Each SpikingGroup in Auryn stores and manages a selection of StateVectors which can be accessed through string specifiers/handles and be read out using a StateMonitor.

The following default specifiers objects are initialized per default in all classes based on NeuronGroup.

• mem The membrane potential
• thr The adaptive component of the firing threshold as used in some default models such as IFGroup.
• g_ampa The vector storing the AMPA conductance.
• g_nmda The vector storing the NMDA conductance.
• g_gaba The vector storing the GABA conductance.

In addition to that each neuron group may initialize and use additional StateVectors. For instance, the get_state_vector(“foobar”) function returns the pointer to a StateVector with handle foobar. If the instance does not exist prior to the call, a new instance with that specifier will be created.