Journal
NEUROIMAGE
Volume 154, Issue -, Pages 169-173Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.neuroimage.2016.11.052
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The number of resting state functional connectivity Mill studies continues to expand at a rapid rate along with the options for data processing. Of the processing options, few have generated as much controversy as global signal regression and the subsequent observation of negative correlations (anti-correlations). This debate has motivated new processing strategies and advancement in the field, but has also generated significant confusion and contradictory guidelines. In this article, we work towards a consensus regarding global signal regression. We highlight several points of agreement including the fact that there is not a single right way to process resting state data that reveals the true nature of the brain. Although further work is needed, different processing approaches likely reveal complementary insights about the brain's functional organisation.
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