yes, there is a way that was undocumented until recently: just add a
variable named 'orth' in your multiple condition MAT-file: this should
be a cell array containing true/false for each condition, indicating
whether the parametric modulators should be orthogonalised or not.
On 07/07/16 22:19, John Flournoy wrote:
> Hi all,
> Dr. Mumford has previously helped me understand (and locate) the option
> for orthogonalizing (or not) parametric modulators in fMRI model
> specification under Subject/Session -> Conditions -> Condition ->
> Parametric Modulations -> Orthogonalise. However, I am using multiple
> condition .mat files to specify variable onsets, durations, and pmods
> for each subject in an efficient way. Is there any way to set this
> option in the multicond.mat files I use? Or is my best option scripting
> out the construction of batch files?
> Thanks for your help!
Guillaume Flandin, PhD
Wellcome Trust Centre for Neuroimaging
University College London
12 Queen Square
London WC1N 3BG