Re: [Freesurfer] thresh_zstat1.img

[Kevin Teich]

Hi,

Have you tried changing the threshold parameters, in the 
View-Configure-Overlay dialog box?


On Fri, 19 Nov 2004, Joongnam Yang wrote:

 Hi all,
 
 I did,
 
 (1) use mri_vol2surf to convert thresh_zstat*.img into thresh_zstat1-lh.w
 (2) use the *.w file to overlay it onto flattened surface. 
 
 The resulting overlaid image (TkSurfer) doesn't show as much activation as
 that of thresh_zstat*.img (in FEAT).
 I see only a few tiny dots, not large areas of activation.
 Coud someone tell me in which direction I should explore it further?
 
 Nam.
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-- 
Kevin Teich


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Re: [Freesurfer] thresh_zstat1.img

[Joongnam Yang]

Thanks, Kevin

 Have you tried changing the threshold parameters, in the 
 View-Configure-Overlay dialog box?

The manual is very coarse on that. I've tried various combinations of the
three 
parameters there. If you know the rule of combination, Please let me know.

Nam.

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Re: [Freesurfer] thresh_zstat1.img

[Joongnam Yang]

 Did you visually check the registration of the functional to the
structural?

The registration using tkregister2 produces three files
func2struc.mat
func2struc.hdr
func2struc.img,

I've tried to load func2struc.hdr in TkSurfer, but it crashes.
Again, I don't understand what you do when you visual check registration.
I am new to fMRI, please be more specific.

Thanks.
Nam.
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Re: [Freesurfer] thresh_zstat1.img

[Joongnam Yang]

Hi all,

In TkSurfer, is there a way of saving *.w files (or any other images for
that matter) into a printable format, so that I can print them out?

Thanks.
Nam.

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Re: [Freesurfer] thresh_zstat1.img

[Brendan Connell]

On Fri, 19 Nov 2004, Joongnam Yang shaped the electrons to say:
 In TkSurfer, is there a way of saving *.w files (or any other images for
 that matter) into a printable format, so that I can print them out?

Once they're loaded, you can save screenshots.  More information here:

http://surfer.nmr.mgh.harvard.edu/faqomatic/cache/40.html

-Brendan

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Re: [Freesurfer] thresh_zstat1.img

[Bruce Fischl]

mris_convert file.w file.asc will do it I think.



Bruce

On Fri, 19 Nov 2004, Joongnam Yang 
wrote:

 Hi all,
 
 In TkSurfer, is there a way of saving *.w files (or any other images for
 that matter) into a printable format, so that I can print them out?
 
 Thanks.
 Nam.
 
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