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looking further into the archives, I see that the -sdf flag can be used. I’m still uncertain about the -ngroups flag. I see at least a couple other users have asked about this but I don’t see a response. In the present case, if there are 60 slices and they are accelerated by a factor of 6, does one specify -ngroups 6 or -ngroups 10?On Jun 2, 2019, at 19:46, Joseph Dien <jdien07@mac.com> wrote:_______________________________________________External Email - Use Caution
Hi Doug,I’m happy to see that FreeSurfer6 provides enhanced support for slice timing. I’m trying to run it on some multi-slice data. May I ask you for some guidance on how to use the new preproc-sess options? As I understand it, I would specify “-ngroups 10” because the data were collected in ten groups of six slices at a time? I’m not sure how to specify “-sliceorder”. Slice times are below. Thanks for any help you can provide.Joe0877.500000000000502.5000000000001251005627.500000000000252.5000000000001130752.500000000000377.5000000000000877.500000000000502.5000000000001251005627.500000000000252.5000000000001130752.500000000000377.5000000000000877.500000000000502.5000000000001251005627.500000000000252.5000000000001130752.500000000000377.5000000000000877.500000000000502.5000000000001251005627.500000000000252.5000000000001130752.500000000000377.5000000000000877.500000000000502.5000000000001251005627.500000000000252.5000000000001130752.500000000000377.5000000000000877.500000000000502.5000000000001251005627.500000000000252.5000000000001130752.500000000000377.500000000000--------------------------------------------------------------------------------
Joseph Dien, PhDSenior Research ScientistDepartment of Human Development and Quantitative MethodologyUniversity of Maryland, College Park
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