Dear Vishwa,
You do not mention the slice thickness but your diagnosis is almost certainly correct. There is a large number of messages on the topic in the archives (which are searchable: http://www.jiscmail.ac.uk/cgi-bin/wa.exe?S1=spm).
Briefly, you may be able to get a normalisation of sorts by 1) coregistering your slices (what are they?) to an anatomical dataset of the same subject, normalising that and applying the normalisation parameters to your slices, or increasing the overlap of your data and the template ( 2) setting the origin to ~AC, 3) adjusting any rotations of your datasets), and /or 4) decreasing the amount of warping allowed.
If everything fails, for future experiments 16 slices and 500 volumes may be preferable ;-)
Hope this helps,
Alexander
-----Original Message-----
From: SPM (Statistical Parametric Mapping) [mailto:[log in to unmask]]On
Behalf Of Vishwadeep Ahluwalia
Sent: 27 June 2005 14:12
To: [log in to unmask]
Subject: Re: [SPM]
Hi,
I'm a student and a novice in using SPM. I'm getting an error while
normalizing my 8 brain slices 1000 volumes data. error reads " not
enough overlap between images to get a solution. try checking header
information".
it gives the same error when i tried to coregister instead. i suspect
the fact that my 8 slices do not cover the entire brain has got
something to do with the error. please advise.
-Vishwa
PS: SPM2,SPM99 and Medx functional modules give the same error.
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