Hi,
In general the basis of bold based fMRI activation studies is the
collection of time series of data. In the simplest you have a "active"
state and a passive "baseline" state which comprise the time series.
The principle is to subtract the baseline state from the active state
and notice where the difference is non-zero. Of course this is done in a
more elegant fashion using the general-linear model and testing the
subtraction using more sophistaticated stastical methods.
I suggest you read up on these methods from the links found on the SPM
web site or the FSL website.
SPM:
http://www.fil.ion.ucl.ac.uk/spm/doc/
FSL:
http://www.fmrib.ox.ac.uk/fsl/
Best of luck,
Robert
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Robert C. Welsh, PhD
Research Investigator
Department of Radiology
University of Michigan
(734) - 764 - 2412 (fax)
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>>> mawia hassan <[log in to unmask]> 07/04/06 2:47 PM >>>
Hello list members:
I need some help.
If I have one scan image with 640 slice(64 64 640) and added
synthetic activation (square wave smoothed with low pass filter) to
(3x3)region(29,29,:),(29,30,:),(29,31,:),(30,29,:),(30,30,:),(30,31,:),(31,29,:),(31,30,:),(31,31,:)
in image
I want to analysis this data by use(SPM) the 1th level ,I try to do
that but but I have an error,because in condation want more scans and I
have one scan.
What shall I do? to see this activation.
Many thanks,,,
Mawia
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