Search found 3 matches

by nseg
Wed Jun 11, 2008 10:51 pm
Forum: Anatomically detailed models
Topic: Extracellular Fields
Replies: 29
Views: 23399

Dear Ted, thank you for your help. I am really starting to understand it much better. I hope you don't mind me aksing more questions until I solved my problem. In the original example L was 100 um, and the extracellular field was a uniform gradient with an intensity of 40 mV/100um = 0.4 mV/um. The i...
by nseg
Wed Jun 11, 2008 1:21 am
Forum: Anatomically detailed models
Topic: Extracellular Fields
Replies: 29
Views: 23399

Dear Ted, thank you for your replay. Put another way, nseg is far too small for spatial accuracy in such an anatomically extended model. Use the d_lambda rule to figure out how long it should be. nseg: nseg=axon_length/(d_lambda*lambda_100) With: d_lambda=0.1 Ra=110 Cm=2.5 diam=0.72 axon_length=5000...
by nseg
Mon Jun 09, 2008 11:10 pm
Forum: Anatomically detailed models
Topic: Extracellular Fields
Replies: 29
Views: 23399

Der Ted and Coaster. This had been a really great topic. I downloaded the ecstim.zip and played around with it. After that I still have two questions which I hope you could explain to me. 1) Simply changing the axon length to 5 cm in the toymodel.hoc file results in a flat line (-65mV) in the voltag...