Search found 14 matches
- Thu May 01, 2014 1:32 pm
- Forum: Modeling networks
- Topic: synapses seem to have no influence
- Replies: 3
- Views: 5963
Re: synapses seem to have no influence
Sorry that I didn´t mention that. For the weight of the synapses I varied the value of course. I tried following weights: weight = 0.7 weight = 0.9 weight = 10 weight = 100 Now the last two values may be unrealistic but It was on purpose. I think the there exists synapses resp. there is connectivity...
- Wed Apr 30, 2014 9:04 am
- Forum: Modeling networks
- Topic: synapses seem to have no influence
- Replies: 3
- Views: 5963
synapses seem to have no influence
Hello, Iḿ working on a network model of cells of one template. Each cell is connected by gaps and synapses. Then a part of the cells will be stimulated in order to make the whole network firing synchronously. The way of connecting with synapses is shown in the code above: nZellen = 100 // number of ...
- Wed Apr 30, 2014 6:54 am
- Forum: Other questions
- Topic: random number generation - set start random number
- Replies: 1
- Views: 1061
random number generation - set start random number
Hello, I've got a question setting random numbers. If I use s.th. like this startcell = int(r.uniform(0,100)) This code is inside a for loop so it selects as many random numbers as I want the for loop to do. Is there a possibility the set the first random number of the random number generation proce...
- Wed Dec 11, 2013 8:13 am
- Forum: Modeling networks
- Topic: Stimulating current similar to a half wave rectification
- Replies: 10
- Views: 9475
Re: Stimulating current similar to a half wave rectification
Hello Ted, there is another question. My stim is now Ihw.. is there a possibility to change the amp but of course keeping the frequency? When i use an IClamp I can use this: nStimuli= 3 // would give me three stim nStim = 30 // would stimulate 30 cells each three times Frequenz = 80 // Hz T=(1/Frequ...
- Tue Dec 10, 2013 3:06 pm
- Forum: The GUI
- Topic: Saving Graphs automatically
- Replies: 3
- Views: 5661
Re: Saving Graphs automatically
Thanks Ted for your quick response.
I plan to do this many times. That´s why I don´t want to click so much in the Print & File Manager Window on Select -> Move -> Print -> and so on.
srene
I plan to do this many times. That´s why I don´t want to click so much in the Print & File Manager Window on Select -> Move -> Print -> and so on.
srene
- Tue Dec 10, 2013 8:40 am
- Forum: The GUI
- Topic: Saving Graphs automatically
- Replies: 3
- Views: 5661
Saving Graphs automatically
Hello Ted, i wanted to ask if it is possible to write s.th. in my .hoc file so that the graphs that will be plotted, while the hoc file runs, will be saved automatically. i mean I know that I can save data from the run like explained in the Tutorial: http://www.anc.ed.ac.uk/school/neuron/ But is the...
- Sun Oct 06, 2013 8:15 am
- Forum: Other questions
- Topic: "subscript out of range" error
- Replies: 3
- Views: 3298
Re: "subscript out of range" error
To explain my problem , I think it`s better to post this here. [Moderator's comment: This thread started as a post to a different thread that addressed a very different topic. It was split off into a new thread for the sake of clarity, which is ill served if each thread is free to wander all over co...
- Wed Oct 02, 2013 8:08 am
- Forum: Other questions
- Topic: "subscript out of range" error
- Replies: 3
- Views: 3298
"subscript out of range" error
In my hoc file I managed to write a .dat file to save the Information. Everything worked when I runned the hoc-file. After three runs with different frequencies, I runned it again with higher frequency. schreibe_dat() // is the proc to write the dat and worked The terminal said: /Applications/NEURON...
- Tue Sep 24, 2013 7:56 am
- Forum: Other questions
- Topic: Changing a graph's axis scales
- Replies: 1
- Views: 2144
Changing a graph's axis scales
Hello,
if I want to plot voltage over time, I select Neuron Main Menu -> Graph-> Voltage axis and there pops up a window. V: -80 mV to +40 mV t: 0s to tstop.
Is there a easy way to change the limits of the y-Axis. V: -120 mV to +40 mV e.g..
if I want to plot voltage over time, I select Neuron Main Menu -> Graph-> Voltage axis and there pops up a window. V: -80 mV to +40 mV t: 0s to tstop.
Is there a easy way to change the limits of the y-Axis. V: -120 mV to +40 mV e.g..
- Tue Sep 24, 2013 5:01 am
- Forum: Modeling networks
- Topic: Stimulating current similar to a half wave rectification
- Replies: 10
- Views: 9475
Re: Stimulating current similar to a half wave rectification
Thank you again. Now there is one more thing... I want to use a control variable j. j is the number of stimuli or the peaks of current. Therefore I need Pi π to do s.th. like this.... dur = 200 // Duration of Stimulation (ms) Frequenz= 30 // frequency (Hz) f= Frequenz*(2*???Pi???) // frequency (radi...
- Tue Sep 17, 2013 7:46 am
- Forum: Adding new mechanisms and functions to NEURON
- Topic: potassium channel: k_ion mechanism not inserted
- Replies: 1
- Views: 1574
potassium channel: k_ion mechanism not inserted
Hello, I have following problem. I have an kalium.mod file (I use Mac OS X Lion): TITLE ich versuch mich mal... UNITS { (mA) = (milliamp) (mV) = (millivolt) } PARAMETER { v (mV) celsius (degC) gkbar = 0.07 (mho/cm2) vhalfm = -3 (mV) vhalfh = -51 (mV) km = 10 (1) kh = -12 (1) ek } NEURON { SUFFIX kal...
- Wed Sep 04, 2013 6:02 am
- Forum: Modeling networks
- Topic: Stimulating current similar to a half wave rectification
- Replies: 10
- Views: 9475
Re: Stimulating current similar to a half wave rectification
Thanks again, it´s checked now... Is it possible to change the gap between two pulses of ihw? Like in the example i can change the distance between two square pulses by adding s.th. to the delay and multiplying it with the control variable j: for j = 0, nStimuli-1 { for i = 0, nStim-1 Zellen[i].soma...
- Sun Aug 25, 2013 8:46 am
- Forum: Modeling networks
- Topic: Stimulating current similar to a half wave rectification
- Replies: 10
- Views: 9475
Re: Stimulating current similar to a half wave rectification
Hello Ted,
thank you very much for responding that early. I thought I would get an email whenever someone answers so I´m late. I will try it.
thank you very much for responding that early. I thought I would get an email whenever someone answers so I´m late. I will try it.
- Wed Aug 21, 2013 6:32 am
- Forum: Modeling networks
- Topic: Stimulating current similar to a half wave rectification
- Replies: 10
- Views: 9475
Stimulating current similar to a half wave rectification
Hello, I have a working network of 500 cells. I want to test synchrony of firing in the network. For that I want to stimulate about 20 % (100 cells) ore more to test the network. I already can do this by putting an IClamp on a random chosen cells, stimulating with a square pulse (see example above)....