Dear Michael,
Thank you for your answer.
I am novice with SPM and I run my analysis using SPM GUI . Can you,
please let me know what is the matlab command line that I have to use
to run "SPM.mat estimation" and then I can check for the error in debug
mode?
Thank you.
Salem
Le 29/11/2010 23:04, Michael T Rubens a écrit :
> Salem,
>
> Not including motion parameters in your design should certainly not
> result in the error you received, that is being caused by something
> else (thought it might be related to changes you made to remove motion
> parameter input into the glm). There are a few things that could cause
> that error.
>
> This line of code is invaluable in debugging:
>
> dbstop if error
>
> place it at the beginning of the script and matlab will kick out to
> debug mode from the error, then you have all the variables still in
> the workplace and you can backtrack to find the nature of your
> problem.
>
> Also, its not ok to include motion parameters for some subjects and
> not in others.
>
> And, reslicing/realignment is far from a perfect science. Motion
> correction will induce artefacts within the data. Since the correction
> is based on motion, this noise should hopefully be reduced by
> including the motion parameters.
>
> Cheers,
> Michael
>
--
Salem Boussida
Doctorant - Neuroimagerie par résonance
magnétique nucléaire fonctionnelle
Plateforme RMN des Systèmes Biologiques, UR 370 QuaPA
Centre de recherche INRA de CLERMONT-FERRAND/THEIX
63122 SAINT-GENES-CHAMPANELLE - FRANCE
Tel : 04-73-62-45-21
Fax : 04-73-62-40-89
E-mail : [log in to unmask]
|