In a previous post I outlined how to overlay results generated by SPM or FSL onto a SUMA surface and published a tutorial video on my Techsmith account. However, as I am consolidating all of my tutorials onto Youtube, this video has been uploaded to Youtube instead.
There are few differences between this tutorial and the previous one; however, it is worth reemphasizing that, as the results have been interpolated onto another surface, one should not perform statistical analyses on these surface maps - use them for visualization purposes only. The correct approach for surface-based analyses is to perform all of your preprocessing and statistics on the surface itself, a procedure which will later be discussed in greater detail.
A couple of other notes:
1) Use the '.' and ',' keys to toggle between views such as pial, white matter, and inflated surfaces. These buttons were not discussed in the video.
2) I recommend using SPM to generate cluster-corrected images before overlaying these onto SUMA. That way, you won't have to mess with the threshold slider in order to guess which t-value cutoff to use.
More AFNI to come in the near future!
There are few differences between this tutorial and the previous one; however, it is worth reemphasizing that, as the results have been interpolated onto another surface, one should not perform statistical analyses on these surface maps - use them for visualization purposes only. The correct approach for surface-based analyses is to perform all of your preprocessing and statistics on the surface itself, a procedure which will later be discussed in greater detail.
A couple of other notes:
1) Use the '.' and ',' keys to toggle between views such as pial, white matter, and inflated surfaces. These buttons were not discussed in the video.
2) I recommend using SPM to generate cluster-corrected images before overlaying these onto SUMA. That way, you won't have to mess with the threshold slider in order to guess which t-value cutoff to use.
More AFNI to come in the near future!
