Search found 50 matches
- Wed Jul 12, 2017 10:47 pm
- Forum: NEURON + Python
- Topic: Any simple way to identify parent segment of point porcess
- Replies: 8
- Views: 16813
Re: Any simple way to identify parent segment of point porce
ramcdougal , thank you, for the suggestion! That is a very neat solution. But if we start from accuracy and electrical length, the number of segments is a constant, unless my dendrites start growing. From this point of view, the best strategy to minimize the amount of computation is to be sure that...
- Wed Jul 12, 2017 10:17 pm
- Forum: NEURON + Python
- Topic: Any simple way to identify parent segment of point porcess
- Replies: 8
- Views: 16813
Re: Any simple way to identify parent segment of point porce
Thank you, Ted, unless they belong to instances of an event-driven point process class (synaptic mechanism) that can be driven by multiple input streams, and you want to exploit that property in order to reduce model complexity and speed up simulations. Which apparently is rth's aim. As you know fro...
- Mon Jul 10, 2017 7:30 pm
- Forum: NEURON + Python
- Topic: Any simple way to identify parent segment of point porcess
- Replies: 8
- Views: 16813
Any simple way to identify parent segment of point porcess
Dear All, I apologize for a very trivial question. I have a python class which reconstructs neuron morphology from an SWF file, sets channels and so on. Now with such a nice reconstruction, I need to create 6k - 10k synapses on dendrite tree. Moreover, there are about 5 different synapses classes, w...
- Tue Jun 20, 2017 3:17 pm
- Forum: NEURON + Python
- Topic: Gradual change of synaptic weights for mimicking neuromod...
- Replies: 2
- Views: 11325
Re: Gradual change of synaptic weights for mimicking neuromo
A vector instance can play into only one reference variable. So if there are a lot of them and only a few modulation instances, it may be more efficient to modify the synapse so the NET_RECEIVE block multiplies the weight argument by a POINTER to one of a small number of modulation values per threa...
- Mon Jun 12, 2017 11:49 pm
- Forum: NEURON + Python
- Topic: Gradual change of synaptic weights for mimicking neuromod...
- Replies: 2
- Views: 11325
Gradual change of synaptic weights for mimicking neuromod...
I want to model a gradual change in synaptic conductance due to changing in concentration of some neuromodulator. I have a list of connections. Each element of the list is a tuple of (NetCon, presynaptic index, postsynaptic indexes). Now I'm trying to use Vector.play, to change synaptic weight durin...
- Thu May 11, 2017 7:17 pm
- Forum: Parallel NEURON
- Topic: h.fadvance() stops python threading, why?
- Replies: 2
- Views: 18454
Re: h.fadvance() stops python threading, why?
Thank you, for reply. Well, it isn't fortune. I'm trying to run a quite long simulation (minutes) and of course memory couldn't hold all generated data. So the idea was to run a simulation for one second, copy all vectors into python and resume a simulation, while python saves data on disk. It isn't...
- Tue May 09, 2017 4:35 pm
- Forum: Parallel NEURON
- Topic: h.fadvance() stops python threading, why?
- Replies: 2
- Views: 18454
h.fadvance() stops python threading, why?
Hi all, I have a bit strange problem with using threading Python module with NEURON. I run NEURON -- Release 7.4 (1370:16a7055d4a86) 2015-11-09 from Python 2.7.12 (default, Nov 19 2016, 06:48:10) script under Linux 4.4.0-53-generic #74-Ubuntu SMP Fri Dec 2 15:59:10 UTC 2016 x86_64 x86_64 x86_64 GNU/...
- Thu Feb 09, 2017 9:57 pm
- Forum: Specific models
- Topic: NEURON implementation of Compte et al 2003 pyramidal cell
- Replies: 0
- Views: 34838
NEURON implementation of Compte et al 2003 pyramidal cell
Hi everyone,
I'm looking for implementation of two compartment pyramidal cell model from Compte et al 2003 in NEURON.
http://jn.physiology.org/content/89/5/2707.long
Couldn't find anything, even similar, in Model DB.
Thank you,
rth
I'm looking for implementation of two compartment pyramidal cell model from Compte et al 2003 in NEURON.
http://jn.physiology.org/content/89/5/2707.long
Couldn't find anything, even similar, in Model DB.
Thank you,
rth
- Mon Feb 22, 2016 11:56 pm
- Forum: UNIX/Linux
- Topic: Problems installing Neuron on a supercluster
- Replies: 10
- Views: 20347
Re: Problems installing Neuron on a supercluster
Thank you! I'll try to play with it or work around.
- Mon Feb 01, 2016 1:33 pm
- Forum: UNIX/Linux
- Topic: Problems installing Neuron on a supercluster
- Replies: 10
- Views: 20347
Re: Problems installing Neuron on a supercluster
What if I need python?
- Wed Sep 30, 2015 11:18 am
- Forum: Getting started
- Topic: Choosing random dendrite
- Replies: 6
- Views: 10500
Re: Choosing random dendrite
Thank you Ted!
That is exactly what I looked for! Wonderful!
That is exactly what I looked for! Wonderful!
- Tue Sep 29, 2015 3:21 pm
- Forum: Getting started
- Topic: Choosing random dendrite
- Replies: 6
- Views: 10500
Re: Choosing random dendrite
Thank you Ted! I've got your idea to make a uniform distribution over the surface. I like it more than my previous one. We try to place synapses randomly at some distance from soma to mimic experimental data. So I have bunch of segments trunk[0] ... trunk[79] and apical[1]... apical[98], each of whi...
- Mon Sep 28, 2015 3:57 pm
- Forum: Getting started
- Topic: Choosing random dendrite
- Replies: 6
- Views: 10500
Re: Choosing random dendrite
Ted, But code above ensures that one section will have ONLY ONE synapse. It is not truly randomly chosen section from list. For example I want 50 synapses in random sections from SectionList and random position within each section. Position isn't problem, but how I can randomly choose section in Sec...
- Tue Aug 11, 2015 3:43 pm
- Forum: Other questions
- Topic: Apply extracellular stimulation using electric field
- Replies: 16
- Views: 16914
Re: Apply extracellular stimulation using electric field
Dear Hyeon, We also tried to use Pashut et al. (2011) TMS model. After few days working with model posted on modeldb, I have found two horrible bugs in the 2D code. The first is that: matlab part of this model generates two matrices 4001x4001 points of Ex and Ey components of electric field. Matlab ...
- Thu Feb 26, 2015 10:57 am
- Forum: NEURON + Python
- Topic: substitute stadard init() precedure from Python
- Replies: 2
- Views: 3099
Re: substitute stadard init() precedure from Python
Wonderful! Thanks!