That command needs a -cifti-roi flag added to it for it to be usable in this case I think (and I think it should be added).

Matt.

From: Timothy Coalson <tsc...@mst.edu>
Date: Tuesday, April 29, 2014 at 1:19 PM
To: Matt Glasser <glass...@wusm.wustl.edu>
Cc: Donna Dierker <do...@brainvis.wustl.edu>, "Luo,Yishan" <lys84...@hotmail.com>, "hcp-users@humanconnectome.org" <hcp-users@humanconnectome.org>
Subject: Re: [HCP-Users] activation region mask



On Tue, Apr 29, 2014 at 1:18 PM, Timothy Coalson <tsc...@mst.edu> wrote:
If you have only one ROI, you could also look at the -cifti-average-dense-roi command: http://www.humanconnectome.org/software/workbench-command.php

Tim



On Tue, Apr 29, 2014 at 10:11 AM, Glasser, Matthew <glass...@wusm.wustl.edu> wrote:
To convert the output of -cifti-math to a label file, use wb_command
-cifti-label-import.  You can use wb_command -cifti-merge to extract
frames, though it is not as convenient as something like fslroi would be
as you have to specify each frame.

Peace,

Matt.

On 4/29/14, 8:19 AM, "Donna Dierker" <do...@brainvis.wustl.edu> wrote:

>Hi Lisa,
>
>While there is a -volume flag (e.g., for subcortical structures), it is
>not mandatory.  This command works for me:
>
>wb_command -cifti-create-label $OUTPUT_DLABEL_1 \
>  -left-label $INPUT_LABEL_LH -right-label $INPUT_LABEL_RH
>
>I'm sorry I don't know how to extract the frames.
>
>Donna
>
>
>On Apr 29, 2014, at 2:48 AM, "Luo,Yishan" <lys84...@hotmail.com> wrote:
>
>> Dear all,
>>
>> I would like to do the following things with task fMRI.
>>
>> I threshold the file
>>HCP_Q1-2_R120_tfMRI_ALLTASKS_level3_hp200_s4.dscalar.nii to get the
>>activation region
>> using -cifti-math "x>5"
>>
>> I want to extract the average timeseries from the roi region.
>> But it seems that -cifti-parcellate requires a label file as input. And
>>-cifti-create-label requires a volume file as input to create a label.
>> But my output from -cifti-math is in cifti format, it is neither a
>>volume nor a label.
>>
>> How can I do to transform it?
>>
>> Another question is how can I extract several frames from
>>"tfMRI_MOTOR_LR_Atlas.dtseries.nii" file, such as from frame 10 to 20?
>>
>>
>> Thanks a lot!
>>
>> Best Regards,
>> Lisa
>>
>>
>>
>>
>>
>> _______________________________________________
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>> HCP-Users@humanconnectome.org
>> http://lists.humanconnectome.org/mailman/listinfo/hcp-users
>
>
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