stdp – Synapse type for spike-timing dependent plasticity

Description

The STDP class is a type of synapse model used to create synapses that enable spike timing dependent plasticity (as defined in 1). Here the weight dependence exponent can be set separately for potentiation and depression.

Parameters

tau_plus	ms	Time constant of STDP window, potentiation
tau_minus	ms	Time constant of STDP window, depression
lambda	real	Step size
alpha	real	Asymmetry parameter (scales depression increments as alpha*lambda)
mu_plus	real	Weight dependence exponent, potentiation
mu_minus	real	Weight dependence exponent, depression
Wmax	real	Maximum allowed weight

References

1

Guetig et al. (2003). Learning input correlations through nonlinear temporally asymmetric hebbian plasticity. Journal of Neuroscience, 23:3697-3714 DOI: https://doi.org/10.1523/JNEUROSCI.23-09-03697.2003