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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farras abdelnour

Mar 16

Generating FC network from simulated NMM MEG

Dear experts, I am a TVB novice interested in obtaining MEG FC networks generated from nonlinear

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Generating FC network from simulated NMM MEG

Dear experts, I am a TVB novice interested in obtaining MEG FC networks generated from nonlinear

Mar 16

MICHELANGELO FABBRIZZI, Randy McIntosh2

Mar 15

From anatomical MRI and EEG to connectivity matrix

It depends a little on what you want to do with TVB. You can generate functional data from TVB with

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From anatomical MRI and EEG to connectivity matrix

It depends a little on what you want to do with TVB. You can generate functional data from TVB with

Mar 15

Michela Rocchetti

Mar 10

Evoked potential in Jansen-Rit

Hi there, I'm trying to simulate the evoked potential following a visual stimulus using Jansen-

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Evoked potential in Jansen-Rit

Hi there, I'm trying to simulate the evoked potential following a visual stimulus using Jansen-

Mar 10

Juliette Courson

Feb 28

Surface mesh for mice

Hi everyone, I would like to do some simulations with a cortical surface connectivity, but I could

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Surface mesh for mice

Hi everyone, I would like to do some simulations with a cortical surface connectivity, but I could

Feb 28

Marta Arbizu Gomez, Lia Domide4

Feb 28

from tvb.simulator.lab import * ERROR

Hi Marta, It seems to have worked - the import. The remaining warning that you see can be ignored, or

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from tvb.simulator.lab import * ERROR

Hi Marta, It seems to have worked - the import. The remaining warning that you see can be ignored, or

Feb 28

Maria Nazir, Lia Domide2

Feb 28

want information regarding functional connectivity in TVB web interface

Dear Maria, I think this question is a duplication, but I will copy the answer here also: All of the

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want information regarding functional connectivity in TVB web interface

Dear Maria, I think this question is a duplication, but I will copy the answer here also: All of the

Feb 28

Maria Nazir, … Lia Domide10

Feb 28

want information regarding brain tumor dataste in TVB

Dear Maria, All of the results from your screenshot (TimeSeriesBold, 2 FCD, PearsonCorrCoef) are

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want information regarding brain tumor dataste in TVB

Dear Maria, All of the results from your screenshot (TimeSeriesBold, 2 FCD, PearsonCorrCoef) are

Feb 28

Feb 15

PSE issues using stochastic heun integrator

Dear TVB community. I am attempting a whole-brain simulation using the default TVB connectome in the

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PSE issues using stochastic heun integrator

Dear TVB community. I am attempting a whole-brain simulation using the default TVB connectome in the

Feb 15

Maria Nazir, Courtiol, Julie2

Jan 17

getting tracts.txt and weights.txt from SCthrAn.mat file

Dear Maria, In each subject folder, there is a "_TVB.zip" file corresponding to the

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getting tracts.txt and weights.txt from SCthrAn.mat file

Dear Maria, In each subject folder, there is a "_TVB.zip" file corresponding to the

Jan 17

Maria Nazir, Lia Domide4

Jan 9

Help needed in importing Brain tumor data into TVB GUI

Dear all, We just released TVB Distribution version 2.7.2. You can get it here: https://www.

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Help needed in importing Brain tumor data into TVB GUI

Dear all, We just released TVB Distribution version 2.7.2. You can get it here: https://www.

Jan 9

Orestis Stylianou, … WOODMAN Michael6

Jan 4

Parameter Exploration in Jansen Rit

Hello, Thank you for your answer! I am sorry for the late reply. The notification went to my SPAM

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Parameter Exploration in Jansen Rit

Hello, Thank you for your answer! I am sorry for the late reply. The notification went to my SPAM

Jan 4

Karin Westin, Lia Domide2

Jan 2

Jansen Rit in the interactive phase plane?

Hi Karin, happy new year! Have you tried the web version of the phase-plane in TVB ? Maybe the online

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Jansen Rit in the interactive phase plane?

Hi Karin, happy new year! Have you tried the web version of the phase-plane in TVB ? Maybe the online

Jan 2

Karin Westin, … Lia Domide3

12/22/22

sim.run() data output?

Hi Karin, From here: https://github.com/the-virtual-brain/tvb-root/blob/master/tvb_library/tvb/

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sim.run() data output?

Hi Karin, From here: https://github.com/the-virtual-brain/tvb-root/blob/master/tvb_library/tvb/

12/22/22

lala z, WOODMAN Michael5

12/6/22

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

12/6/22

lala z, WOODMAN Michael8

12/6/22

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 *

12/6/22

lala z, WOODMAN Michael4

12/6/22

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

12/6/22

Deepa Tilwani, WOODMAN Michael7

11/29/22

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

11/29/22

Alex Escalera Balcells, Lia Domide5

11/23/22

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

11/23/22

11/21/22

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

11/21/22

lala z, WOODMAN Michael4

11/17/22

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

11/17/22

Silvana Huertas, WOODMAN Michael2

11/7/22

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

11/7/22

goyala...@gmail.com

10/31/22

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

10/31/22

Silvana Huertas, WOODMAN Michael2

10/18/22

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"

10/18/22

Silvana Huertas, WOODMAN Michael5

10/17/22

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

10/17/22

Martin Iñiguez, Lia Domide3

10/9/22

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

10/9/22

Martin Iñiguez, Courtiol, Julie2

10/6/22

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

10/6/22

Silvana Huertas, WOODMAN Michael8

10/4/22

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#.

10/4/22

Borjan Milinkovic, WOODMAN Michael10

9/29/22

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

9/29/22

Borjan Milinkovic

9/29/22

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

9/29/22

Martin Iñiguez, … WOODMAN Michael4

9/23/22

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

9/23/22

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