyridine on the guinea-pig olfactory cortex slice [PDF]
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
The energy demand of fast neuronal network oscillations: insights from brain slice preparations
Fast neuronal network oscillations in the gamma range (30-100 Hz) in the cerebral cortex have been implicated in higher cognitive functions such as sensual perception, working memory, and, perhaps, consciousness. However, little is known about the energy
Oliver eKann
doaj +1 more source
Signaling from the synapse to nucleus is mediated by the integration and propagation of both membrane potential changes (postsynaptic potentials) and intracellular second messenger cascades.
Jian Fu+3 more
doaj +1 more source
Binge‐like exposure to ethanol during the brain growth spurt triggers apoptotic neurodegeneration in multiple brain regions, including the retrosplenial cortex, a brain region that is part of the hippocampal‐diencephalic‐cingulate memory network. This is
Clark W. Bird, Carlos F. Valenzuela
doaj +1 more source
The Mammalian Interaural Time Difference Detection Circuit Is Differentially Controlled by GABAB Receptors during Development [PDF]
Throughout development GABAB receptors (GABABRs) are widely expressed in the mammalian brain. In mature auditory brainstem neurons, GABABRs are involved in the short-term regulation of the strength and dynamics of excitatory and inhibitory inputs, thus ...
Grothe, Benedikt+2 more
core +1 more source
During strong parallel fiber stimulation, glutamate released at parallel fiber-Purkinje cell synapses activates type-1 metabotropic glutamate receptor (mGluR1) to trigger a slow excitatory postsynaptic current (sEPSC) in cerebellar Purkinje neurons.
Jinbin Tian, Michael X. Zhu
doaj +1 more source
Biologically plausible solutions for spiking networks with efficient coding [PDF]
Understanding how the dynamics of neural networks is shaped by the computations they perform is a fundamental question in neuroscience. Recently, the framework of efficient coding proposed a theory of how spiking neural networks can compute low-dimensional stimulus signals with high efficiency.
arxiv
Alteration in the excitatory/inhibitory neuronal balance is believed to be the underlying mechanism of epileptogenesis. Based on this theory, GABAergic interneurons are regarded as the primary inhibitory neurons, whose failure of action permits ...
Hui Ye, Stephanie Kaszuba
doaj +1 more source
Molecular Noise In Synaptic Communication [PDF]
In synaptic molecular communication (MC), the activation of postsynaptic receptors by neurotransmitters (NTs) is governed by a stochastic reaction-diffusion process. This randomness of synaptic MC contributes to the randomness of the electrochemical downstream signal in the postsynaptic cell, called postsynaptic membrane potential (PSP).
arxiv +1 more source
2D interfacial diffusion model of inhibitory synaptic receptor dynamics [PDF]
The lateral diffusion and trapping of protein receptors within the postsynaptic membrane of a neuron plays a key role in determining the strength of synaptic connections and their regulation during learning and memory. In this paper we construct and analyze a 2D interfacial diffusion model of inhibitory synaptic receptor dynamics.
arxiv +1 more source