2 simple questions

[Andrew Smart]

Hi Andres,
I have had exactly the same "cant map image file" problem tyring to plot beamforming data on the SPM2 MRI subject. However, the problem only seems to come up using the volumesegment function, if you plot the data without calling volumesegment Fieldtrip can open the MRI image file (presumably without a call to SPM2?). But in this case Fieldtrip created a headmodel based on the subject's headshpae from a *.pos file and the gradiometer info from CTF.

But does anyone know if the "cant map image file" error is because of the specific Matlab version and SPM2 ?

andy



----- Original Message -----
From: Andres Posada <Andres.Posada at PSE.UNIGE.CH>
Date: Wednesday, August 1, 2007 9:15 am
Subject: Re: [FIELDTRIP] 2 simple questions
To: FIELDTRIP at NIC.SURFNET.NL


> Dear Robert,
>
>  Thanks for your advices, now it is working well!
>  But I tried to apply beamforming methods in two different computers with
>  SPM2 (and the template T1.mnc). I one it woks and in the other there
> is a
>  error message:
>
>  performing the segmentation on the specified volume
>  ??? Cant map image file.
>
>  Error in ==> spm_smoothto8bit>smoothto8bit at 51
>          	img      = spm_slice_vol(V,spm_matrix([0 0 i]),V.dim(1:2),0);
>
>  Error in ==> spm_smoothto8bit at 14
>  	VO = smoothto8bit(V,fwhm);
>
>  Error in ==> spm_segment>get_affine_mapping at 233
>  	VFS = spm_smoothto8bit(VF(1),aflags.smosrc);
>
>  Error in ==> spm_segment>init_sp at 567
>  MM          = get_affine_mapping(VF,PG,flags.affreg);
>
>  Error in ==> spm_segment at 91
>  SP         = init_sp(flags.estimate,VF,PG);
>
>  Error in ==> volumesegment at 246
>    spm_segment(Va,cfg.template,flags);
>
>  Error in ==> temp at 7
>  [segmentedmri]      = volumesegment(cfg, mri);
>
>  The only difference between the two computers is the Matlab version.
> In one,
>  the working one, is version 7 R14 SP1; in the other (the error
> message), is
>  version 7 R14 SP3.
>  Do you know if the newest version of matlab is incompatible with SPM2
> and
>  FieldTrip.
>  Thanks
>  Andres
>
>  ----------------------------------
>  The aim of this list is to facilitate the discussion between users of
> the FieldTrip  toolbox, to share experiences and to discuss new ideas
> for MEG and EEG analysis. See also http://www.ru.nl/fcdonders/fieldtrip.
>

----------------------------------
The aim of this list is to facilitate the discussion between users of the FieldTrip  toolbox, to share experiences and to discuss new ideas for MEG and EEG analysis. See also http://listserv.surfnet.nl/archives/fieldtrip.html and http://www.ru.nl/fcdonders/fieldtrip.