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help > RE: Second Level Analysis' Output Files
Nov 4, 2021 03:11 PM | Alfonso Nieto-Castanon - Boston University
RE: Second Level Analysis' Output Files
Hi Mor,
The only difference is in the context of repeated measure analyses (when you are evaluating multiple conditions and your 'between-conditions' contrast is a matrix, instead of simply a vector). In those cases, SPM approach uses univariate statistics combined with reML covariance estimation to deal with repeated measures, while CONN approach uses multivariate statistics to deal with repeated measures, so they will produce (slightly) different statistics (see https://www.nitrc.org/forum/message.php?... for a few more details)
Hope this helps
Alfonso
Originally posted by mor_fine:
The only difference is in the context of repeated measure analyses (when you are evaluating multiple conditions and your 'between-conditions' contrast is a matrix, instead of simply a vector). In those cases, SPM approach uses univariate statistics combined with reML covariance estimation to deal with repeated measures, while CONN approach uses multivariate statistics to deal with repeated measures, so they will produce (slightly) different statistics (see https://www.nitrc.org/forum/message.php?... for a few more details)
Hope this helps
Alfonso
Originally posted by mor_fine:
Hi Alfonso,
Thank you for your answer.
I have a follow up question;
What is the difference between the files "spmT_": T-statistics map (univariate analysis, generated by SPM), and "spmF_mv": T/F-statistic map (multivariate analyses, generated by CONN)?
Regards,
Mor
Thank you for your answer.
I have a follow up question;
What is the difference between the files "spmT_": T-statistics map (univariate analysis, generated by SPM), and "spmF_mv": T/F-statistic map (multivariate analyses, generated by CONN)?
Regards,
Mor
Threaded View
| Title | Author | Date |
|---|---|---|
| mor_fine | Oct 28, 2021 | |
| Alfonso Nieto-Castanon | Oct 29, 2021 | |
| mor_fine | Oct 31, 2021 | |
| Alfonso Nieto-Castanon | Nov 4, 2021 | |