synaptic potential


Also found in: Encyclopedia.

synaptic potential

the potential difference across the POST-SYNAPTIC MEMBRANE that results from the action of TRANSMITTER SUBSTANCE (neurotransmitter) at a SYNAPSE.
References in periodicals archive ?
The more senses we employee within our interpretive products, the larger the synaptic potential. Using a multisensory approach is neither a left, nor a right brain experience.
Simultaneous stimulation of the Schaffer collaterals and recording from the CA1 region of the hippocampus was performed in aged CAM [[alpha].sub.1A]-AR and WT mice, and the evoked field excitatory post synaptic potential (fEPSP) slopes were recorded.
The asiatic acid, a triterpenoids isolated from Centella asiatica was used to delineate its inhibitory effect on acetylcholinesterase (AChE) properties, excitatory post synaptic potential (EPSP) and locomotor activity.
The amplitudes were measured from baseline to the peak of the synaptic potential. To determine quantal size, a model cell preparation was used, and the number of occurrences and their amplitudes of the mPSP were plotted.
Gardner and Kandel (1977) identified a diphasic synaptic potential (EPSP followed by an IPSP) originating from the cholinergic interneuron B4/5.
During penetration, hyperpolarizing current was passed through the electrode to help determine the point at which the electrode tip came into physical contact with the cell membrane, and to prevent potential firing of SNs during penetration (and so ensure subsequent accurate sampling of the first synaptic potential evoked in the MN).
Possibly first discussed as an intrinsic potential by Watanabe (1958) in lobster CG, and further described in studies of the Squilla (stomatopod) CG (Watanabe et al., 1967a, b), driver potentials are relatively slow, sustained, regenerative depolarizations that may arise from a gradual pacemaker potential or be evoked by a depolarization, such as an excitatory synaptic potential (or an applied depolarizing stimulus) (Fig.
Rall, "Distinguishing theoretical synaptic potentials computed for different soma-dendritic distributions of synaptic input.," Journal of Neurophysiology, vol.
The synaptic potentials were evoked by trains of 5 pulses at different frequencies (5, 10, 20, and 50 Hz).
Furthermore, depolarizing and hyperpolarizing inhibitory synaptic potentials were found in the subiculum [49, 50], contributing to the generation of interictal activity in vitro.
Although spontaneous and evoked inhibitory synaptic potentials due to chloride fluxes have been recorded in the stellate ganglion of squids (Miledi, 1972) and in slices of the cuttlefish optic lobe (Chrachri and Williamson, 2003), so far neither the neurotransmitter mediating those potentials nor their membrane receptors have been characterized.
Differences in time course of ACh and GABA modulation of excitatory synaptic potentials in slices of rat hippocampus.