It looks like it is the 1st regressor. Although there appears to be a period of time where this is no button press. If the button press is the only event, then it is definitely the 1st regressor. Note that all runs are concatenated together. doug On 07/16/2013 12:17 PM, Nicholas Paul Denisuk wrote:
Freesurfer Users,
Here is the X.mat file. Thank you!
Nick Denisuk
On 7/16/13, Douglas N Greve greve@nmr.mgh.harvard.edu wrote:
can you send the X.mat file?
On 07/16/2013 12:04 PM, Nicholas Paul Denisuk wrote:
Dear Freesurfer Users,
I have opened up the X.mat file from the analysis. I think that the button regressor is the third column in the file, but I am not 100% sure. Do you know which column the button regressor is? Below is the background info to this question.
I am trying to regress out the activity associated with button presses
in my GLM analysis. How do I generate a nuisance regressor file analogous to a white matter regressor generated in functional connectivity (a one column time course file)?
Thanks you,
Nick
Hi Nick, please remember to post to the list and not to us personally.
To answer your question, you could create an run an analysis with just the button press. Go into the analysis and get the button press regressor from X.mat, then save it as a text file in the run folder. Then make your analysis and specify this as a task regressor. I *think* that should work.
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