Re: [SPM] MARsbar % BOLD Question

Hi,

> I'm trying to do ROI % signal extraction in marsbar and everything seems fine
> until I select % signal change then I get the error
>
> need fMRI design for % signal change

The percent signal change routines need some estimate of the
event-related response - for this you need an FMRI design, with
events, basis functions and so-on.  It's possible to imagine percent
signal change for things like PET designs, but it requires some
thought about what is the baseline and so on.

Best,

Matthew

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