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 Clustering Requirement in Overlay2?		  New Topic  Reply to Topic
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wilson
Starting Member

USA
3 Posts
Posted - Oct 07 2003 :  4:18:31 PM  Show Profile  Visit wilson's Homepage  Reply with Quote
Does anybody know if there is a version of Overlay2 out there that includes a clustering requirement for functional overlays?

I would like to be able to specify clustering thresholds for each overlay in addition to t-value thresholds (e.g., t > 3.5 AND k = 12 contiguous voxels) - similar to SPM.

Any information would be greatly appreciated.

Cheers,

Kevin

charles.michelich
BIAC Alum

USA
183 Posts
Posted - Oct 07 2003 :  4:40:45 PM  Show Profile  Reply with Quote
Kevin,

I do not know of any version of overlay2 (or showsrs2) that implements a clustering requirement.

Chuck
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tankersley
BIAC Alum

USA
143 Posts
Posted - Jan 17 2007 :  3:24:21 PM  Show Profile  Reply with Quote
I have several rois that I created using overlay2. I can load the rois:

>>L_dorsal=load('L_dorsal.roi','roi','-mat');

but when I try to use roi2mask I get the following error:

>> roi2mask(L_dorsal)
??? Error using ==> roi2mask
ROI is not a valid BIAC format roi!


Is there something I need to do to get the roi into valid BIAC format?

Thanks,

Dharol
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petty
BIAC Staff

USA
453 Posts
Posted - Jan 17 2007 :  3:29:30 PM  Show Profile  Reply with Quote
try

roi2mask(L_dorsal.roi)
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tankersley
BIAC Alum

USA
143 Posts
Posted - Jan 17 2007 :  3:31:17 PM  Show Profile  Reply with Quote
Thanks :)

Dharol
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