Filtering induces correlation in fMRI resting state data

  title={Filtering induces correlation in fMRI resting state data},
  author={Catherine E. Davey and D. Grayden and G. Egan and L. Johnston},
  • Catherine E. Davey, D. Grayden, +1 author L. Johnston
  • Published 2013
  • Mathematics, Computer Science, Medicine
  • NeuroImage
  • Correlation-based functional MRI connectivity methods typically impose a temporal sample independence assumption on the data. However, the conventional use of temporal filtering to address the high noise content of fMRI data may introduce sample dependence. Violation of the independence assumption has ramifications for the distribution of sample correlation which, if unaccounted for, may invalidate connectivity results. To enable the use of temporal filtering for noise suppression while… CONTINUE READING
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