1-lambda-long

[rllin]

I was told to use a 1-lambda-long passively cylindrical dendrite.

From what I know, this should mean 1 times the lambda calculated from Ra, diam, frequency, and membrane capacitance?

Am I on the right path?

Also, how do the units work out for the lambda equation with Ra(ohm*cm), diam(micron), capacitance(microF/cm^2), and frequency(Hz)? Thanks!

[rllin]

I think I have found some possible answers?

1. I can just fix the default values as given, and use a frequency that is the average of my NetStims frequencies. Then I solve for diam while setting length to 1mm for 1-lambda?

2. 1e5 * the equation gives the current units in microns. from http://www.neuron.yale.edu/neuron/stati ... a_rev2.pdf

Is this right?

[ted]

I was told to use a 1-lambda-long passively cylindrical dendrite.

Typically such a statement means that the dendrite should be the same length as the length constant of an infinite cylinder that has the same diameter and electrical properties of cytoplasm and membrane.

[rllin]

Ah, okay, thanks!