Hi,
would then co-registering the two brains in Flirt, using one of them as a reference be the appropriate method to acquire perfectly aligned brains?
Cheers,
Shireen
-----Wiadomość oryginalna-----
Od: FSL - FMRIB's Software Library w imieniu Steve Smith
Wysłano: N 2008-02-10 17:30
Do: [log in to unmask]
Temat: Re: [FSL] Siena and allignment
Hi, SIENA is all about comparing the same brain from two different
timepoints after they have been aligned to each other as well as
possible. So yes, different alignments between the two images are very
likely to affect the output.
Cheers.
On 9 Feb 2008, at 14:50, Shireen, Kwiatkowska wrote:
> Hello!
>
> I would like to know how does allignment influence Siena results. I
> have run Siena with the use of the -m option on differently alligned
> brains (all other parameters constant) and have obtained slightly
> different results. Could someone briefly explain why?
>
> Cheers,
>
> Shireen
>
>
> -----Original Message-----
> From: FSL - FMRIB's Software Library on behalf of Jessica Kirkland
> Sent: Fri 2/8/2008 10:24 PM
> To: [log in to unmask]
> Subject: [FSL] Modeling a motor response
>
> Hi everyone,
>
> I am interested in modeling a button-press response, primarily to
> check for
> associated motor activation in several subjects who have data that
> looks
> somewhat sketchy. I'm wondering if anyone has done this, and if you
> have
> recommendations about how to model this for a quick and dirty
> analysis. I am
> unsure of the duration I should use to allow for modeling the motor
> response. Thank you in advance for the advice!
>
> Jessica
>
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR 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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