vogels_sprekeler_synapse – Synapse type for symmetric spike-timing dependent plasticity with constant depression¶
Description¶
vogels_sprekeler_synapse
is a connector to create synapses with symmetric
spike time dependent plasticity and constant depression (as defined in 1).
The learning rule is symmetric, that is, the synapse is strengthened
irrespective of the order of the pre- and postsynaptic spikes. Each
pre-synaptic spike also causes a constant depression of the synaptic weight
which differentiates this rule from other classical STDP rules.
Warning
This synaptic plasticity rule does not take precise spike timing into account. When calculating the weight update, the precise spike time part of the timestamp is ignored.
Parameters¶
tau |
ms |
Time constant of STDP window, potentiation |
Wmax |
real |
Maximum allowed weight |
eta |
real |
Learning rate |
alpha |
real |
Constant depression (= 2 * tau * target firing rate in 1) |
Transmits¶
SpikeEvent
References¶
- 1(1,2)
Vogels et al. (2011). Inhibitory plasticity balances excitation and inhibition in sensory pathways and memory networks. Science, 334(6062):1569-1573. DOI: https://doi.org/10.1126/science.1211095