Command: iaf_cond_alpha


Meffin H. Burkitt A. N. & Grayden D. B. (2004). An analytical
model for the large fluctuating synaptic conductance state typical of
neocortical neurons in vivo. J. Comput. Neurosci. 16 159-175.

Bernander O . Douglas R. J. Martin K. A. C. & Koch C. (1991).
Synaptic background activity influences spatiotemporal integration in
single pyramidal cells. Proc. Natl. Acad. Sci. USA 88(24)

Kuhn Aertsen Rotter (2004) Neuronal Integration of Synaptic Input in
the Fluctuation- Driven Regime. Jneurosci 24(10) 2345-2356


iaf_cond_alpha is an implementation of a spiking neuron using IAF dynamics with
conductance-based synapses. Incoming spike events induce a post-synaptic change
of conductance modelled by an alpha function. The alpha function
is normalised such that an event of weight 1.0 results in a peak current of 1 nS
at t = tau_syn.


The following parameters can be set in the status dictionary.

V_m double - Membrane potential in mV
E_L double - Leak reversal potential in mV.
C_m double - Capacity of the membrane in pF
t_ref double - Duration of refractory period in ms.
V_th double - Spike threshold in mV.
V_reset double - Reset potential of the membrane in mV.
E_ex double - Excitatory reversal potential in mV.
E_in double - Inhibitory reversal potential in mV.
g_L double - Leak conductance in nS;
tau_syn_ex double - Rise time of the excitatory synaptic alpha function in ms.
tau_syn_in double - Rise time of the inhibitory synaptic alpha function in ms.
I_e double - Constant input current in pA.

Schrader Plesser


SpikeEvent CurrentEvent DataLoggingRequest