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help > RE: conditions as first level covariates
Feb 10, 2017 02:02 PM | Alfonso Nieto-Castanon - Boston University
RE: conditions as first level covariates
Hi Alain,
This may possibly happen if you have only defined your condition for the first subject (e.g. when entering the 'onset' and 'duration' values in Setup.Conditions please check that you have selected all subjects in the 'subjects' list, so that those onset/duration values apply to all of your subjects and not just the first subject)
Hope this helps
Alfonso
Originally posted by Alain Imaging:
This may possibly happen if you have only defined your condition for the first subject (e.g. when entering the 'onset' and 'duration' values in Setup.Conditions please check that you have selected all subjects in the 'subjects' list, so that those onset/duration values apply to all of your subjects and not just the first subject)
Hope this helps
Alfonso
Originally posted by Alain Imaging:
A little follow up:
I have now realized that all my results are off because when conn has moved the conditions to 1st level covariates it has actually transferred those values only to the first subject, while for all the other subjects the covariates relative to the task are actually empty. In which format should I specify those covariates ? Is a subjects x 1 vector (for each condition in the task) enough, or should I also provide durations ? And if this is the case, what is the format in which I should provide it ?
Alain
I have now realized that all my results are off because when conn has moved the conditions to 1st level covariates it has actually transferred those values only to the first subject, while for all the other subjects the covariates relative to the task are actually empty. In which format should I specify those covariates ? Is a subjects x 1 vector (for each condition in the task) enough, or should I also provide durations ? And if this is the case, what is the format in which I should provide it ?
Alain
Threaded View
| Title | Author | Date |
|---|---|---|
| Alain Imaging | Jan 18, 2017 | |
| Alfonso Nieto-Castanon | Feb 10, 2017 | |
| Daniel Berge | Jan 12, 2023 | |
| Alain Imaging | Feb 10, 2017 | |
| Alfonso Nieto-Castanon | Feb 10, 2017 | |