Film calculates voxel-wise pre-whitening matrices
Woolrich, M, Ripley, B., Brady, J and Smith, S. (2001)
Temporal autocorrelation in univariate linear modelling of FMRI data.
The technical report TR01MW1 is available at
On 10 Dec 2004, at 22:23, Mark Elliott wrote:
> Can someone please point me to a detailed description of how FSL
> implements its prewhitening (FILM) step. In particular, is a global
> estimate of AR(1) derived and then applied similarly to all voxels?
> one pre-whitened design matrix for all voxels.
Christian F. Beckmann
Oxford University Centre for Functional
Magnetic Resonance Imaging of the Brain,
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
Email: [log in to unmask] - http://www.fmrib.ox.ac.uk/~beckmann/
Phone: +44(0)1865 222782 Fax: +44(0)1865 222717