volume_transmitter – Node used in combination with neuromodulated synaptic plasticity¶
Description¶
The volume transmitter is used in combination with neuromodulated synaptic plasticty, plasticity that depends not only on the activity of the pre- and the postsynaptic neuron but also on a non-local neuromodulatory third signal. It collects the spikes from all neurons connected to the volume transmitter and delivers the spikes to a user-specific subset of synapses. It is assumed that the neuromodulatory signal is a function of the spike times of all spikes emitted by the population of neurons connected to the volume transmitter. The neuromodulatory dynamics is calculated in the synapses itself. The volume transmitter interacts in a hybrid structure with the neuromodulated synapses. In addition to the delivery of the neuromodulatory spikes triggered by every pre-synaptic spike, the neuromodulatory spike history is delivered in discrete time intervals of a manifold of the minimal synaptic delay. In order to insure the link between the neuromodulatory synapses and the volume transmitter, the volume transmitter is passed as a parameter when a neuromodulatory synapse is defined. The implementation is based on the framework presented in 1.
Parameters¶
- deliver_interval - time interval given in d_min time steps, in which
the volume signal is delivered from the volume transmitter to the assigned synapses
References¶
- 1
Potjans W, Morrison A, Diesmann M (2010). Enabling functional neural circuit simulations with distributed computing of neuromodulated plasticity. Frontiers in Computattional Neuroscience, 4:141. DOI: https://doi.org/10.3389/fncom.2010.00141
Receives¶
SpikeEvent