Search found 49 matches
- Sun Mar 07, 2021 12:49 pm
- Forum: Adding new mechanisms and functions to NEURON
- Topic: netstim and randomness
- Replies: 1
- Views: 7671
netstim and randomness
Hello, I'm using netstim and netcon to trigger an EXp2Syn : n_syn=5 //5 synapses objref syn[n_syn] // the synapses are located on a dendrite called den for i=0,n_syn-1{ dend{syn[i]=new Exp2Syn(0.5) syn[i].tau1=0.1 syn[i].tau2=2 syn[i].e=0} } // I create 5 netstim objref netstim[n_syn] for i=0,n_syn-...
- Mon Feb 22, 2021 1:04 pm
- Forum: Adding new mechanisms and functions to NEURON
- Topic: How to find EXp2Syn
- Replies: 2
- Views: 7662
Re: How to find EXp2Syn
Thanks a lot Ted.
#2 was fine for me.
Regards
Fabien
#2 was fine for me.
Regards
Fabien
- Sun Feb 21, 2021 7:58 am
- Forum: Adding new mechanisms and functions to NEURON
- Topic: How to find EXp2Syn
- Replies: 2
- Views: 7662
How to find EXp2Syn
Hello,
I'd like to find where is located this file Exp2syn on Linux but I couldn't find it.
Thanks
Fabien
I'd like to find where is located this file Exp2syn on Linux but I couldn't find it.
Thanks
Fabien
- Fri Dec 20, 2019 9:41 am
- Forum: Anatomically detailed models
- Topic: altering length and diameter over a subset
- Replies: 1
- Views: 7905
altering length and diameter over a subset
Hello, Just a short question: is it possible to change section length or diameter for all the sections in a subset as a whole? I would expect to write : if I have a subset called all_dendrite for i=1, 8 { forsec all_dendrite {L=L/i} forsec all { nseg = int((L/(0.1*lambda_f(100))+.999)/2)*2 + 1 } // ...
- Mon Nov 18, 2019 7:22 am
- Forum: Anatomically detailed models
- Topic: measurments of area by section
- Replies: 2
- Views: 8508
Re: measurments of area by section
Dear TED,
Thanks a lot for your prompt answer.
Regards
Fabien
Thanks a lot for your prompt answer.
Regards
Fabien
- Fri Nov 15, 2019 8:55 am
- Forum: Anatomically detailed models
- Topic: measurments of area by section
- Replies: 2
- Views: 8508
measurments of area by section
Hello, I'm trying to obtain the surface of the different compartments. I understood that to obtain it for a section I should write totalarea_soma = 0 soma for (x,0) totalarea_soma += area(x) # take into account the number of nseg or for the all neuron totalarea_neuron = 0 all for (x,0) totalarea_neu...
- Tue Aug 28, 2018 11:44 am
- Forum: Anatomically detailed models
- Topic: how to calculate section area
- Replies: 5
- Views: 12007
Re: how to calculate section area [SOLVED]
Thanks a lot
- Tue Aug 28, 2018 10:51 am
- Forum: Anatomically detailed models
- Topic: how to calculate section area
- Replies: 5
- Views: 12007
Re: how to calculate section area
Hello again, I have a soma : L= 31 diam = 10 So according to I learned at school, the surface of a cylinder S= PI*diam*L (if we neglect the disk surfaces). With neuron I got : oc>soma {print L} 31 oc>soma {print diam} 10 oc>soma {print area(0.5)} 324.63124 By hand I got 3.14*10*31 = 31.4*31= 973.4 W...
- Mon Aug 27, 2018 11:25 am
- Forum: Anatomically detailed models
- Topic: how to calculate section area
- Replies: 5
- Views: 12007
Re: how to calculate section area
Hello Ted,
Actually you're right; it works as it should. I mixed up with section names. Sorry for bothering....
Acting fast is sometimes the enemy of thinking !!!!
Thanks a lot
Actually you're right; it works as it should. I mixed up with section names. Sorry for bothering....
Acting fast is sometimes the enemy of thinking !!!!
Thanks a lot
- Mon Aug 27, 2018 5:29 am
- Forum: Anatomically detailed models
- Topic: how to calculate section area
- Replies: 5
- Views: 12007
how to calculate section area
Hello, I'd like to calculate areas of different sections. I've read the documentation and searched through the forum but it remains unclear to me. How do I use the the area () command ? I loaded a hoc file with full morphology then I tried this : soma { surface= area(0.5) print surface } axon { surf...
- Thu Aug 09, 2018 4:33 am
- Forum: UNIX/Linux
- Topic: upgrade problem in Ubuntu [SOLVED]
- Replies: 3
- Views: 11139
Re: upgrade problem in Ubuntu [SOLVED]
Hello,
I found the solution by reading this excellent forum :
viewtopic.php?f=6&t=2636
It does work on ubuntu 18.0
Thanks again
Fabien
I found the solution by reading this excellent forum :
viewtopic.php?f=6&t=2636
It does work on ubuntu 18.0
Thanks again
Fabien
- Wed Aug 08, 2018 10:27 am
- Forum: UNIX/Linux
- Topic: upgrade problem in Ubuntu [SOLVED]
- Replies: 3
- Views: 11139
Re: upgrade problem in Ubuntu
Hello Ted, Hope you're well. I used the deb file: nrn-7.5x86_64.deb. I did not get an error at this stage. It happens with any version (or flavour) of Ubuntu . If I try to install an old version (7.4 or before) I got an error on Ubuntu 18 (missing dependencies) but it works on previous release of Ub...
- Wed Aug 08, 2018 5:34 am
- Forum: UNIX/Linux
- Topic: upgrade problem in Ubuntu [SOLVED]
- Replies: 3
- Views: 11139
upgrade problem in Ubuntu [SOLVED]
Hello, I tried to upgrade Neuron from 7.4 to the newest version under Ubuntu (14.10 or 18.10). The program installs without problem bu not my old programs don't work anymore I got error mistake when launching them : 64-linux_gnu_ld :cannot find -lncurses and so the libnrnlech.la file failed Did some...
- Fri May 04, 2018 11:21 am
- Forum: Adding new mechanisms and functions to NEURON
- Topic: firing frequency
- Replies: 3
- Views: 3615
Re: firing frequency
Hello Ted, Thanks a lot. I'll try on monday. I should expect to get 7 time intervals on the screen, right ? Then if I need to send them into a file, I should proceed in the same way (using the right command of course). To get the average ISI,I only need to sum all the values and divide them by nbspi...
- Fri May 04, 2018 8:07 am
- Forum: Adding new mechanisms and functions to NEURON
- Topic: firing frequency
- Replies: 3
- Views: 3615
firing frequency
Hello Ted, I know that this topic has already been addressed in the forum but despite many trials I couldn’t make it to work properly. So I have to "abdicate". I wrote the code thereafter. I got the correct number of spikes but I did not understant how to extract the timing from the netcon...