Re: [HCP-Users] Test-retest reliability / Intra vs inter subject variability of HCP data

gmail.com> Date: Friday, January 29, 2016 at 1:50 PM To: "Harms, Michael" <mha...@wustl.edu> Cc: "hcp-users@humanconnectome.org" <hcp-users@humanconnectome.org> Subject: Re: [HCP-Users] Test-retest reliability / Intra vs inter subject variability of HCP data

Re: [HCP-Users] Test-retest reliability / Intra vs inter subject variability of HCP data

Thank you all! Michael, why would you expect the two diffusion scans using the different phase encoding directions to be different? Or do you mean more as in that there is not enough time between 'test' and 'retest'? Joelle On Thu, Jan 28, 2016 at 10:13 PM, Harms, Michael

[HCP-Users] Test-retest reliability / Intra vs inter subject variability of HCP data

Hi HCPers. I'm curious about the test-retest reliability and the inter subject versus intra subject variability of the HCP resting functional and diffusion data, particularly whether anyone has looked at this in SC and FC connectomes? To check this out in the rsFC data is simple, using the two

Re: [HCP-Users] Test-retest reliability / Intra vs inter subject variability of HCP data

Since most of HCP has each diffusion scan run twice (once each) with different phase encode directions, you could analyze each of those separately (only using the B0s from the opposite phase encode direction). Then perform whatever test-retest tests you are interested in. Note, that you will end

Re: [HCP-Users] Test-retest reliability / Intra vs inter subject variability of HCP data

Data from several dozen test-retest subjects (I don’t recall the exact number) is currently being processed and will be part of the S1200 release, currently targeted for mid-spring. David VE > On Jan 28, 2016, at 6:52 PM, Glasser, Matthew wrote: > > There is some data

Re: [HCP-Users] Test-retest reliability / Intra vs inter subject variability of HCP data

There are about 45 subjects that went through the entire HCP protocol a 2nd time that will be a good way to assess the reliability of the diffusion data when released later this spring. Note that using one PE polarity as “test” and the other PE polarity as “retest” would not really be testing