On 9/19/2020 10:31 AM, Mason Wells wrote:
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Hi Experts,
I wonder if anyone can give me any advice on a couple of things.
- I have some ICA spatial maps which I have resampled to the surface
using bbregister and vol2surf. I can load this data in Freeview as a generic overlay (see attched). I also have a label file which is a combination of several visual areas. What I want to do is use this label as a mask and remove any activation from the ICA map overlay which falls outside of the label/mask. Is this possible using Freesurfer? In FSL I have been using fslmaths with -mas flag.
What form are your labels in? If they are just binary masks, then you can use mri_mask
- My next question is whether it is possible to run spatial
correlations on the surface. For example, I would like to know how well my ICA component maps match with some visual areas labels I have created in Freesurfer. In FSL i have been using fslcc to run these correlations between my ROIs and the spatial maps in the volume.
You want to compute a correlation coefficient? Or a dice score?
Thanks in advance, Mason
*Mason T Wells, MSc*
*PhD student*
School of Optometry and Vision Sciences
& Cardiff University Brain Research
Imaging Centre (CUBRIC), School of Psychology
Cardiff University
Cardiff
CF24 4HQ
UK
*/Email/*: WellsMT1@cardiff.ac.uk mailto:WellsMT1@cardiff.ac.uk
*/Tel/*: 02920 879628
/*Web*/: Cardiff University webpage https://www.cardiff.ac.uk/people/research-students/view/974214-
*Mason T Wells, MSc*
*Myfyriwr PhD*
Yr Ysgol Optometreg a Gwyddorau’r Golwg
& Canolfan Ymchwil Delweddu’r Ymennydd Prifysgol Caerdydd (CUBRIC), Yr Ysgol Seicoleg
Prifysgol Caerdydd
Heol Maindy
Caerdydd
CF24 4HQ
DU
*/E-bost/*: WellsMT1@caerdydd.ac.uk mailto:WellsMT1@caerdydd.ac.uk
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