External Email - Use Caution Dear FreeSurfer Developer,
Hi. Thanks to FreeSurfer, I could perform surface-based activation analysis with FSFAST. Now I want to do surface-based functional connectivity analysis. For the sake of consistency, I want to use the same nuisance regressors as used in FSFAST. Unfortunately I'm stuck in motion correction parameters. According to https://secure-web.cisco.com/10LyHLSQ2Psfux7V-2TqU0TpTUpRE9gROQ8dm_KryluL_QNU55nhxXetOytBet_fQTG2A2PoLAke5cI9GoJ_eOzKwcQtM7JYw9WYkhhQtt4s_DvZSfuBoKyguaDrK0mk0JuETegFDP3ZyvD9qyw4cHTRZQb4vlDoArkNwd9vCCghIRn9t4xKTpeh9V8rLHllL_HSPRV5m0aF_axLuq8MDNrWo5dzq5hejqIK9sN2xGbSggauWRBsUhLpwYiivhVBn7KdQOMfU5Fu6_mxwrCIiNvR4h-Ppkv4hJ0XwVF4Yl9PZKclgLeYyDKzb_0D9qDTnFRh9CGp5eFa_0qD3zHhSSA/https%3A%2F%2Fsurfer.nmr.mgh.harvard.edu%2Ffswiki%2FFsFastTutorialV6.0%2FFsFastPreProc%23MotionCorrection.28MC.29, motion correction parameters are stored in mcprextreg. Since there are 6 columns, I guess they are 3 translations and 3 rotations. On the other hand, none of them are in mcAll, X.mat. What are the 18 motion correction parameters in X.mat? and which motion correction parameters are used as nuisance regressors in FSFAST? Thanks in advance. Kind regards, Andy (Junghyun) Kim
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