help > RE: Longitudinal analysis using sophisticated approach !
Sep 27, 2024  05:09 PM | Chihhao Lien
RE: Longitudinal analysis using sophisticated approach !

Hi Martin, 


For your first question, it depends on if you expect structural changes to exist over time. If yes, in general, it may be better to use the averaged ("unbiased") T1 template.


However, I have read a longitudinal study in MCI that normalized both sessions with the T1 baseline template.


For the second question, in case you refer to data preprocessed by the CONN toolbox, yes, you can find the preprocessed data in the output folder. For instance, swau*.nii ---> smoothed, normalized, slice timing corrected, unwarped


Best regards,


Chih-Hao Lien


Originally posted by Martin Juneja:



Thank you so much Chih for sharing the previous discussion you had on this topic. Thats very helpful.


If I understood that correctly, I guess I can go ahead with using same baseline structural MRI images from session 1 in order to preprocess my two session resting-state fMRI data, correct? (rather than using structural images from corresponding sessions)


If so, I am assuming I can export the smoothed images for external analysis outside CONN, correct?


Any help would be greatly appreciated.


Best,
M



 

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TitleAuthorDate
Martin Juneja Sep 26, 2024
Chihhao Lien Sep 26, 2024
Martin Juneja Sep 27, 2024
RE: Longitudinal analysis using sophisticated approach !
Chihhao Lien Sep 27, 2024