Hi Samantha, Sorry for the delay in getting back to you. The time of day of collection for each MR session/scan for each HCP subject is available in ConnectomeDB. Here's how to find it:
-From the splash page or 500 Subjects project page in ConnectomeDB click on Explore/Browse Subjects to go to the Subject Dashboard. -If you wish, you can use the data filters to select for subjects, e.g. with 4 sessions of complete rfMRI data. -Click on one of the subject ID listed in the columns--this is a link to a page for that subject. -Click on the MR Session link on the subject details page. -Click on the "+" button beside the scan(s) for which you want time info. -Time should be listed as the first row of details for the scan. We do not include dates of collection for privacy reasons, instead Day 1 and Day 2 are used to distinguish the days of acquisition. Hope this is helpful and good luck with your analyses. Best, Jenn Jennifer Elam, Ph.D. Outreach Coordinator, Human Connectome Project Washington University School of Medicine Department of Anatomy and Neurobiology, Box 8108 660 South Euclid Avenue St. Louis, MO 63110 314-362-9387 [email protected] www.humanconnectome.org -----Original Message----- From: Cunningham, Samantha (NIH/NIAAA) [F] [mailto:[email protected]] Sent: Wednesday, November 05, 2014 7:04 AM To: David Van Essen; Jennifer Elam Subject: RE: Time of Acquisition-- Human Connectome Hi Jenn and David-- thank you for your help! I am working on a circadian rhythm study and was hoping to compare resting-state data between different times of the day. Best, Sam ________________________________ From: David Van Essen [[email protected]] Sent: Tuesday, November 04, 2014 10:00 PM To: Jennifer Elam Cc: Cunningham, Samantha (NIH/NIAAA) [F] Subject: Re: Time of Acquisition-- Human Connectome Jenn, Good point. Please extend your response to hcp-users as others may be interested. David On Nov 4, 2014, at 5:43 PM, Jennifer Elam <[email protected]<mailto:[email protected]>> wrote: Hi Samantha, Page 44 of the current Reference Manual<http://humanconnectome.org/documentation/S500/HCP_S500_Release_Refere nce_Manual.pdf> shows a typical participant schedule. However, in order to make the scheduling work for our subjects (some of whom work full time and did the scanning at night/on a weekend, for example), we do the scanning at many different times of day so you can't assume that all the rfMRI scanning was done from 1-2pm, for example, for all subjects. As David mentioned, usually rfMRI session 1 (REST 1) is done on Day 1 and REST2 is done on Day 2. I am checking with our database expert about whether one can reliably look at the time information for each scan in ConnectomeDB if you want to roughly match scan times in your analysis. I'll get back to you when I hear more. Best, Jenn Jennifer Elam, Ph.D. Outreach Coordinator, Human Connectome Project Washington University School of Medicine Department of Anatomy and Neurobiology, Box 8108 660 South Euclid Avenue St. Louis, MO 63110 314-362-9387<tel:314-362-9387> [email protected]<mailto:[email protected]> www.humanconnectome.org<http://www.humanconnectome.org/> From: David Van Essen [mailto:[email protected]] Sent: Tuesday, November 04, 2014 5:09 PM To: Cunningham, Samantha (NIH/NIAAA) [F] Cc: David Van Essen; Jennifer Elam ([email protected]<mailto:[email protected]>) Subject: Re: Time of Acquisition-- Human Connectome Hello Samantha, In general, one pair of rfMRI scans (LR and RL phase encoding) were acquired on day 1, another pair on day 2. Time of day varied according to the schedule. I am copying Jenn Elam, who may have more detail to provide. Also, I believe the Reference Manual on the HCP website gives added information. Finally, please join hcp-users and post there if you have additional questions that may be of general interest. David On Nov 4, 2014, at 10:40 AM, Cunningham, Samantha (NIH/NIAAA) [F] <[email protected]<mailto:[email protected]>> wrote: Hi David, I am currently working with your Human Connectome datasets for a resting-state fMRI/DTI project and was hoping for your help. I noticed that the rs-fMRI scans took place over two separate sessions-did these sessions take place on the same day (and if so, at what times)? Or on a different day at the same time? I am currently using the unprocessed Structural, Diffusion, and Resting State fMRI 1 datasets from the "WU-Minn HCP Data - 500 Subjects" (40 Unrelated Subjects) group. Everything was downloaded fromhttps://db.humanconnectome.org/. Thank you for your help! Samantha -------------------------------------------------- Samantha Cunningham, Ph.D. Postdoctoral Fellow National Institutes of Health|NIAAA|LNI [email protected]<mailto:[email protected]> Samantha Cunningham, Ph.D. Postdoctoral Fellow National Institutes of Health|NIAAA|LNI [email protected]<mailto:[email protected]> _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
