Search found 39 matches

by nianwosuh
Thu Dec 16, 2010 4:04 pm
Forum: Modeling networks
Topic: Network of cells using gap jucntion
Replies: 1
Views: 2406

Network of cells using gap jucntion

Please, could you explain to me why this code generates error; load_file ("Rod.tem") // load template for Rod cells rodx = 4 // number of horizontal layers of cells rody = 5 // number of vertical layers of cells ncells = rodx * rody // Total number of Rod cells to create objref Rod[rodx][rody] // cr...
by nianwosuh
Sun Nov 28, 2010 9:23 pm
Forum: Anatomically detailed models
Topic: Reconstructed Retinal Cells
Replies: 1
Views: 1490

Reconstructed Retinal Cells

Please is anyone aware of any website (or lab where I can make a request from) where I can download reconsturcted retinal cells (receptors(rod and cones), bipolars, amacrines, ganglions ). I am aware of single compartment models people have used in their work. I am interested in using the full morph...
by nianwosuh
Sun Nov 28, 2010 9:08 pm
Forum: Other questions
Topic: Are there any outdated hoc codes?
Replies: 2
Views: 2961

Re: Are there any outdated hoc codes?

Thank you very much for these detailed explanations, and for the links you included , the information there have demystified many codes that I find overwhleming, wondering what they mean and how people could figure such details out.

Thank you very much!
Irene
by nianwosuh
Fri Oct 15, 2010 5:01 pm
Forum: Other questions
Topic: Are there any outdated hoc codes?
Replies: 2
Views: 2961

Are there any outdated hoc codes?

I'm going through some of Destexhe models, when I double clicked on his hoc code to run it as to see what the out puts of the models are I get error messages like : graphList not an array variable in /cygdrive/C/Documents and Settings/_Irene_/My Documents/Research at WFUMC/Peer review papers/Destexh...
by nianwosuh
Wed Oct 06, 2010 2:59 pm
Forum: Getting started
Topic: NEURON BOOK Chapter 11 (rig.hoc)
Replies: 4
Views: 2164

NEURON BOOK Chapter 11 (rig.hoc)

Please could you check the hoc syntax for loading the RunControl and variable time step? I'm working through chapter 11 of the NEURON book and following the instructions under section 11.5.2 "Exploiting the reusable code". For the "rig.hoc" section that should be used for the interface for adjusting...
by nianwosuh
Mon Oct 04, 2010 4:18 pm
Forum: Modeling networks
Topic: Simulating a model of graded synaptic transmission
Replies: 5
Views: 4375

Re: Simulating a model of graded synaptic transmission

Thank you for the explainations. I have made the corrections you suggested, first I changed the amp of the SinClamp from 2.0nA to 0.1nA, I ran the simulation, this is the error msg generated: "at line 62 in file Calcium_Pump.mod: BREAKPOINT { SOLVE state METHOD sparse Error at section location prece...
by nianwosuh
Wed Sep 29, 2010 4:09 pm
Forum: Modeling networks
Topic: Calcium PumP in NEURON BOOK
Replies: 0
Views: 1831

Calcium PumP in NEURON BOOK

Please can you check the details of the calcium pump.mod in section 9.11 of the neuron book. I copied the code as it is witten and compiled the mod file there was no error. This is the second time I have used it in in a model and have almost the same type of error message. The first was when I tried...
by nianwosuh
Wed Sep 29, 2010 2:19 pm
Forum: Modeling networks
Topic: Simulating a model of graded synaptic transmission
Replies: 5
Views: 4375

Re: Simulating a model of graded synaptic transmission

Thank you for the explainatiions especially for reminding me the basic geometery. Iinitially I had a basal dendrite attached to the soma, the basal dendrite being the precell that contains the cdp and cachan, andt he soma being the postcell. With your explainations I have changed the geometry of the...
by nianwosuh
Tue Sep 28, 2010 1:39 pm
Forum: Modeling networks
Topic: Modeling Gap Rectifying Junction
Replies: 1
Views: 1748

Modeling Gap Rectifying Junction

Please could you explain to me the difference between the Gap.mod modeled in NEURON Book listing 10.2 and that modeled in the on-line course under "linear circuits, rectifying junction" The PARAMETER and BREAKPOINT sections of both mod files are different. Please could you explain the reason for the...
by nianwosuh
Mon Sep 27, 2010 4:57 pm
Forum: Modeling networks
Topic: Simulating a model of graded synaptic transmission
Replies: 5
Views: 4375

Simulating a model of graded synaptic transmission

I tried to reproduce fig 10.2 in the NEURON book: I created the pre and post cells using cell builder. (The precell is a basilar and the post cell is a soma), I used the specifications in the text, but was not sure what the length of the precell(basilar should be, as it is said to be a hermisphere) ...
by nianwosuh
Sun Sep 26, 2010 8:37 pm
Forum: Getting started
Topic: NEURON BOOK Chapter 8 (Initializing the mechanism)
Replies: 6
Views: 2901

Re: NEURON BOOK Chapter 8 (Initializing the mechanism)

Thank you! It is taken care of.

Irene
by nianwosuh
Fri Sep 24, 2010 4:55 pm
Forum: Getting started
Topic: NEURON BOOK Chapter 8 (Initializing the mechanism)
Replies: 6
Views: 2901

Re: NEURON BOOK Chapter 8 (Initializing the mechanism)

Please I am thanking you for your explaination for Chapter 8, not for chap 9, I have not resolved that yet.
Irene
by nianwosuh
Fri Sep 24, 2010 4:53 pm
Forum: Getting started
Topic: NEURON BOOK Chapter 8 (Initializing the mechanism)
Replies: 6
Views: 2901

Re: NEURON BOOK Chapter 8 (Initializing the mechanism)

Thank you! It works now!

Thank you
Irene
by nianwosuh
Fri Sep 24, 2010 4:20 pm
Forum: Getting started
Topic: NEURON BOOK Chapter 8 (Initializing the mechanism)
Replies: 6
Views: 2901

NEURON BOOK Chapter Listings 9.8 and 9.9

Please can you check the codes of cadifus (calcium diffusion) of listing 9.8 in NEURON book. Itried to compile the mod file but it gives this error message : syntax error: Illegal expression: Illegal reaction syntax: Illegal integer expression: FROM intvar = intexpr TO intexpr BY intexpr { statement...
by nianwosuh
Tue Sep 21, 2010 3:41 pm
Forum: Getting started
Topic: NEURON BOOK Chapter 8 (Initializing the mechanism)
Replies: 6
Views: 2901

NEURON BOOK Chapter 8 (Initializing the mechanism)

I am working through the chapter eight of the NEURON book, sec 8.4.4.2 and repeating the hoc codes in the chapter as to help me understand what is being discussed in that chapter but I am running into difficulties, please I will need some help to understand the excericses. I created the mod file of ...