Dear Katja,
> Thank you, Scott. I've tried visualization with the corresponding
> spmT*.img files and it looks much better. Can someone tell me which
> quantity is displayed in which unit in these files? Using the color
> bar in Caret, there are differently colored brain areas with values
> ranging from 0 to 6.2. What does that mean?
The voxel values in the spmT images are t-values, while the values in spmF are F values. If you know the df's, you can easily threshold these images by choosing an appropriate t-value.
Good luck,
Karsten
--
-------------------------------------------------------------
Karsten Specht, PhD
Department of Biological and Medical Psychology
& National Competence Centre for functional MRI
University of Bergen
Jonas Lies vei 91
5009 Bergen
Norway
Tel.: +47-555-86279
Fax: +47-555-89872
[log in to unmask]
http://fmri.uib.no/
|