parrot_neuron_ps – Neuron that repeats incoming spikes - precise spike timing version¶
The parrot neuron simply emits one spike for every incoming spike. An important application is to provide identical poisson spike trains to a group of neurons. The poisson_generator sends a different spike train to each of its target neurons. By connecting one poisson_generator to a parrot_neuron and then that parrot_neuron to a group of neurons, all target neurons will receive the same poisson spike train.
Please note that weights of connections to the
are ignored, while weights on connections from the
to the target are handled as usual. Delays are honored on both
incoming and outgoing connections.
Only spikes arriving on connections to port 0 will be repeated. Connections onto port 1 will be accepted, but spikes incoming through port 1 will be ignored. This allows setting exact pre- and postsynaptic spike times for STDP protocols by connecting two parrot neurons spiking at desired times by, e.g., a stdp_synapse onto port 1 on the postsynaptic parrot neuron.
Please note that this node is capable of sending precise spike times to target nodes (on-grid spike time plus offset).