Re: [Freesurfer] Global Signal Scaling in FSFAST Pipeline

2017-12-11 Thread Taylor, Johnmark
Never mind, found the answer online, sorry about that! On Mon, Dec 11, 2017 at 2:13 PM, Taylor, Johnmark < johnmarktay...@g.harvard.edu> wrote: > Hello, > > When using preproc-sess and selxavg3-sess, how is global mean scaling > handled? Is the session-wide (4D) mean subtracted, is each volume's

Re: [Freesurfer] Global Signal Scaling in FSFAST Pipeline

2017-12-11 Thread Douglas Greve
The entire 4D volume is rescaled by the 4D mean. On 12/11/17 2:13 PM, Taylor, Johnmark wrote: Hello, When using preproc-sess and selxavg3-sess, how is global mean scaling handled? Is the session-wide (4D) mean subtracted, is each volume's mean subtracted, or neither? Thank you very much,

[Freesurfer] Global Signal Scaling in FSFAST Pipeline

2017-12-11 Thread Taylor, Johnmark
Hello, When using preproc-sess and selxavg3-sess, how is global mean scaling handled? Is the session-wide (4D) mean subtracted, is each volume's mean subtracted, or neither? Thank you very much, JohnMark ___ Freesurfer mailing list