Hi, Joy-
Oooook, this set of EPI-anat align opts worked well (see attached APQC HTML piece; and I did verify it by running afni_proc.py with both full EPIs entered this time...):
-align_opts_aea \
-big_move -cmass cmass \
Some other thoughts struck me about regression modeling here: you might want to add these opts:
-regress_compute_fitts \
-regress_make_ideal_sum sum_ideal.1D \
-regress_motion_per_run \
... to (in order):
+ output the full time series fit by the model
+ output the "ideal" response curve, based on your input stimuli timings and chosen HRF
+ and, well, I'll just display part of the afni_proc.py help for this last opt:
-regress_motion_per_run : regress motion parameters from each run
default: regress motion parameters catenated across runs
By default, motion parameters from the volreg block are catenated
across all runs, providing 6 (assuming 3dvolreg) regressors of no
interest in the regression block.
With -regress_motion_per_run, the motion parameters from each run
are used as separate regressors, providing a total of (6 * nruns)
regressors.
This allows for the magnitudes of the regressors to vary over each
run, rather than using a single (best) magnitude over all runs.
So more motion-correlated variance can be accounted for, at the
cost of the extra degrees of freedom (6*(nruns-1)).
--pt
Edited 1 time(s). Last edit at 04/04/2020 12:10PM by ptaylor.
Attachments:
open |
download -
newest_ap_ve2a.png
(645.4 KB)