The files that Jenn pointed to are the stimulus MASKS, which of course is the most important aspect of the retinotopy stimulus, but it is worth noting that the stimulus itself is not a standard checkerboard, but a rapidly changing collage of real-world objects, faces, etc. You can find more information about the stimulus here: http://kendrickkay.net/analyzePRF/
-Keith On Fri, Dec 23, 2016 at 12:50 PM, Elam, Jennifer <[email protected]> wrote: > Hi Bo Yong, > > Attached is the 7T Retinotopy protocol off the scanner and here is a > summary of scan parameters: > > > > The stimulus size/diameter was 16.0 deg for HCP 7T, which is especially > important for the retinotopy data. This is calculated from these > measurements: > 101.5cm eye to screen, 28.5 for stimulus diameter > which means > > >> atan(28.5/2/101.5)/pi*180*2 > ans = > 15.9835095188501 = 16 degrees > > The retinotopy stimulus files are available here: > https://db.humanconnectome.org/app/action/ChooseDownloadResources? > project=HCP_Resources&resource=7T_Movies&filePath=retinotopy_stimulus.zip > > > Hopefully this gets you most of the information that you need. Please let > me know what other info you need and I or Keith will dig it up. > > > Best, > > Jenn > > > Jennifer Elam, Ph.D. > Scientific Outreach, Human Connectome Project > Washington University School of Medicine > Department of Neuroscience, Box 8108 > 660 South Euclid Avenue > St. Louis, MO 63110 > 314-362-9387 > [email protected] > www.humanconnectome.org > > > > ------------------------------ > *From:* [email protected] <hcp-users-bounces@ > humanconnectome.org> on behalf of Bo Yong Park <[email protected]> > *Sent:* Thursday, December 22, 2016 11:22 PM > *To:* [email protected] > *Subject:* [HCP-Users] 7T retinotopy MRI scanning sequence > > > To HCP users. > > > > Hello, every HCP users. > > > > I am wondering where can I find detailed scanning parameters such as > visual angle of eccentricity or polar angle, checkerboard segments, number > of volumes and scanning duration etc. > > > > The data were released in the Connectome DB, but I cannot find any > information about scanning sequences. > > > > Anyone knows about it? > > > > Sincerely, > > Bo-yong Park. > > [email protected] > > > > Windows 10용 메일 <https://go.microsoft.com/fwlink/?LinkId=550986>에서 보냄 > > > > _______________________________________________ > HCP-Users mailing list > [email protected] > http://lists.humanconnectome.org/mailman/listinfo/hcp-users > _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
