TVB Users

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Welcome to the TVB Users group

Here, the users of the Virtual Brain can ask questions, provide feedback and discussion functionality.

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lala z, WOODMAN Michael5

Dec 6

The value of the posterior distribution of the epileptic parameters η is always higher than the mean value of the set prior distribution

Hello, I seem to understand what you said, but if I want to set a weak information prior in

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The value of the posterior distribution of the epileptic parameters η is always higher than the mean value of the set prior distribution

Hello, I seem to understand what you said, but if I want to set a weak information prior in

Dec 6

lala z, WOODMAN Michael8

Dec 6

A priori about setting excitability parameters η in combination with clinical hypothesis

hi again, I agree this looks like the model is overconstrained. In the model code n = n_mu + 0.1 *

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A priori about setting excitability parameters η in combination with clinical hypothesis

hi again, I agree this looks like the model is overconstrained. In the model code n = n_mu + 0.1 *

Dec 6

lala z, WOODMAN Michael4

Dec 6

Regarding the judgment method of Ez

Hi, The primary difference of interest between these papers is that the first one uses maximum a

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Regarding the judgment method of Ez

Hi, The primary difference of interest between these papers is that the first one uses maximum a

Dec 6

Deepa Tilwani, WOODMAN Michael7

Nov 29

Posterior parameter estimation for the Jansen rit

hi TVB uses a last extra dimension for the modal models which JR is not. You can just add the extra

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Posterior parameter estimation for the Jansen rit

hi TVB uses a last extra dimension for the modal models which JR is not. You can just add the extra

Nov 29

Alex Escalera Balcells, Lia Domide5

Nov 23

Flat brain activity and SJ3D not working

Hello! Thanks for your response again. I did some testing and I came out with oscillating response on

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Flat brain activity and SJ3D not working

Hello! Thanks for your response again. I did some testing and I came out with oscillating response on

Nov 23

Nov 21

pipeline for parameter estimation in jansen rit simulation.

Hi all, I'm very new to TVB. I'm trying to create a script that uses tvb and fit on EEG/sEEG

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pipeline for parameter estimation in jansen rit simulation.

Hi all, I'm very new to TVB. I'm trying to create a script that uses tvb and fit on EEG/sEEG

Nov 21

lala z, WOODMAN Michael4

Nov 17

A priori algorithm for estimating excitability parameters η

Hello, do you have the corresponding code for the prior estimation algorithm in the paper I mentioned

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A priori algorithm for estimating excitability parameters η

Hello, do you have the corresponding code for the prior estimation algorithm in the paper I mentioned

Nov 17

Silvana Huertas, WOODMAN Michael2

Nov 7

Alpha band Jansen Rit

hi, I noticed you are computing your spectrogram for the wrong sampling frequency in this script: you

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Alpha band Jansen Rit

hi, I noticed you are computing your spectrogram for the wrong sampling frequency in this script: you

Nov 7

goyala...@gmail.com

Oct 31

Visualise connectivity between pairs of brain regions

Dear Sir/Ma'am, I have been assigned the task to "visualise connectivity between pairs of

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Visualise connectivity between pairs of brain regions

Dear Sir/Ma'am, I have been assigned the task to "visualise connectivity between pairs of

Oct 31

Silvana Huertas, WOODMAN Michael2

Oct 18

Downsample meshes

hi there are a few ways to do it, but the one which preserves the region mapping "for free"

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Downsample meshes

hi there are a few ways to do it, but the one which preserves the region mapping "for free"

Oct 18

Silvana Huertas, WOODMAN Michael5

Oct 17

Atlas with 76 regions TVB

Hi, Thank you :). This helps me a lot. Have a nice day, Silvana El lunes, 17 de octubre de 2022 a las

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Atlas with 76 regions TVB

Hi, Thank you :). This helps me a lot. Have a nice day, Silvana El lunes, 17 de octubre de 2022 a las

Oct 17

Martin Iñiguez, Lia Domide3

Oct 9

Problems on the Spectrogram Visualization

Please ignore my previous answer. We seem to have a bug in the latest versions of TVB related to the

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Problems on the Spectrogram Visualization

Please ignore my previous answer. We seem to have a bug in the latest versions of TVB related to the

Oct 9

Martin Iñiguez, Courtiol, Julie2

Oct 6

Problems on Log In

Hi Martin, Yes, individual account needs to be validated on our side. Individual accounts are mainly

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Problems on Log In

Hi Martin, Yes, individual account needs to be validated on our side. Individual accounts are mainly

Oct 6

Silvana Huertas, WOODMAN Michael8

Oct 4

How to input tACS forward solution (FEM) into model

Hi, I found a gifti file (sample.cortex.gii) in the folder https://zenodo.org/record/3497545#.

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How to input tACS forward solution (FEM) into model

Hi, I found a gifti file (sample.cortex.gii) in the folder https://zenodo.org/record/3497545#.

Oct 4

Borjan Milinkovic, WOODMAN Michael10

Sep 29

Global Coupling induces Regime switching in the Generic2DOscillator and its underlying interpretation

Ah, this is nice. Yes, very do-able. I think I could plot this with an information-theoretic metric I

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Global Coupling induces Regime switching in the Generic2DOscillator and its underlying interpretation

Ah, this is nice. Yes, very do-able. I think I could plot this with an information-theoretic metric I

Sep 29

Borjan Milinkovic

Sep 29

Question on Berlin Subjects data in tvb_data repo

Hi all, I'm wondering if the two Berlin Subjects datasets supplied in the tvb_data repo

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Question on Berlin Subjects data in tvb_data repo

Hi all, I'm wondering if the two Berlin Subjects datasets supplied in the tvb_data repo

Sep 29

Martin Iñiguez, … WOODMAN Michael4

Sep 23

Problems on Windows Installation

Thx, it workeddd On Thursday, September 22, 2022 at 11:39:51 AM UTC+2 marmaduke.woodman wrote: hi

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Problems on Windows Installation

Thx, it workeddd On Thursday, September 22, 2022 at 11:39:51 AM UTC+2 marmaduke.woodman wrote: hi

Sep 23

David Lima, WOODMAN Michael3

Sep 20

SupHopf example notebook frequency

Hi Could you explain a bit better what you mean? I want to understand if what i talked about is a

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SupHopf example notebook frequency

Hi Could you explain a bit better what you mean? I want to understand if what i talked about is a

Sep 20

WOODMAN Michael, lala z14

Sep 14

Re: 回复： [SUSPECTED SPAM] [TVB] Process Empirical SEEG data

Hello, I seem to find that the accuracy of EZ prediction is very low, mainly because the brain area

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Re: 回复： [SUSPECTED SPAM] [TVB] Process Empirical SEEG data

Hello, I seem to find that the accuracy of EZ prediction is very low, mainly because the brain area

Sep 14

Sep 9

Anatomical positioning of electrodes

Hello, how to project the position of SEEG electrode to brain segmentation atlas, such as VEP or

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Anatomical positioning of electrodes

Hello, how to project the position of SEEG electrode to brain segmentation atlas, such as VEP or

Sep 9

Sep 8

About EZ in deep brain region

Hello, I have a question. SEEG electrodes are generally located in the deep brain area, but the brain

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About EZ in deep brain region

Hello, I have a question. SEEG electrodes are generally located in the deep brain area, but the brain

Sep 8

Daniel Polyakov, Silvana Huertas2

Aug 24

Jansen-Rit - sanity check

Hi Daniel, I'm having the same issue, producing 4Hz oscillations. Were you able to solve this?

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Jansen-Rit - sanity check

Hi Daniel, I'm having the same issue, producing 4Hz oscillations. Were you able to solve this?

Aug 24

Orestis Stylianou, Spase Petkoski3

Aug 15

Parameter Exploration in Kuramoto Model

Hello, I see... I will try to look into the literature to find a better model then. Thank you! On

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Parameter Exploration in Kuramoto Model

Hello, I see... I will try to look into the literature to find a better model then. Thank you! On

Aug 15

Lia Domide, … WOODMAN Michael5

Aug 8

Re: Error when using TemporalApplicableEquation

hi Can you include the traceback as well please? Thanks, Marmaduke From: tvb-...@googlegroups.com

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Re: Error when using TemporalApplicableEquation

hi Can you include the traceback as well please? Thanks, Marmaduke From: tvb-...@googlegroups.com

Aug 8

khushigarg1001, WOODMAN Michael2

Aug 8

Visualizing Frequency Changes in VTAs Using The Virtual Brain

Hi, It's possible generate simulations for varying stimuli and then analyze the spectral changes.

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Visualizing Frequency Changes in VTAs Using The Virtual Brain

Hi, It's possible generate simulations for varying stimuli and then analyze the spectral changes.

Aug 8

lala z, … meysam....@gmail.com6

Jul 14

Process Empirical SEEG data

Hello, In Fittingworkflow_EmpiricalSEEGdata.ipynb in BVEP, I can't find the report.py: 在2022年7月12

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Process Empirical SEEG data

Hello, In Fittingworkflow_EmpiricalSEEGdata.ipynb in BVEP, I can't find the report.py: 在2022年7月12

Jul 14

Orestis Stylianou, Courtiol, Julie5

Jul 12

Names of brain regions in 192 connectivity

I see... Alright then, I will try to decipher the 192. Thanks for the clarification! On Tuesday, July

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Names of brain regions in 192 connectivity

I see... Alright then, I will try to decipher the 192. Thanks for the clarification! On Tuesday, July

Jul 12

Orestis Stylianou, … Courtiol, Julie9

Jul 11

Generic2DOscillatory - Parameter Exploration of Global Coupling and Mean Delay

Alright, Thanks! On Monday, July 11, 2022 at 1:02:00 PM UTC+2 julie.c...@bih-charite.de wrote: Hi

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Generic2DOscillatory - Parameter Exploration of Global Coupling and Mean Delay

Alright, Thanks! On Monday, July 11, 2022 at 1:02:00 PM UTC+2 julie.c...@bih-charite.de wrote: Hi

Jul 11

Maria Sundell, Courtiol, Julie3

Jul 4

Seeking beginners advice: how did you learn?

Dear Julie, Thank you so much for this input. I'll look into these sources. =) Have a nice day, /

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Seeking beginners advice: how did you learn?

Dear Julie, Thank you so much for this input. I'll look into these sources. =) Have a nice day, /

Jul 4

Nephiloso Wu, … NeuroLife6

Jun 28

Stimulatus applied on surface produced unrealistic result

Ah, I see. I missed that rescaling with sqrt(dt) when looking at the code, thanks! On Tuesday, June

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Stimulatus applied on surface produced unrealistic result

Ah, I see. I missed that rescaling with sqrt(dt) when looking at the code, thanks! On Tuesday, June

Jun 28

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