… Using a measure called RVT (respiration volume per time) that attempts to capture breathing
rate and depth as a surrogate for end-tidal CO 2 , Birn and colleagues demonstrated that …

… regressors modeled in RETROICOR account for a small amount of time course variance (R
2 … RM Birn is currently supported in part by NIH grant RC1MH090912 as well as the …

… the seed region are similar (ie, the correlation value between the visual and global task)
predicts almost exactly (r = … Descriptive statistics for the size of regions (after thresholding at r = …

Subtle changes in a subject's breathing rate or depth, which occur naturally during rest at
low frequencies (<0.1 Hz), have been shown to be significantly correlated with fMRI signal …

There has been an increasing use of functional magnetic resonance imaging (fMRI) by the
neuroscience community to examine differences in functional connectivity between normal …

… The data in this study were acquired at a relatively short T R (500 ms) and large flip angle
(90). This … response function derived in this study will also apply to studies with longer T R s. …

… the degree distribution of G, and L R is the average minimum path length of such a … R /E(G).
For disconnected graphs, formally σ(G) is undefined, but we can again substitute λ(G) = E R /…

… Across all participants, experiences of maltreatment in childhood predicted lower connectivity
(R 2 = 0.27) between the right amygdala and the vmPFC, specifically the subgenual …

Verbal fluency tasks have been widely used to evaluate language and executive control
processes in the human brain. FMRI studies of verbal fluency, however, have used either silent …

… is significantly negatively associated with childhood cortisol (R 2 = 0.36, FDR-corrected P
= 0.01). This effect is driven entirely by data for females (R 2 = 0.61, FDR-corrected P = 0.01). …