1998
DOI: 10.1006/nlme.1998.3841
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Information Processing with Frequency-Dependent Synaptic Connections

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Cited by 130 publications
(106 citation statements)
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“…However, a more complex pattern of responses may emerge with an increasing number of stimuli (Markram et al, 1998). To explore the temporal dynamics of NMDA spike responses with longer activation patterns, we increased the number of synaptic pulses to 10 and varied the ISI between 10 and 1000 ms (n ϭ 6).…”
Section: Temporal Summation With Long Stimulus Trainsmentioning
confidence: 99%
“…However, a more complex pattern of responses may emerge with an increasing number of stimuli (Markram et al, 1998). To explore the temporal dynamics of NMDA spike responses with longer activation patterns, we increased the number of synaptic pulses to 10 and varied the ISI between 10 and 1000 ms (n ϭ 6).…”
Section: Temporal Summation With Long Stimulus Trainsmentioning
confidence: 99%
“…Administration of 20 Hz tetanization, as in our study, was widely used to induce long-term facilitation (LTF) of post-synaptic potentials at crayfish neuromuscular junctions (Wojtowicz andAtwood 1985, Delaney et al 1989), short-term synaptic plasticity in anesthetized fish (Fortune and Rose 2000), long-term potentiation (LTP) in hippocampal slices (Miles and Wong 1987) and modification of synaptic strength in cortical cultures (Jimbo et al 1999). In our simulated networks, tetanization induced both LTP and long-term depression (LTD) of synapses through STDP: firing of a post-synaptic neuron immediately after a pre-synaptic neuron results in LTP of synaptic transmission and the reverse order of firing results in LTD (Levy and Steward 1983, Markram et al 1998, Bi and Poo 1998, Gerstner et al 1996.…”
Section: Simulationmentioning
confidence: 90%
“…Briefly, 1000 leaky-integrateandfire (LIF) model neurons, with a total of 50 000 synapses, were placed randomly in a 3 mm by 3 mm area (see figure 1(c)). All synapses were frequency dependent (Markram et al 1998, Izhikevich et al 2004 to model synaptic depression. 70% of the neurons were excitatory, with spike-timing-dependent plasticity (STDP) (Song et al 2000).…”
Section: Simulationmentioning
confidence: 99%
“…Using the TM model, Markram et al (1998b) concluded that the effect of pairing is to selectively regulate low frequency synaptic transmission (Figure 3). Similarly, Markram et al (1998a) reported that pairing results in a selective change in low-frequency synaptic transmission, leaving high-frequency transmission unaffected.…”
Section: Introductionmentioning
confidence: 94%
“…(1998b) slated that The phenomenon produced when Pr changes is readily distinguished fi·om virtually all other types of synaptic changes since changing Pr is a mechanism to selectively regulate low frequency synaptic transmission. 1-lcrc, Pr means probability of release, which is denoted by U in Equations ( 4)-(S);md other types of synaptic changes include changes in the absolute synaptic efficacy, A, or the recovery time constant,''"' Also, Markram et al ( 1998a) noted that ... changes in U ... result in changes in the frequency dependence of transmission, also referred to as redistribution of synaptic efficacy (Markram & Tsodyks, 1996). Specifically, changing U results in a selective change in lowfrequency synaptic transmission, leaving high-frequency transmission unaffected.…”
Section: The Tm Modelmentioning
confidence: 99%