Low-frequency fluctuations in fMRI signal have been used to map several consistent resting
state networks in the brain. Using the posterior cingulate cortex as a seed region, functional …

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 …

Changes in the subject’s breathing rate or depth, such as a breath-hold challenge, can cause
significant MRI signal changes. However, the response function that best models breath-…

… 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 …

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 …

Maltreatment during childhood is a major risk factor for anxiety and depression, which are
major public health problems. However, the underlying brain mechanism linking maltreatment …

Early life stress (ELS) and function of the hypothalamic-pituitary-adrenal axis predict later
psychopathology. Animal studies and cross-sectional human studies suggest that this process …

Efforts to identify meaningful functional imaging-based biomarkers are limited by the ability
to reliably characterize inter-individual differences in human brain function. Although a …

Resting-state fMRI (rs-fMRI) has been demonstrated to have moderate to high reliability and
produces consistent patterns of connectivity across a wide variety of subjects, sites, and …