Conscious perception relies on interactions between spatially and functionally distinct modules of the brain at various spatiotemporal scales. These interactions are altered by anesthesia, an intervention that leads to fading consciousness. Relatively little is known about brain functional connectivity and its anesthetic modulation at a fine spatial scale. Here, we used functional imaging to...
NeuroimageFebruary 15, 2006Kristen A McKiernan, Benjamin R D'Angelo, Jacqueline N Kaufman et al.
In functional neuroimaging, a local decrease in blood flow during an active task, relative to a "resting" baseline, is referred to as task-induced deactivation (TID). TID may occur when resources shift from ongoing, internally generated processing typical of "resting" states to processing required by an exogenous task. We previously found specific brain regions in which TID increased as task...