sorry - no - I'm not aware of any reason why it is necessary to do the whitening. cheers > On 20 Nov 2015, at 18:15, Andrew Song <[log in to unmask]> wrote: > > Thank you for the quick response. > > Just to make sure that I understand it correctly, there is no reason NOT to do prewhitening in resting-state studies? > > Thank you, --------------------------------------------------------------------------- Stephen M. Smith, Professor of Biomedical Engineering Head of Analysis, 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 <http://www.fmrib.ox.ac.uk/~steve> --------------------------------------------------------------------------- Stop the cultural destruction of Tibet <http://smithinks.net/>