Re: [HCP-Users] unsmoothed ROI to smoothed cifti correlation

2017-05-04 Thread Timothy Coalson
> *From:* Benjamin Risk [bb...@cornell.edu] > *Sent:* Thursday, May 04, 2017 2:34 PM > *To:* Harms, Michael > *Cc:* Ely, Benjamin > *Subject:* Re: [HCP-Users] unsmoothed ROI to smoothed cifti correlation > > That's true, but the sample correlation coeffici

Re: [HCP-Users] unsmoothed ROI to smoothed cifti correlation

2017-05-04 Thread Ely, Benjamin
: Benjamin Risk [bb...@cornell.edu] Sent: Thursday, May 04, 2017 2:34 PM To: Harms, Michael Cc: Ely, Benjamin Subject: Re: [HCP-Users] unsmoothed ROI to smoothed cifti correlation That's true, but the sample correlation coefficient is asymptotically normal. I agree with Benjamin based on some

Re: [HCP-Users] unsmoothed ROI to smoothed cifti correlation

2017-05-04 Thread Harms, Michael
onnectome.org>" <HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org>> Subject: RE: [HCP-Users] unsmoothed ROI to smoothed cifti correlation Ah that makes sense, thanks! The effect of the z transformation is quite subtle (as expected since the correlation distributions

Re: [HCP-Users] unsmoothed ROI to smoothed cifti correlation

2017-05-04 Thread Ely, Benjamin
, Benjamin; Glasser, Matthew; HCP-Users@humanconnectome.org Subject: Re: [HCP-Users] unsmoothed ROI to smoothed cifti correlation I would probably z transform before averaging across runs, so that you are averaging something with at least an approximately gaussian distribution. cheers, -MH

Re: [HCP-Users] unsmoothed ROI to smoothed cifti correlation

2017-05-04 Thread Harms, Michael
ot; <HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org>> Subject: Re: [HCP-Users] unsmoothed ROI to smoothed cifti correlation Hi Matt, Thanks for getting back to me - after some further tinkering, I think this command sequence yields the desired output: 1) Extr

Re: [HCP-Users] unsmoothed ROI to smoothed cifti correlation

2017-05-03 Thread Glasser, Matthew
:glass...@wustl.edu>>, "HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org>" <HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org>> Subject: RE: [HCP-Users] unsmoothed ROI to smoothed cifti correlation Hi Matt, Thanks for getting ba

Re: [HCP-Users] unsmoothed ROI to smoothed cifti correlation

2017-05-03 Thread Ely, Benjamin
_ From: Glasser, Matthew [glass...@wustl.edu] Sent: Wednesday, May 03, 2017 11:32 PM To: Ely, Benjamin; HCP-Users@humanconnectome.org Subject: Re: [HCP-Users] unsmoothed ROI to smoothed cifti correlation Hi Ely, We don’t have a function like this yet, but have been discussing making one.

Re: [HCP-Users] unsmoothed ROI to smoothed cifti correlation

2017-05-03 Thread Glasser, Matthew
<benjamin@mssm.edu<mailto:benjamin@mssm.edu>> Date: Wednesday, May 3, 2017 at 10:06 PM To: "HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org>" <HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org>> Subject: [HCP-Users] u

[HCP-Users] unsmoothed ROI to smoothed cifti correlation

2017-05-03 Thread Ely, Benjamin
Hi everyone, I'm running some connectivity analyses following the procedure outlined in this thread https://www.mail-archive.com/hcp-users@humanconnectome.org/msg04403.html. Since my ROIs are fairly small, I'd like to calculate the correlation between the mean unsmoothed timeseries of each