iaf_psc_alpha_multisynapse – Leaky integrate-and-fire neuron model with multiple ports
======================================================================================

Description
+++++++++++

``iaf_psc_alpha_multisynapse`` is a direct extension of ``iaf_psc_alpha``.
On the postsynaptic side, there can be arbitrarily many synaptic
time constants (``iaf_psc_alpha`` 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 ``tau_syn_ex`` or ``tau_syn_in``, the model
   will numerically behave as if ``tau_m`` is equal to ``tau_syn_ex`` or
   ``tau_syn_in``, respectively, to avoid numerical instabilities.

   For implementation details see the
   `IAF Integration Singularity notebook <../model_details/IAF_Integration_Singularity.ipynb>`_.

Sends
+++++

SpikeEvent

Receives
++++++++

SpikeEvent, CurrentEvent, DataLoggingRequest

See also
++++++++
:doc:`Neuron <index_neuron>`, :doc:`Integrate-And-Fire <index_integrate-and-fire>`, :doc:`Current-Based <index_current-based>`

Examples using this model
+++++++++++++++++++++++++

.. listexamples:: iaf_psc_alpha_multisynapse