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help > RE: About direct segmentation, normalization
Oct 27, 2022 08:10 PM | Alfonso Nieto-Castanon - Boston University
RE: About direct segmentation, normalization
Dear Tomoki
The "direct normalization" option in CONN will normalize the functional and structural data separately / independently. The "indirect normalization" option in CONN will do what you describe, coregistering first the anatomical and functional data, then normalizing the structural data, and then applying that same transformation to the funtionals. See Preparing fMRI Data for Statistical Analysis. arXiv. doi:10.48550/arXiv.2210.13564 for more details
Best
Alfonso
Originally posted by tomoki kaneko:
The "direct normalization" option in CONN will normalize the functional and structural data separately / independently. The "indirect normalization" option in CONN will do what you describe, coregistering first the anatomical and functional data, then normalizing the structural data, and then applying that same transformation to the funtionals. See Preparing fMRI Data for Statistical Analysis. arXiv. doi:10.48550/arXiv.2210.13564 for more details
Best
Alfonso
Originally posted by tomoki kaneko:
Dear Alfonso, dear developers of the conn
toolbox,
I use conn to analyze the functional connectivity. I always use the default pipeline using direct segmentation and normalization.
In SPM12, I coregister structural T1-weighted image to mean functional image using 'coregister estimate', and normalize coregistered T1-wi image to obtain the deformation field. Then I normalize the functional image using the deformation field ( using "normalise write").
When I adapt the direct segmentation to functional and structural images, are the two processing pipelines（functional, and structural processing) interrelated each other? Or is there no interrelation between them?
I want to know the relation between the functional and structural preprocessing.
Thank you in advance!
I use conn to analyze the functional connectivity. I always use the default pipeline using direct segmentation and normalization.
In SPM12, I coregister structural T1-weighted image to mean functional image using 'coregister estimate', and normalize coregistered T1-wi image to obtain the deformation field. Then I normalize the functional image using the deformation field ( using "normalise write").
When I adapt the direct segmentation to functional and structural images, are the two processing pipelines（functional, and structural processing) interrelated each other? Or is there no interrelation between them?
I want to know the relation between the functional and structural preprocessing.
Thank you in advance!
Threaded View
| Title | Author | Date |
|---|---|---|
| tomoki kaneko | Oct 26, 2022 | |
| Alfonso Nieto-Castanon | Oct 27, 2022 | |
| tomoki kaneko | Oct 29, 2022 | |