Although the time courses of dynamic connectivity are thought to be noisier than the original signals, we found similar level of intersubject correlations of dynamic connectivity to those of regional activity. We calculated dynamic connectivity by using sliding window technique, and quantified the intersubject correlations of the time courses of dynamic connectivity. We analyzed a functional MRI (fMRI) dataset when the subjects watched a short animated movie. Following similar logic, we propose to study intersubject correlations of the time courses of dynamic connectivity during naturalistic conditions to extract functionally meaningful dynamic connectivity patterns. in the visual cortex, are consistent across subjects.
During naturalistic conditions, such as watching a movie, it has been shown that local brain activities, e.g. However, it is usually difficult to elucidate whether the observed dynamic connectivity is functionally meaningful or simply due to noise during unconstrained task conditions such as resting-state. The functional communications between brain regions are thought to be dynamic.
