Figure 3 .

(A) Group average (N = 14) differential functional connectivity to visual-biased frontal regions (seeds outlined in white; significantly greater connectivity shown in blue) and auditory-biased frontal regions (seeds outlined in black; significantly greater connectivity shown in yellow). The 4 bilateral seed regions were defined in individual subjects from task activation. (Seed label outlines shown here are regions where individual subject labels overlap in at least 20% of subjects.) Note clear preferential connectivity between visual frontal seeds and pVis attention regions (parietal and occipital cortex) and between auditory frontal seeds and pAud attention regions (superior temporal cortex). Within frontal cortex, we observe regions of preferential visual network connectivity to bilateral aIns and preSMA as well as to left midIFS; we observe regions of preferential auditory connectivity to bilateral aCO, FO, midIns, cmSFG, and dmCC, as well as to right rMFG. Maps are thresholded at P < 0.05 after correcting for multiple comparisons (Smith and Nichols 2009). (B) Split-half reliability (Pearson’s r) of task activation (Aud WM vs. Vis WM) for each candidate visual-biased (left, blue) and auditory-biased (right, orange) region. Three bilateral visual-biased regions (sPCS, iPCS, and midIFS) and 5 bilateral auditory-biased regions (tgPCS, cIFS/G, aCO, FO, and cmSFG) are significantly non-zero. Left preSMA is above r = 0.5 but does not survive multiple comparisons correction. Error bars are within-subject standard error of the Fisher’s z-transformed mean correlation (Loftus and Masson 1994; Cousineau 2005; Morey 2008). ^*P < 0.05, ^**P < 0.01, ^***P < 0.001, Holm–Bonferroni corrected for 26 tests.