title          :: Regression Hands-On (5/5): regression results
presentation   :: afni05_regression.pdf
scripts        :: shell_commands.txt
date           :: 2020-05
duration       :: 39:33
speaker        :: Reynolds
outline        ::
Review voxel of interest in afni, underlay rall_vr+orig
Open second controller (B) with anat+orig
Doubleplot (Dataset #N plugin)
+ plot fit in same window as EPI time series
+ start the plot at time=3:20
Review fit of model to data
Review beta weights and t-stats
Threshold and color the voxels - review meanings
+ threshold V-A GLT t-stat at p=0.001
+ note degrees of freedom
Ponder possible interpolation of overlay on top of underlay
+ NN=nearest neighbor, Li=Linear, Cu=Cubic, Bk=Block
+ underlay (anat+orig) is approx 1 mm isotropic
+ overlay (rall_func+orig) is approx 3 mm isotropic
Review threshold and colors at voxels
Compare jump-to : ijk-UL vs ijk-OL
Cluster the results (time=26:00)
+ review nearest neighbor cluster styles NN=1,2,3
+ reivew Bi-sided clustering (pos and neg are separate)
Ponder cluster that appears muscular, rather than BOLD
Ponder auditory cluster
+ and fit time series with large contrast: Vrel-Arel