Table 2.
Listing of symbols used in the analysis of LCP with SRM in Section “LCP with SRM Neuron” and LCP with LIAF in Section “LCP with LIAF Neuron.”
| u(t) | Neuron membrane voltage |
| g(t) | Synaptic conductance |
| Urefr | Amplitude of the hyperpolarization |
| Up | Area under the pulse curve, i.e., the size of the action potential |
| τrefr | Membrane time constant (also governs hyperpolarization curve) |
| Maximum synaptic conductance | |
| τg | Time constant of synaptic conductance |
| Θu | Voltage threshold of the LCP rule |
| αatt | Attenuation of postsynaptic action potentials |
| B | Proportionality constant relating synaptic dynamics in the LCP formulation to the synaptic weight change |
| UPSP | Amplitude of the postsynaptic potential resulting from a single presynaptic pulse |
| τall | Inverse combination of τrefr and τg, introduced for convenience in Eq. 15 |
| E | Normalized mean-square error of model with respect to experimental data |
| A+, A−, τ+, τ+ | Standard STDP parameters (Song et al., 2000) |
| λ | Pulse rate |