Equivalent of compartment/symcompartment in NEURON?

altaylor · Post by **altaylor** » Wed Dec 20, 2006 6:26 pm

In GENESIS, there's a way to specify whether you want the membrane resistance and capacitance at the _end_ of the axial resistor for a segment, or if you want it in the "middle" of the axial resistor. (The command "compartment" covers the first case, the command "symcompartment" covers the second. Or so I'm told...) Is there any analog of this in NEURON? Or, to put the question more generally, how does NEURON deal with this issue? From reading the NEURON book, I get the impression NEURON does something symcompartment-like by default, but I'm not 100% sure. Nor do I know whether there's a way to get the "compartment"-like behavior.

Thanks in advance,
Adam

Post by **ted** » Thu Dec 21, 2006 1:06 am

Spatial discretization in NEURON uses the central difference approximation
to the continuous PDE, i.e. all cable compartments are represented by
equivalent T circuits.