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.
Weights on connection to the parrot_neuron are ignored.
Weights on connections from the parrot_neuron are handled as usual.
Delays are honored on 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).