Hello Samantha, I'm forwarding your two recent inquiries to the HCP Users email group, which contains a very active community of consortium users and other researchers who are actively using the data. If you are not a member, I highly recommend signing up for the email list here:
http://humanconnectome.org/contact/#subscribe Regards, Will On Tue, Oct 7, 2014 at 2:20 PM, Cunningham, Samantha (NIH/NIAAA) [F] < [email protected]> wrote: > Hello, > > I recently downloaded unprocessed diffusion data from the Human Connectome > database (WU-Minn HCP Data à 500 subjects à 10 unrelated subjects). > However, I am having a hard time understanding what the b-values are for > each of the 6 datasets included for each subject. > > > > The Reference Manual specifies that the 6 dMRI scans include 3 b-values x > two phase encoding directions, but for “100307_3T_DWI_dir97_LR.bval” for > example, the file seems to contain more than 3 b-values (I have attached a > screenshot). I am used to having gradient files with all the same b-values > (except for the b0 value)—I am not familiar with the method of using many > different b-values in one run. Can you please shed light on this or provide > a reference article that may be helpful? > > > > Thank you for your time and help! > > Samantha Cunningham, Ph.D. > > Postdoctoral Fellow > > National Institutes of Health|NIAAA|LNI > > [email protected] > > > _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
