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The effects of stimulus intensity and the N-methyl-D-aspartate (NMDA) antagonist 2-amino-5-phosphonovalerate (AP5) were studied on the induction of short-term potentiation (STP) and long-term potentiation (LTP) in CA1 of the rat hippocampal slice. A tetanus of very weak intensity stimuli produced STP, and also LTP providing the stimuli were applied in the(More)
Extracellular excitatory postsynaptic potentials (EPSPs) were recorded from the stratum radiatum of CA1 of the rat hippocampal slice. The effect of altering the external Ca concentration was studied on the amplitude of the low frequency evoked EPSP preceding and following the production of long-term potentiation (LTP). The double logarithmic plot of the(More)
The effect of the Ca agonist BAY K8644 was studied on long-term potentiation (LTP) of extracellular excitatory postsynaptic potentials in the stratum radiatum of CA1 of the hippocampus in vitro. LTP was evoked by brief trains of high-frequency stimulation applied to the stratum radiatum of CA1. 0.5% Ethanol, the vehicle used to dissolve BAY K8644, reduced(More)
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