[FieldTrip] convert mri headmodel from ctf to mni

Tyler Grummett tyler.grummett at flinders.edu.au
Tue Jun 3 09:43:06 CEST 2014


?JM,


This worked well. I have used it in this order:


ft_read_mri

ft_volumenormalise

ft_volumereslice


Is that the correct order? Or doesnt it matter as such?


Tyler


*************************

Tyler Grummett ( BBSc, BSc(Hons I))
PhD Candidate
Brain Signals Laboratory
Flinders University
Rm 5A301
Ext 66124
________________________________
From: fieldtrip-bounces at science.ru.nl <fieldtrip-bounces at science.ru.nl> on behalf of jan-mathijs schoffelen <jan.schoffelen at donders.ru.nl>
Sent: Tuesday, 3 June 2014 4:49 PM
To: FieldTrip discussion list
Subject: Re: [FieldTrip] convert mri headmodel from ctf to mni

Hi Tyler,

Try using ft_volumenormalise on your variabl mri.

JM

On Jun 3, 2014, at 3:04 AM, Tyler Grummett <tyler.grummett at flinders.edu.au<mailto:tyler.grummett at flinders.edu.au>> wrote:

hello fieldtrippers,

I recently worked out how to create virtual channels using beamformer and an atlas.

However, now i have the problem of plotting the data using ft_sourceplot.

The atlas has mni coordinates, but the mri headmodel has ctf coordinates.

atlas =

            dim: [91 109 91]
            hdr: [1x1 struct]
      transform: [4x4 double]
           unit: 'mm'
         tissue: [91x109x91 double]
    tissuelabel: {116x1 cell}
       coordsys: 'mni'

mri =

      anatomy: [256x256x256 double]
          dim: [256 256 256]
    transform: [4x4 double]
     coordsys: 'ctf'
         unit: 'mm'
          cfg: [1x1 struct]


Is there a way to change either so that I can plot the data?

Tyler

*************************

Tyler Grummett ( BBSc, BSc(Hons I))
PhD Candidate
Brain Signals Laboratory
Flinders University
Rm 5A301
Ext 66124
_______________________________________________
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fieldtrip at donders.ru.nl<mailto:fieldtrip at donders.ru.nl>
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Jan-Mathijs Schoffelen, MD PhD

Donders Institute for Brain, Cognition and Behaviour,
Centre for Cognitive Neuroimaging,
Radboud University Nijmegen, The Netherlands

Max Planck Institute for Psycholinguistics,
Nijmegen, The Netherlands

J.Schoffelen at donders.ru.nl<mailto:J.Schoffelen at donders.ru.nl>
Telephone: +31-24-3614793

http://www.hettaligebrein.nl

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