Also note that if you are orthogonalizing EVs with respect to motion
parameters (or wrt other EVs that differ between subjects), this
affects PP heights so that every subject has a different PPheight even
if the original EV is the same for everyone.
Dan
On 7/11/07, Steve Smith <[log in to unmask]> wrote:
> Hi - it's the peak to the peak height, _before_ highpass filtering is
> applied to the model.
> Cheers.
>
>
> On 11 Jul 2007, at 00:37, Soohyun Cho wrote:
>
> > Hello FSL experts,
> >
> > I'd like to know how feat calculates the PPHeights in the
> > design.mat file.
> > Does PPHeights stand for 'peak to peak heights' ?
> > Does the peak to peak height refer to the average height of the
> > regressor (from the lowest point to the highest point) for each EV?
> >
> > thanks in advance,
> > Soohyun.
>
>
> ------------------------------------------------------------------------
> ---
> Stephen M. Smith, Professor of Biomedical Engineering
> Associate Director, Oxford University FMRIB Centre
>
> FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
> +44 (0) 1865 222726 (fax 222717)
> [log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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>
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