Hi Freesurfer experts

I have a question about designing an event related task. We are designing a 
task for fear conditioning. Each stimuli presentation lasts 4 seconds. My 
question is if we set the TR to 2 (which is a multiply of 4), will it make the 
paradigm to have more power in signal detection? Or does it not matter if the 
TR and stimuli presentation be a multiply of each other or not?
I appreciate if you give me your comments on that.

Thanks a lot

Zahra (Mona) Nasiriavanaki

Postdoctoral Research Fellow

Martinos Center for Biomedical Imaging

Massachusetts General Hospital

149 13th Street, 149-2615

Charlestown, MA, USA, 02129

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