Results 281 to 290 of about 105,210 (313)
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Valproate enhances inhibitory postsynaptic potentials in hippocampal neurons in vitro
Brain Research, 1987Effects of sodium valproate (0.5-10 mM) on hippocampal cells (CA3 pyramidal cells and granule cells) of the guinea pig in vitro were studied by intra- and extracellular recording. Inhibitory postsynaptic potentials were markedly and reversibly augmented. Their shunting action as well as duration increased by more than 150%.
Manfred R. Klee +2 more
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A dopaminergic inhibitory postsynaptic potential mediated by an increased potassium conductance
Neuroscience, 1989Intracellular recordings from intact pituitary melanotrophs show that, in the same cell, inhibitory postsynaptic potentials resulting from either pituitary stalk stimulation or exogenous dopamine are abolished by D2 receptor antagonists, display identical conductance changes, are reversed in polarity at the same membrane potential and are sensitive to ...
Peter J. Williams +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).
S. Nishi, K. Koketsu
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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).
S. Nishi, K. Koketsu
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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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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, Mitsuru Takata
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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.
Rikuo Ochi, Rikuo Ochi
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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 ...
T. M. Hamm, Martha L. McCurdy
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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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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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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.
Graham V. Goddard +2 more
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