Chunk #1 — Resting State Functional Connectivity MRI Signal, Brain Networks, and Common Analysis Techniques — Resting State Functional Connectivity MRI (rs-fcMRI) Signal
Further research has shown that not only do motor regions show correlated resting state timecourses, but other groups of regions that often activate (or deactivate) at the same time in task settings possess correlated rs-fcMRI timecourses at rest. For example, visual processing regions in occipital cortex correlate strongly (Lowe et al. 1998), as do regions within the default mode network (Greicius et al. 2003) task control networks (Dosenbach et al. 2007; Seeley et al. 2007), attention networks (Fox et al. 2006), reading networks (Koyama et al. 2010), and memory networks (Hampson et al. 2006, 2010). A growing number of studies have utilized the rs-fcMRI signal to explore changes in brain networks over development, both typical (e.g., Fair et al. 2007, 2009; Kelly et al. 2009; Supekar et al. 2009; Stevens et al. 2009; Fransson et al. 2010) and atypical (e.g., Gozzo et al. 2009; Myers et al. 2010; Smyser et al. 2010), and in disease states (e.g., He et al. 2007; Church et al. 2009a; Cullen et al. 2009; Hampson et al. 2009; Jones et al. 2010).
