How can I do SPM-like analyses with AFNI?
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Q68. How can I do SPM-like analyses with AFNI?
Whereas Talairach normalization is often a relatively late step in an AFNI analysis (after time series analysis like cross-correlation), it is a very early step in SPM analysis (before time series analysis). To replicate this in AFNI, follow the following steps:
- Talairach normalize an anatomical dataset in the subject working directory
- Write out a normalized version of the echo-planar (functional) 3D+time BRIKs for each subject using the Write Anat button in the Define Datamode control panel (you must be in Talairach View to write out Talairach BRIKs). The default resampling resolution of 1 mm will create enormous disk files, so be sure to use a resolution closer to the actual resolution of your 3D+time functional data (typically about 4 mm).
- Analyze the normalized time series data using multiple linear regression, deconvolution, ROI averaging, etc.
[Answer added 26 July 2000 (by MSB)]
This FAQ applies to: Any version.
