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yea, this can be a big bookkeeping headache. I would suggest just
modeling the missed trials as an event in the par file. If some subjects
don't have a missed trial, then just take one of the unmissed ones and
call it missed. Not perfect, but it should not make much difference.
On 8/9/2023 8:57 AM, wangzhiwei3233 wrote:
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Dear FreeSurfer experts,
In my experiment, some subjects missed some trials and some not. I
wish set the missed trials as an external regressor, however,
mkanalysis-sess seems applying the same parameters for all subjects.
In my understanding, -taskreg extreg N, the N is same for all
subjects. Is my understanding right? If it is right, how can I sove
my problem that not all subjects have the external regressor because
some subjects have no missing trials?
Best,
Zhiwei
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