Neuromodulation
A neuromodulatory (NM) spike event is implemented as illustrated below:
- NM sends a spike
- Post cell receives the spike at S1, S2 and S7
- The synapse model at S1, S2, and S7 has to manage both presyanaptic spikes (nc_type = 0) and neuromodulatory spikes (nc_type = 10).
- The neuromodulators influence one or more, but not all synapses from a PRE neuron (e.g., S3 is not changed)
- The neuromodulators influence synapses coming from different neurons (e.g., S7 that comes from somewhere else)