I don't, sorry. FWIW, for the HCP we are computing dvars for the fMRI
runs after only motion-correction, and it isn't clear yet whether the
absolute value of dvars will be all that meaningful in that context.
cheers,
-MH
--
Michael Harms, Ph.D.
-----------------------------------------------------------
Conte Center for the Neuroscience of Mental Disorders
Washington University School of Medicine
Department of Psychiatry, Box 8134
660 South Euclid Ave. Tel: 314-747-6173
St. Louis, MO 63110 Email: [log in to unmask]
On 11/19/12 1:18 PM, "Estephan Moana" <[log in to unmask]> wrote:
>I see. So it seems that it is not that trivial to replicate Power et al.
>dvars cutoff. Based on the pre-processing impact on dvars values, it
>sounds like cutoffs would need to be developed for each data analysis
>with a particular pre-processing pipeline.
>
>Do you have any recommendations for a cutoff number if I am looking into
>dvars values form the original 4D file (no pre-processing)?
>
>Thank you.
>
>Estephan
|