Hi,
if you want to include movement parameters as regressors, I think it is better not to use MoCo series, unless proving that realign parameters would be the same in both cases. If the correction for movement on the scanner modifies the realign parameters, these parameters could be unrealistic (very small) and, hence, a bad model to regress out the movement-related intensity variations.
Hope this helps
Carles Falcon
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De: SPM (Statistical Parametric Mapping) [[log in to unmask]] en nom de SUBSCRIBE SPM Wilfried Scharmüller [[log in to unmask]]
Enviat el: dimarts, 23 / juliol / 2013 16:44
Per a: [log in to unmask]
Tema: [SPM] MoCo Series and SPM realingment
Hi to all!!
I have a question about the Siemens MoCo Series and SPM´s realingment.
I´m just wondering if it is recommendet to use the MoCo time series (not the online (PACE) but the offline affine correction) and additionally using the SPM realingment step with the 6 motion parameters which spm is calculating.
Am i right that this will be "too much" and maybe will give wrong results? I´m really not sure!
Will be nice to get some informations!
Best regards,
Wilfried
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