Results 261 to 270 of about 71,654 (304)
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Dendritic amplification of inhibitory postsynaptic potentials in a model Purkinje cell
European Journal of Neuroscience, 2006AbstractIn neurons with large dendritic arbors, the postsynaptic potentials interact in a complex manner with active and passive membrane properties, causing not easily predictable transformations during the propagation from synapse to soma. Previous theoretical and experimental studies in both cerebellar Purkinje cells and neocortical pyramidal ...
Solinas, Sergio M.G. +2 more
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Life Sciences, 1967
Abstract PREGANGLIONIC volleys evoke in the curarized superior cervical ganglion of turtles and rabbits (1,2) a positive wave (P potential) which is followed by a late occurring negative wave (LN potential). Tetanic stimulation enhances the P potential as well as the LN potential, whereas atropine completely abolishes both of them (2,3,4).
K, Koketsu, S, Nishi
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Abstract PREGANGLIONIC volleys evoke in the curarized superior cervical ganglion of turtles and rabbits (1,2) a positive wave (P potential) which is followed by a late occurring negative wave (LN potential). Tetanic stimulation enhances the P potential as well as the LN potential, whereas atropine completely abolishes both of them (2,3,4).
K, Koketsu, S, Nishi
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Journal of Neurophysiology, 1993
1. The serotonin-containing neurons in the A1 ganglion of the lobster have been shown to act as "gain setters" in neuronal circuits that control the adoption of behaviorally relevant postures. These neurons are subject to tonic inhibition, which has been proposed as an important regulator of their activity.
W A, Weiger, P M, Ma
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1. The serotonin-containing neurons in the A1 ganglion of the lobster have been shown to act as "gain setters" in neuronal circuits that control the adoption of behaviorally relevant postures. These neurons are subject to tonic inhibition, which has been proposed as an important regulator of their activity.
W A, Weiger, P M, Ma
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Topography of recurrent inhibitory postsynaptic potentials between individual motoneurons in the cat
Journal of Neurophysiology, 19941. The amplitude of recurrent inhibitory postsynaptic potentials (RIPSPs) was examined in pairs of lumbosacral motoneurons that were separated by a known distance and were identified by antidromic stimulation of muscle nerves. One motoneuron was stimulated by injecting depolarizing current pulses, and postsynaptic responses were recorded and averaged ...
M L, McCurdy, T M, Hamm
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Inhibitory modulation of long-term potentiation: Evidence for a postsynaptic locus of control
Brain Research, 1982Long-term potentiation (LTP) of the excitatory synapses of the perforant path onto the granule cells of the fascia dentata was prevented, or greatly reduced in amount, by stimulation of the contralateral hilus, a source of the commissural afferents and an indirect source of granule cell inhibition.
R M, Douglas, G V, Goddard, M, Riives
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Inhibitory Transmission: Slow Inhibitory Postsynaptic Potential
1986J. C. Eccles (1943) was the first to show that a slow surface positive (P) potential could be recorded, when preganglionic nerves were stimulated, from mammalian sympathetic ganglia treated with curare. This P potential was further investigated in turtle sympathetic ganglia by Laporte and Lorente de No (1950). In 1961, R. M.
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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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Anoxic depression of excitatory and inhibitory postsynaptic potentials in rat neocortical slices
Journal of Neurophysiology, 19931. The effects of brief anoxia (4-6 min replacement of O2 by N2) on synaptic potentials evoked from layer IV and/or the white matter were studied in pyramidal neurons of layers II-III from rat neocortical slices. 2. The early and late components of excitatory postsynaptic potentials (EPSPs) showed differential sensitivity to anoxia: within 2 min the ...
A S, Rosen, M E, Morris
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Ionic mechanism of the inhibitory postsynaptic potential of crayfish giant motor fiber
Pfl�gers Archiv European Journal of Physiology, 1969The ionic mechanism of the inhibitory postsynaptic potential (IPSP) was studied at the giant motor fiber of crayfishProcambarus clarki (Gerard). The reversal potential of the IPSP was −53±5 mV (mean and s.d. from 51 fibers), while the resting potential was −62±6 mV.
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Nonadrenergic inhibitory postsynaptic potentials of gastric smooth muscle cells
Neurophysiology, 1973Single intramural stimulation of the atropinized muscle strip of the guinea pig stomach by square pulses was accompanied by the formation of inhibitory postsynaptic potentials (IPSPs) in the muscle cells and by relaxation of the strip. The mean latent period of the IPSPs was 150±15 msec, and the time for its amplitude to rise and fall was 150±15 and ...
E. S. Atanasova +2 more
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