I have a rookie question regarding free surfer after going through the excellent course on youtube

First time I know the free surfer does the reconstruction on the anatomical scan (eg., T1t1_mprage_sag_p2_iso.nii)

I see 3 other files in my data that were never used in the tutorials (SpinEchoFieldMap_AP/PA.nii, AHead_Scout_32ch-head-coil.nii, Phoenix_Document.nii). I am wondering when they were needed. I read about them just never saw them used. 

Thanks,

Reuben N. Addison

Postdoctoral Fellow

Brain Recovery Lab

MGH Institute of Health Professions

Charlestown Navy Yard | 36 1st Avenue, Boston MA 02129

p. 225-439-5354 | raddison@mghihp.edu