Results 251 to 260 of about 142,409 (303)
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Unitary Excitatory Postsynaptic Potentials in Clarke's Column Neurones
Nature, 1967IT is generally believed that synaptic transmission is effected by a quantal release of transmitter substances, such as has been demonstrated for the neuromuscular junction1. The quantal nature of synaptic transmission in the central nervous system is more difficult to investigate, one reason being that many presynaptic fibres usually contribute to the
E, Eide +4 more
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Summation of excitatory postsynaptic potentials in hippocampal pyramidal cells
Journal of Neurophysiology, 1983The summation of excitatory postsynaptic potentials (EPSPs) generated in separate parts of the dendritic tree of hippocampal pyramidal cells has been investigated using the in vitro slice preparation. Two separate inputs with known synaptic location were used.
I A, Langmoen, P, Andersen
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Summation of excitatory postsynaptic potentials in electrically-coupled neurones
Neuroscience, 2009Dendritic electrical coupling increases the number of effective synaptic inputs onto neurones by allowing the direct spread of synaptic potentials from one neurone to another. Here we studied the summation of excitatory postsynaptic potentials (EPSPs) produced locally and arriving from the coupled neurone (transjunctional) in pairs of electrically ...
Y, Vazquez +3 more
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Nicotinic cholinoceptor-mediated excitatory postsynaptic potentials in rat nucleus ambiguus
Experimental Brain Research, 1993In rat brainstem slice preparations, intracellular recording from neurons (n = 39) in the compact formation of the nucleus ambiguus (AMBc) revealed spontaneous and miniature excitatory postsynaptic potentials (EPSPs; n = 11) that, along with acetylcholine-induced depolarization, were enhanced by physostigmine (10 microM; n = 2) and blocked by dihydro ...
M, Zhang +4 more
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Ghrelin Potentiates Miniature Excitatory Postsynaptic Currents in Supraoptic Magnocellular Neurones
Journal of Neuroendocrinology, 2009Ghrelin is an orexigenic peptide discovered in the stomach as a ligand of the orphan G‐protein coupled receptor, and participates in the regulation of growth hormone (GH) release. Previous studies have demonstrated that ghrelin suppressed water intake and stimulated the secretion of arginine vasopressin in rats. We examined the effect of ghrelin on the
T, Yokoyama +8 more
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Voltage dependence of excitatory postsynaptic potentials of rat neocortical neurons
Journal of Neurophysiology, 19911. The properties of excitatory postsynaptic potentials (EPSPs) of rat neocortical neurons were investigated with a fast single-electrode current-voltage clamp in vitro. Typically, apparently pure EPSPs were obtained by selection of electric stimuli of low intensity. 2.
Deisz, R. +2 more
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Effect of glutamate receptor antagonists on excitatory postsynaptic potentials in striatum
Brain Research Bulletin, 1998Glutamate, as the main transmitter of corticostriatal pathway, has a crucial role in the regulation of the activity of striatal cells as well as in pathogenesis of some diseases characterized by striatal malfunction caused by overexcitation of neurons. In the present study, the role of ionotropic excitatory amino acid receptors was investigated in the ...
I, Világi +3 more
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All‐or‐none Excitatory Postsynaptic Potentials in the Rat Visual Cortex
European Journal of Neuroscience, 1995AbstractIntracellular recordings were obtained from supragranular neurons in slices of the rat visual cortex. In ∼25% of the cells large (0.5–1.6 mV) excitatory postsynaptic potentials (EPSPs) of constant amplitude were observed after minimal, presumably single‐fibre stimulation.
M, Volgushev +4 more
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A characterization of excitatory postsynaptic potentials in the avian nucleus magnocellularis
Journal of Neurophysiology, 19941. The activation of current-clamped neurons in the chick nucleus magnocellularis (nMAG) by eighth nerve stimulation has been studied in a brain slice preparation using patch electrodes. Single presynaptic stimuli produced rapidly rising, suprathreshold, excitatory postsynaptic potentials (EPSPs) with a synaptic delay of approximately 0.4 ms ...
S, Zhang, L O, Trussell
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Excitatory and inhibitory postsynaptic potentials in cat hypoglossal motoneurons during swallowing
Experimental Brain Research, 1988The postsynaptic potentials produced in cat genioglossus and styloglossus motoneurons (GG- and SG-Mns) during swallowing were studied. During swallowing elicited by placing water on the dorsum of the tongue, the GG-muscle discharged for 80-210 ms (mean +/- S. D.
N, Tomomune, M, Takata
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