Hesam wrote:
> Will !
>
> I was just trying to align some fMRI datasets using SPM5. The thing is
> that once I "Realign and Unwarp" the data set and saved the resliced
> images. Afterwards I once again estimated the realigned the unwarped
> dataset to see how good it is realigned. Surprisingly the surves that
> I recieved is almost the same as the raw data ! It means that
> almost nothing has happened in previous step (Realign and Unwarp)!
>
I'm no expert here but perhaps there was little or no subject movement !
Have a look at the estimated movement
parameters.
Maybe others would like to comment.
Best, W.
> Would you please check it out on your system with one of your datasets
> and let me know the results?
>
> Regards
>
> Hesam
>
>
>
> Will Penny <[log in to unmask]> wrote:
>
> Check this out:
>
> http://www.fil.ion.ucl.ac.uk/spm/doc/manual.pdf
>
> Best,
>
> Will.
>
> --
> William D. Penny
> Wellcome Department of Imaging Neuroscience
> University College London
> 12 Queen Square
> London WC1N 3BG
>
> Tel: 020 7833 7475
> FAX: 020 7813 1420
> Email: [log in to unmask]
> URL: http://www.fil.ion.ucl.ac.uk/~wpenny/
>
>
>
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William D. Penny
Wellcome Department of Imaging Neuroscience
University College London
12 Queen Square
London WC1N 3BG
Tel: 020 7833 7475
FAX: 020 7813 1420
Email: [log in to unmask]
URL: http://www.fil.ion.ucl.ac.uk/~wpenny/
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