Activity for QingYuan
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QingYuan posted a comment on discussion Open Discussion
Dear experts: Hello, I have a question about the templates in icatb/icatb_templates/RSN.zip. I'd like to know the basics of the way to distinguish those networks(like a paper, maybe?), and which space is used? When I display it in an MNI space, I find there are some parts out of the brain. Is it defined in a Talairach space? Looking forward to your reply,thank you! Best regards
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Dear experts: Hello, I have a question about the templates in icatb/icatb_templates/RSN.zip. I'd like to know the basics of the way to distinguish those networks(like a paper, maybe?), and which space is used? When I display it in an MNI space, I find there are some parts out of the brain. Is it defined in a Talairach space? Looking forward to your reply,thank you! Best regards
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Dear expert: Thanks for your reply! I will try it. Best regards! Get Outlook for Androidhttps://aka.ms/AAb9ysg From: Srinivas Rachakonda rnsk123@users.sourceforge.net Sent: Tuesday, August 17, 2021 12:28:05 PM To: [icatb:discussion] 309910@discussion.icatb.p.re.sourceforge.net Subject: [icatb:discussion] Re: SPM design matrix doesn't match with the data Hi, There is a default mask step in GIFT which removes voxels < mean value. If you want to specify a mask, you can use user specified mask. By the...
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Dear experts: Sorry, I still have some problems about the mask_ind. The mask of my preprocessed data is a .nii file, whose parameter is 617361, but the mask_ind that is generated by my data during ICA has 57549 voxels, which means there are 57549 values in each IC. Now I operate these IC(compSet.ic in ica_br.mat) to generate a new vector that has 57549 elements, and I want to create a .nii file based on it. How can I do this? I know this step needs the value of each voxel and a mask, but the mask...
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Dear experts: The mask of my preprocessed data is a .nii file, whose paramter is 617361 .but the maskind that is generated by my data during ICA has 57549 voxels, which means there are 57549 values in each IC. Now I operate these IC(compSet.ic in ica_br.mat) to generate a new matix which has 57549 elements, and I want to create a .nii file based on it. How canI do this? I know this step need value of each voxel and a mask, but where can I find the mask? By the way, I find a function in the Group...
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Dear experts: Thank for your reply! I find that every network in the template should be separated in different 3D.nii file, and be named as 1,2,3... then putting them in one 4D nii file. Now the problem has been solved, thank you! Best regards! QingYuan
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Dear experts: I want to use Yeo's Cortical Parcellation, and I download the templates from https://www.freesurfer.net/fswiki/CorticalParcellation_Yeo2011 , but I'm confused about how to change it to a format which can be used by 'component labeller'. Can you teach me how can I done this? I will be so grateful to receive your reply, thank you! Best regards! QingYuan
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Dear expert: I'm confused that what determines the number of row of the mask_ind in 'ica_parameter_info.mat'? All IC have same number of mask_ind, but the number is different between conditions. I have two group of subjects, which recept different conditions. Both groups of subjects were treated with group ICA. Now I find that in these two groups, the number of columns of ic matrix in 'icac1-1.mat'is different. Is there any way to make them the same? Looking forward your reply, thank you! Best r...
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Dear expert: I'm confused that what determines the number of row of the mask_ind in 'ica_parameter_info.mat'? All IC have same number of mask_ind, but the number is different between conditions. I have two group of subjects, which recept different conditions. Both groups of subjects were treated with group ICA. Now I find that in these two group, the number of columns of ic matrix in 'icac1-1.mat'is different. Is there any way to make them the same? Looking forward your reply, thank you! Best re...
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Dear experts: That's useful, I've got what I want. Thanks! Best regards! QingYuan
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Dear experts: Thank you for your answer, my problem about timporal sorting has been solved perfectly! But there are another question: After finding the spacial components which correlate with design matrix, I need to label these component. Before I selected the RSN.zip in icatb_templates file as template, but now I can't use it, Matlab show that 'File "\icatbtemplates\RSN.zip" is not of a recognised type', how can I solve this? Looking forward to your reply, Thank you! Best regards! QingYuan
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Dear experts: I'm so grateful to receive your prompt reply! I read the manual and change some parameters and directory path based on the Input_spatial_ica.m . I'd like to clarify something further: Is the word "session" in your letter means "run"? Every subject has 2 runs so each subject has 2 sessions? I am accustomed to choose "yes" for "Do you want to estimate the number of independent components?". If I write"doEstimation = 1",what about the "numOfPC1" and "numOfPC2"? Should I select Semi-blind...
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I think I haven't describe my question clearly, because there are 30 participants, and I make a group level ICA, so the diffTimePoints is a matrix：1x30 double, and each element here is 240. The nscan of the SPM.mat shows [120,120]. I'm looking forward to receive your reply! Best regards! Qingyuan
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Dear experts: Hello, I have a problem when I want to get Temporal Sorting Components. My data has two runs, and each run has 120 scans. The nscan of the SPM.mat shows [120,120]. But when I use these two runs to do ICA, the diffTimePoint shows 240, when I use one run, it shows 120. So I wonder how to match these two files? I will be sincerely grateful to receive your reply, thank you.
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What's the meaning of the output of ICA?
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