Hello, Smith and FSL expert,
Thank for your reply. Since I am not familiar with the fmri setting, can
you tell me the detail setting about this particular case ? Such as the
TR, high pass filter cutoff and the setting in stats ? I will share the
result if it can work. Thanks
JLH
-----Original Message-----
From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On
Behalf Of Stephen Smith
Sent: Tuesday, October 15, 2002 7:00 PM
To: [log in to unmask]
Subject: Re: [FSL] parameter about the group analysis by FEAT
A scary can of worms - does FEAT work on PET/SPECT? Well - we haven't
tested it ONCE on PET data, so seems risky to make any promises.....but
in
theory.....should be ok.....
There are bound to be practical issues that come up - will be very
interested to see how you get on. The new FEAT5 group stats stuff
(FLAME)
should add value to group stats with PET just like with FMRI, but as I
said, we've not tested it at all. Your particular case (N=7/N=43) could
well be a good example of when FLAME is better than simple OLS
(ordinary-least-squares, ie dumb "random effects").
Thanks, Steve.
On Tue, 15 Oct 2002, Jung Lung Hsu wrote:
> Dear FSL experts,
> I have a simple question about the FSL. I have 2 groups of patients by
PET
> study. One is disease (N = 7)and another is control (N = 43). I like
to
> know the difference between the disease group and control. Is it
possible
> to use the FEAT to do group analysis ? If so, what is the detail
parameter
> I should enter in the FEAT program ? Thanks
> JLH
>
Stephen M. Smith
Head of Image Analysis, FMRIB
Oxford University Centre for Functional MRI of the Brain
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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