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Frequencies contributing to functional connectivity in the cerebral cortex in "resting-state" data.
D Cordes
1 ,
V M Haughton ,
K Arfanakis ,
J D Carew ,
P A Turski ,
C H Moritz ,
M A Quigley ,
M E Meyerand
Aug 2001
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Abstract
In subjects performing no specific cognitive task ("resting state"), time courses of voxels within functionally connected regions of the brain have high cross-correlation coefficients ("functional connectivity"). The purpose of this study was to measure the contributions of low frequencies and physiological noise to cross-correlation maps.