Andy,
The only information which gets passed through to a higher level analysis
is the cope, varcope (variance of the cope) and the degrees of freedom,
all at each voxel. The rest of the time series information is not needed
for performing the higher level analysis.
Cheers, Mark.
Mark Woolrich.
Oxford University Centre for Functional MRI of the Brain (FMRIB),
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK.
Work: +44-(0)-1865-222713, Mobile: +44-(0)-7808-727745
Email: [log in to unmask]
On Tue, 1 Jul 2003, Andy Myers wrote:
> hi,
>
> when you do a higher level analysis e.g. looking at a single COPE image
> across 8 runs (i.e. 8 COPE images) what happens to the time series, do you
> not get anything concerning the hrf and the data fit? does this information
> not get passed through in any way?
>
> thanks
>
> andy
>
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