help > RE: Excluding Images
Jun 23, 2014  09:06 PM | Alfonso Nieto-Castanon - Boston University
RE: Excluding Images
Hi Harriet, 

For this you would need to create a new condition (in Setup.Conditions; e.g. named 'restFixedLength') where you set the onset/length fields to 0 and 155 times your TR, respectively (these fields are specified in seconds). Then you need to re-run only the Preprocessing and First-level steps selecting the 'skip already processed subjects/rois' option, and then you will be able to perform your second-level analyses selecting the new "fixed length" condition.

(note: let me know if you are not using the latest version of CONN since the instructions on how to best avoid repeating the already-computed processing steps may be different)

Hope this helps
Alfonso


Originally posted by Harriet Johnston:
Hello,
I have another hopefully quick question. I am analysing a data set with varying lengths of resting state acquisition times - so subject files range from 155 to 300 files. I would like to take the first 155 files for each subject - to make the scan time consistent across sites - I already have included all the files available for each subject - is there an easy way to limit each subject to the first 155 files for the functional images without having to start a new project?

Thanks again
Harriet

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TitleAuthorDate
Harriet Johnston Jun 23, 2014
RE: Excluding Images
Alfonso Nieto-Castanon Jun 23, 2014
Harriet Johnston Jun 23, 2014