urbanczik_synapse – Synapse type for a plastic synapse after Urbanczik and Senn

Description

urbanczik_synapse is a connector to create Urbanczik synapses as defined in [1] that can connect suitable multicompartment models. In contrast to most STDP models, the synaptic weight depends on the postsynaptic dendritic potential, in addition to the pre- and postsynaptic spike timing.

Urbanczik synapses require the archiving of the dendritic membrane potential which is continuous in time. Therefore they can only be connected to neuron models that are capable of doing this archiving. So far, the only compatible model is pp_cond_exp_mc_urbanczik.

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

eta

real

Learning rate

tau_Delta

real

Time constant of low pass filtering of the weight change

Wmax

real

Maximum allowed weight

Wmin

real

Minimum allowed weight

All other parameters are stored in the neuron models that are compatible with the Urbanczik synapse.

Transmits

SpikeEvent

References

See also

Synapse, Spike-Timing-Dependent Plasticity

Examples using this model