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Hi, it is customary to look at that range because higher frequencies may be contaminated due to aliased cardiorespiratory artifacts (as well as with high frequency motion artifacts in the borders of the brain). However it is not clear that proper artifact removal (i.g. RETROICOR method) does not allow to reveal functionally meaningful organization at higher frequencies (up to the highest recordable with fMRI). As an example, look at the following paper: http://www.jneurosci.org/content/31/21/7910.short Bw, Enzo On Mon, Mar 19, 2012 at 7:43 PM, John Fredy <[log in to unmask]> wrote: > Hello Jason > > For I know this is the range of frequencies with a neural origin > > > 1. > Cordes D, Haughton VM, Arfanakis K, Carew JD, Turski PA, Moritz CH, et al. > Frequencies Contributing to Functional Connectivity in the Cerebral Cortex > in «Resting-state» Data. AJNR Am J Neuroradiol. 2001 ago 1;22(7):1326–33. > > John Ochoa > Programa de Bioingeniería > Universidad de Antioquia > > > On Mon, Mar 19, 2012 at 11:07 AM, Jason Steffener <[log in to unmask]>wrote: > >> Hello all, >> I know this is a simple question, which I should know the answer to >> but I am going to put it out there. >> >> Can someone tell me why the study of the resting state temporally >> filters the data to only those frequencies between ~0.01 Hz and 0.08 >> Hz? >> >> I know that this was done in Biswal et al. 1995, but I am not clear on >> what the motivation is for this choice. >> >> If someone can point me to papers that I must have missed that would be >> great. >> >> Thank you, >> Jason. >> > >