Search found 7 matches

by ecchiang
Tue Mar 06, 2007 1:23 pm
Forum: Getting started
Topic: calcium spikes
Replies: 1
Views: 3946

calcium spikes

I'm trying to build a model of a neuron to resemble the firing propertieis of a cell I've recorded from. I'm using mod files from various publications. Why is it that I can have a cell with no sodium channels but still have spikes that resemble sodium spikes. I'm pretty sure its the calcium channel ...
by ecchiang
Tue Aug 22, 2006 12:17 pm
Forum: Getting started
Topic: saving a vector into a file
Replies: 1
Views: 3464

saving a vector into a file

How do I write a vector into a text file that just lists all the numbers stored in the vector? I ultimatley want to import the file into Excel or origin to do some data anysis. I've tried vwrite and fwrite but they don't seem to work for me.

Thanks,
Elisa
by ecchiang
Wed Jul 26, 2006 10:53 am
Forum: Getting started
Topic: APCount()
Replies: 5
Views: 13295

The error message means that apc is not an object reference. APCount is a kind of point process, and point processes are managed with object syntax I see, so I need to declare apc by typing something like objref = abc A complete code that makes a soma, and then uses APCount to count the number of t...
by ecchiang
Wed Jul 26, 2006 10:03 am
Forum: Getting started
Topic: What does Init do?
Replies: 3
Views: 6655

Are you quite sure about the "no mechanism inserted" bit? Your code You're right, maybe I meant a point process? (no IClamp, VClamp, SEClamp, alphasynapse, etc.) This is a "steady state initialization under current clamp." ... Clicking on the Init button does a "steady stat...
by ecchiang
Tue Jul 25, 2006 4:59 pm
Forum: Getting started
Topic: APCount()
Replies: 5
Views: 13295

Syntax error

It just says:

nrniv: syntax error
near line 27 (that's just the line in the sh window)
apc = new APCount(0.5)
^

That's it.
by ecchiang
Tue Jul 25, 2006 1:22 pm
Forum: Getting started
Topic: APCount()
Replies: 5
Views: 13295

APCount()

I'm sorry if this question has a really obvious answer but I'm still really new to this. On the help section of the webpage, there is a object APCount() http://www.neuron.yale.edu/neuron/static/docs/help/neuron/neuron/mech.html#APCount In the syntax section, it includes the following line apc = new ...
by ecchiang
Tue Jul 25, 2006 12:32 pm
Forum: Getting started
Topic: What does Init do?
Replies: 3
Views: 6655

What does Init do?

Hello, I've just started using Neuron after 2 years of patch clamping in brain slices. When I patch clamp on the rig in Current clamp, I can add positive/negative current to maintain a resting membrane potential, usually -70 mV. I thought that setting the value "Init (mV)" in the RunContro...