TVB Users

1–30 of 484

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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刘政, WOODMAN Michael2

4:57 AM

SEEG source analysis

Hi The BVEP models would have the time series of the regions as one of the estimated quantities, and

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SEEG source analysis

Hi The BVEP models would have the time series of the regions as one of the estimated quantities, and

4:57 AM

NeuroLife, WOODMAN Michael5

1:05 AM

Parameter estimation

Hi I'd suggest searching for "feature engineering" for the general principles. After

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Parameter estimation

Hi I'd suggest searching for "feature engineering" for the general principles. After

1:05 AM

Nicolas Fourcaud-Trocmé, WOODMAN Michael2

Jun 16

Stimulation or Time dependent parameter in Wong Wang model

Hi For this purpose you can modify the model parameter array itself during the simulation. Many demos

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Stimulation or Time dependent parameter in Wong Wang model

Hi For this purpose you can modify the model parameter array itself during the simulation. Many demos

Jun 16

Apolline Sauvage, WOODMAN Michael2

Jun 14

Hi Please have a look through the tutorials, http://docs.thevirtualbrain.org/tutorials/Tutorials.html

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Hi Please have a look through the tutorials, http://docs.thevirtualbrain.org/tutorials/Tutorials.html

Jun 14

刘政, WOODMAN Michael9

Jun 8

How to use DICOMDIR format

Hi all I am using tvb-recon(https://github.com/the-virtual-brain/tvb-recon) docker image to get the

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How to use DICOMDIR format

Hi all I am using tvb-recon(https://github.com/the-virtual-brain/tvb-recon) docker image to get the

Jun 8

NeuroLife, WOODMAN Michael4

Jun 1

Larter-Breakspear model strange extreme values for V and Z

hi, The reduced Wong-Wang, Wilson-Cowan and Jansen-Rit models, in order of increasing complexity,

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Larter-Breakspear model strange extreme values for V and Z

hi, The reduced Wong-Wang, Wilson-Cowan and Jansen-Rit models, in order of increasing complexity,

Jun 1

Aidan Thomas McLoughlin MA, WOODMAN Michael2

May 31

Stimulation amplitude unit

hi The Epileptor is a phenomenological model meaning that stimulation does not have units. The

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Stimulation amplitude unit

hi The Epileptor is a phenomenological model meaning that stimulation does not have units. The

May 31

Pragha, NeuroLife2

May 29

TriatTypeError - models.JansenRit

Hi, I am still very new to TVB, but I believe that your issue comes with the inputs being floats

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TriatTypeError - models.JansenRit

Hi, I am still very new to TVB, but I believe that your issue comes with the inputs being floats

May 29

Nicolas Fourcaud-Trocmé, Lia Domide3

May 26

TVB 2.2.2 jupyter_notebook.sh does not launch in Linux

Thanks. For now, I managed to start the notebook by putting the full path towards the

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TVB 2.2.2 jupyter_notebook.sh does not launch in Linux

Thanks. For now, I managed to start the notebook by putting the full path towards the

May 26

JESUS CABRERA ALVAREZ, WOODMAN Michael9

May 25

JansenRit stimulation input

Hi To replicate the JR architecture in TVB, it would be required to have a PSP block for each

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JansenRit stimulation input

Hi To replicate the JR architecture in TVB, it would be required to have a PSP block for each

May 25

WOODMAN Michael, NeuroLife5

May 19

Re: [TVB] Scripting interface, setting up region-specific parameter values for a simulation

Hi Yes, the multiprocessing solution should be faster especially for many cores. cheers, Marmaduke On

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Re: [TVB] Scripting interface, setting up region-specific parameter values for a simulation

Hi Yes, the multiprocessing solution should be faster especially for many cores. cheers, Marmaduke On

May 19

WOODMAN Michael, Borjan Milinkovic2

May 13

Re: [TVB] Additive Noise Error in Heun Stochastic Integrator

Thanks Marmaduke, I was able to solve the problem. Regarding imports however, it seemed that I had

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Re: [TVB] Additive Noise Error in Heun Stochastic Integrator

Thanks Marmaduke, I was able to solve the problem. Regarding imports however, it seemed that I had

May 13

Borjan Milinkovic, Popa Paula3

May 13

Setting Noise in Heun Stochastic Integrator

Paula! Thank you so much! This works. Best, Boki On Wednesday, May 12, 2021 at 3:39:03 PM UTC+10 popa

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Setting Noise in Heun Stochastic Integrator

Paula! Thank you so much! This works. Best, Boki On Wednesday, May 12, 2021 at 3:39:03 PM UTC+10 popa

May 13

刘政, … WOODMAN Michael29

May 12

Some confusion in BVEP paper

Hi There appears to be a typo and Eq 6 should read x(t + dt) = x(t) + dt f(x(t), u(t), theta) + sigma

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Some confusion in BVEP paper

Hi There appears to be a typo and Eq 6 should read x(t + dt) = x(t) + dt f(x(t), u(t), theta) + sigma

May 12

刘政, WOODMAN Michael5

May 12

Using VAE-GAN to fit the parameters of Epileptor

Hi If you mean your previous question, I did not understand the notation you used. Maybe you can

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Using VAE-GAN to fit the parameters of Epileptor

Hi If you mean your previous question, I did not understand the notation you used. Maybe you can

May 12

Borjan Milinkovic, WOODMAN Michael3

May 11

Extracting interactions between only 3-4 nodes with SJ3D dynamics in Python

Thanks Marmaduke, This is incredibly helpful! Cheers, Boki On Tuesday, May 11, 2021 at 6:21:58 PM UTC

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Extracting interactions between only 3-4 nodes with SJ3D dynamics in Python

Thanks Marmaduke, This is incredibly helpful! Cheers, Boki On Tuesday, May 11, 2021 at 6:21:58 PM UTC

May 11

Borjan Milinkovic, WOODMAN Michael4

May 11

TVB use from a dedicated Spyder/conda environment

Thanks Marmaduke! Much appreciated. Cheers, Boki On Tuesday, May 11, 2021 at 4:01:55 PM UTC+10

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TVB use from a dedicated Spyder/conda environment

Thanks Marmaduke! Much appreciated. Cheers, Boki On Tuesday, May 11, 2021 at 4:01:55 PM UTC+10

May 11

Mahta Mousavi, … Wayne Wong8

May 7

Increase simulation speed

Hi Marmaduke, Now it cost me 10 hours for a individual job and but since it is all parallelized so I

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Increase simulation speed

Hi Marmaduke, Now it cost me 10 hours for a individual job and but since it is all parallelized so I

May 7

刘政, … Paola Di Maio10

May 4

A little confusion about neural mass model

Thank you Marmaduke sure but.... corpus has been growing humoungously since 2008. Can you query any

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A little confusion about neural mass model

Thank you Marmaduke sure but.... corpus has been growing humoungously since 2008. Can you query any

May 4

刘政, WOODMAN Michael10

May 4

Using Pyro or Edward to accelarate the NUTs or ADVI

Hi Yes, each of those can handle accelerated model inference, because they are based on numerical

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Using Pyro or Edward to accelarate the NUTs or ADVI

Hi Yes, each of those can handle accelerated model inference, because they are based on numerical

May 4

刘政, WOODMAN Michael5

May 3

Example data for BVEP

Hi No, the data used there are not available, because they are clinical data that have not been

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Example data for BVEP

Hi No, the data used there are not available, because they are clinical data that have not been

May 3

canthony....@gmail.com, WOODMAN Michael2

Apr 28

Units of Time in Virtual Brain Simulations

Hi In the various epileptor papers, it is suggested the model's characteristic time scale is much

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Units of Time in Virtual Brain Simulations

Hi In the various epileptor papers, it is suggested the model's characteristic time scale is much

Apr 28

刘政, WOODMAN Michael3

Apr 20

Use CUDA to accelarate BVEP model fitting

Hi Looking forward to the good news. Cheers, Barry 在2021年4月20日星期二 UTC+8 下午6:13:43<marmaduke.

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Use CUDA to accelarate BVEP model fitting

Hi Looking forward to the good news. Cheers, Barry 在2021年4月20日星期二 UTC+8 下午6:13:43<marmaduke.

Apr 20

JESUS CABRERA ALVAREZ, WOODMAN Michael2

Apr 13

MEG monitor - gain matrix

Hi, Do you have subcortical ROIs in your connectivity? Does sim.connectivity.cortical.sum() return 82

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MEG monitor - gain matrix

Hi, Do you have subcortical ROIs in your connectivity? Does sim.connectivity.cortical.sum() return 82

Apr 13

刘政, WOODMAN Michael3

Apr 11

A problem about the neural mass model defined in the node of the network

Hi Oh, sorry. I forgot in the formula it sums all the permittivity coupling. My bad. Thank you Barry

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A problem about the neural mass model defined in the node of the network

Hi Oh, sorry. I forgot in the formula it sums all the permittivity coupling. My bad. Thank you Barry

Apr 11

Mahta Mousavi, WOODMAN Michael5

Apr 9

Connectivity and region mapping

Great! Thank you very much for your help. Best Regards, Mahta On Wednesday, April 7, 2021 at 12:44:13

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Connectivity and region mapping

Great! Thank you very much for your help. Best Regards, Mahta On Wednesday, April 7, 2021 at 12:44:13

Apr 9

刘政, WOODMAN Michael4

Apr 9

How to set the value of excitability x0

Hi I would recommend learning the workflow in BVEP, as it will be easier to work with than tvb-root,

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How to set the value of excitability x0

Hi I would recommend learning the workflow in BVEP, as it will be easier to work with than tvb-root,

Apr 9

刘政, WOODMAN Michael2

Apr 9

What kind of DTI data should I choose

hi It should be a 4D image with gradient information. If you can make use of Mrtrix3 [1], the mrinfo

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What kind of DTI data should I choose

hi It should be a 4D image with gradient information. If you can make use of Mrtrix3 [1], the mrinfo

Apr 9

Julie Courtiol, … WOODMAN Michael5

Apr 8

Re: [TVB] Oscillation in ReducedWongWangExcInh model

Hi I just checked in the GUI, and for this model, the parameter ranges are limited so you can't

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Re: [TVB] Oscillation in ReducedWongWangExcInh model

Hi I just checked in the GUI, and for this model, the parameter ranges are limited so you can't

Apr 8

刘政, WOODMAN Michael11

Apr 8

How to change local connectivity due to the Anomalies in the MRI

HI Thank you! I'll look up the details of the concerned tech. Best wishes Barry 在2021年4月8日星期四 UTC

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How to change local connectivity due to the Anomalies in the MRI

HI Thank you! I'll look up the details of the concerned tech. Best wishes Barry 在2021年4月8日星期四 UTC

Apr 8

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