iaf_psc_exp_multisynapse – Leaky integrate-and-fire neuron model with multiple ports
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Description
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iaf_psc_exp_multisynapse is a direct extension of iaf_psc_exp.
On the postsynaptic side, there can be arbitrarily many synaptic
time constants (iaf_psc_exp has exactly two: tau_syn_ex and tau_syn_in).

This can be reached by specifying separate receptor ports, each for
a different time constant. The port number has to match the respective
"receptor_type" in the connectors.

.. note::

   If `tau_m` is very close to a synaptic time constant, the model
   will numerically behave as if `tau_m` is equal to the synaptic
   time constant, to avoid numerical instabilities.

   For implementation details see the
   `IAF_neurons_singularity <../neuron_docs/model_details/IAF_neurons_singularity.ipynb>`_ notebook.

Remarks:

For conversion between postsynaptic potentials (PSPs) and PSCs,
please refer to the ``postsynaptic_potential_to_current`` function in
:doc:`PyNEST Microcircuit: Helper Functions <../auto_examples/Potjans_2014/helpers>`.

Sends
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SpikeEvent

Receives
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SpikeEvent, CurrentEvent, DataLoggingRequest

See also
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:doc:`Neuron <index_neuron>`, :doc:`Integrate-And-Fire <index_integrate-and-fire>`