Anna,
On the main spm control panel use the "defaults" button and choose
"normalization" from there you can change voxel size and size of fov
reconstructed, the bounding box. Just make it square.
Robert Welsh
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Robert C. Welsh, PhD
Research Investigator
Department of Radiology
University of Michigan
(734) - 764 - 2412 (fax)
[log in to unmask]
>>> "Barnes, Anna" <[log in to unmask]> 11/27/03 1:04 PM >>>
This isn't strictly an SPM question and it also may be a completely
stupid
question but at the moment I can't see the wood for the trees :). Can
you
tell me how I can rebin a spatially normalized image so that its 128x128
and
not 79x95 the other image display software I'm using doesn't like
non-square
images.
Best regards
Anna
Anna Barnes (PhD)
Medical Imaging Technology
Amersham Health
The Grove Centre (bldg26)
White Lion Road
Amersham
Bucks
HP7 9LL
Tel: +(44) (0) 1494 54 3039
Fax: +(44) (0) 1494 54 5006
-----Original Message-----
From: Eytan Katzav [mailto:[log in to unmask]]
Sent: 26 November 2003 13:45
To: [log in to unmask]
Subject: Re: conjunction (ffx) and design matrix
Dear Christian
I think that the "crucial" thing relates to the fact that you cannot do
the
conjunctions within SPM unless you have one big SPM.mat design with all
the
subjects.
However, you can use the spmT files and make conjunctions as you wish
outside SPM following theprocedure proposed by Friston et al. for
example.
best
Eytan
On Wed, 26 Nov 2003, Christian Kaufmann wrote:
> Dear Will,
>
> some days ago you commented on
> Re: multiple subjects multiple runs fMRI
> where you pointed out how to do a conjunction analysis:
>
> > If you put data from all of your subjects into the *same* SPM
> > analysis (this is crucial) then you should be able to do a
> > conjunction over tasks, repetitions and subjects.
>
> My question refers to "this is crucial":As I understand if one intends
> to do a conjunction over different contrasts (for example to account
> for baseline effects) or over different subjects (for example to get
> an idea which effects might be typical of the population from which
> the subjects were sampled ... Friston 99, NI) one must put all data
> into the same SPM analysis. So, could you explain the crucial aspects?
>
> Thanks!
>
> Christian
>
>
> ===
> Humboldt-Universit?t zu Berlin
> Department of Psychology
> Clinical Psychology and Behavioural Neuroscience Lab
> Head: Prof. Dr. Kathmann
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> Rudower Chaussee 18
> 12489 Berlin
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