Re: [HCP-Users] Zeros found in the surface space resting-state fMRI data.

[Glasser, Matthew]

What is it that you are trying to do?  I’m not sure why the -cifti-separate and -cifti-create-dense-timeseries commands are in there, but you won’t have zeros if you simply run -cifti-smoothing on the cleaned dense timeseries. Peace, Matt. From: Long <longspac...@gmail.com> Date: Friday, October 10, 2014 at 4:30 AM To: "hcp-users@humanconnectome.org" <hcp-users@humanconnectome.org> Subject: [HCP-Users] Zeros found in the surface space resting-state fMRI data. Dear all, I'm using workbench to extract resting-state fMRI data and smoothing, the data is from HCP_S500, the version of workbench is v1.0: 1) wb_command -cifti-separate rfMRI_REST1_RL_Atlas_hp2000_clean.dtseries.nii \     COLUMN \     -metric CORTEX_LEFT \     rfMRI_REST1_RL_Atlas_hp2000_clean.dtseries.left_metric.gii 2) wb_command -cifti-create-dense-timeseries \        rfMRI_REST1_RL_left.dtseries.nii \         -leftmetric \ rfMRI_REST1_RL_Atlas_hp2000_clean.dtseries.left_metric.gii 3) wb_command -cifti-smoothing \         rfMRI_REST1_RL_left.dtseries.nii \         2 2 COLUMN \         rfMRI_REST1_RL_left_smoothed.dtseries.nii \         -left-surface 100307.L.very_inflated.32k_fs_LR.surf.gii Then I load the data 'rfMRI_REST1_RL_left_smoothed.dtseries.nii' to Matlab7: fid = fopen('rfMRI_REST1_RL_left_smoothed.dtseries.nii', 'r'); tseries = fread(fid,[32492 32492], 'float32'); I found that the tseries has lots of zero value, is it normal? Could you please check which step is wrong? Thank you for your time. Best, Xiangyu _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users   The materials in this message are private and may contain Protected Healthcare Information or other information of a sensitive nature. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail. _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users