Re: [Marsbar-users] extracted data - partial correlation?

[Matthew B. <mat...@gm...>]

Hi,

> I have been trying to extract data from structural analyses prior run in
>  SPM by means of getting the SPM clusters from the according .mat file
> and contrast of interest.
> Despite reading the manual, FAQ and trawling through the mailing list I have not worked out, whether the
> extracted ROI data/ exported data (sample time courses for one region)
> is the raw data OR data, which is to be understood as covaried for the
> covariates as defined in the prior SPM model in terms of a partial
> correlation, the ROI extraction is based on?

Well - if you choose the default extraction options, the data is the
raw data as understood by the SPM design - that is - the data where
the global scan signal has been scaled to give the same global mean
across sessions.

If you use the full options, then the data may without such adjustment
depending on the options you chose.

In neither case does marsbar use the design to adjust the data,

Best,

Matthew