Re: [HCP-Users] FreeSurfer brain volume question

2017-11-22 Thread Chao Zhang
ve > <https://maps.google.com/?q=660+South+Euclid+Ave&entry=gmail&source=g>. > Tel: 314-747-6173 <(314)%20747-6173> > > St. Louis, MO 63110 Email: > mha...@wustl.edu > > > > *From: * on behalf of Chao Zhang <

[HCP-Users] FreeSurfer brain volume question

2017-11-22 Thread Chao Zhang
Hi We were checking the FS brain volumes and found that out of the 1113 subjects for 14 subjects the FS_BrainSeg_Vol is larger than the FS_IntraCranial_Vol (so that the column FS_BrainSegVol_eTIV_Ratio is larger than 1). We wonder if this is due to some error in calculating either of the two colum

[HCP-Users] fMRI time series intensity normalization

2016-07-11 Thread Chao Zhang
Hi, I am using the FIX fMRI dataset. However I have a question about the time series preprocessing: Step 6 in fMRIVolume pipeline said that '6. Intensity normalization to mean of 1 (like in FEAT) and bias field removal. Brain mask based on FreeSurfer segmentation.'. But the mean values are no

Re: [HCP-Users] Freesurfer total intracranial volume

2016-05-23 Thread Chao Zhang
I found it (aseg.stats) in the /stats folder. Thanks, Best, Chao On Mon, May 23, 2016 at 12:17 PM, Chao Zhang wrote: > Hi > > I wonder if the total intracranial volume (TIV) information from the > freesurfer pipeline is available? I did not find it in the data dictionary > and

[HCP-Users] Freesurfer total intracranial volume

2016-05-23 Thread Chao Zhang
Hi I wonder if the total intracranial volume (TIV) information from the freesurfer pipeline is available? I did not find it in the data dictionary and the spreadsheet. Best, Chao ___ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.hum

[HCP-Users] HCP IQ information

2015-07-07 Thread Chao Zhang
Hi I am wondering if the fluid intelligence is the only public available variable that is related to the subject IQ, since I did not find other IQ information in the spreadsheet. However, what is the IQ used in the Netmats Mega Trawl project? Is that available? Best, Chao ___