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help > RE: resting state analysis: pre- & post sessions
Nov 15, 2014 02:11 AM | Alfonso Nieto-Castanon - Boston University
RE: resting state analysis: pre- & post sessions
Hi Jisook,
Differences in head position between the two sessions are handled by the realignment step during Preprocessing, and that does not require the acquisition of a second structural volumes, so for your analyses I would simply enter the first-session structural volume in the Setup.Structural tab for each subject (but see this thread http://www.nitrc.org/forum/forum.php?thread_id=4955&forum_id=1144 for some options in the case where you could expect to see structural differences in the subject's brains between the sessions; e.g. longitudinal analysis ranging several months or years)
Hope this helps
Alfonso
Originally posted by Ji Sook Park:
Differences in head position between the two sessions are handled by the realignment step during Preprocessing, and that does not require the acquisition of a second structural volumes, so for your analyses I would simply enter the first-session structural volume in the Setup.Structural tab for each subject (but see this thread http://www.nitrc.org/forum/forum.php?thread_id=4955&forum_id=1144 for some options in the case where you could expect to see structural differences in the subject's brains between the sessions; e.g. longitudinal analysis ranging several months or years)
Hope this helps
Alfonso
Originally posted by Ji Sook Park:
Hi
I am using Conn 14 v. to analyze resting state functional connectivity.
There were two sessions of resting state scans: pre- and post-test sessions.
So, I have two structural and functional images for each subject.
Although I set up two sessions in Conn, the Conn 14 v. allows only one slot to upload one structural image per person
(I can add two functional images for each session separately, though).
I am wondering if it could be an issue for resting state analyses since the head positions can be slightly different at each session.
First, I want to do seed-based rs-FC analyses using a paired t test to compare differences between pre-and post-test sessions.
If not, that would be great! But, if this is a problem, please let me know how to resolve this issue.
Thank you in advance!
Jisook
I am using Conn 14 v. to analyze resting state functional connectivity.
There were two sessions of resting state scans: pre- and post-test sessions.
So, I have two structural and functional images for each subject.
Although I set up two sessions in Conn, the Conn 14 v. allows only one slot to upload one structural image per person
(I can add two functional images for each session separately, though).
I am wondering if it could be an issue for resting state analyses since the head positions can be slightly different at each session.
First, I want to do seed-based rs-FC analyses using a paired t test to compare differences between pre-and post-test sessions.
If not, that would be great! But, if this is a problem, please let me know how to resolve this issue.
Thank you in advance!
Jisook
Threaded View
| Title | Author | Date |
|---|---|---|
| Ji Sook Park | Oct 24, 2014 | |
| Alfonso Nieto-Castanon | Nov 15, 2014 | |
| Ji Sook Park | Nov 18, 2014 | |