Quasi-periodic patterns contribute to functional connectivity in the brain.

ABSTRACT: Functional connectivity is widely used to study the coordination of activity between brain regions over time. Functional connectivity in the default mode and task positive networks is particularly important for normal brain function. However, the processes that give rise to functional connectivity in the brain are not fully understood. It has been postulated that low-frequency neural activity plays a key role in establishing the functional architecture of the brain. Quasi-periodic patterns (QPPs) are a reliably observable form of low-frequency neural activity that involve the default mode and task positive networks. Here, QPPs from resting-state and working memory task-performing individuals were acquired. The spatiotemporal pattern, strength, and frequency of the QPPs between the two grou

SUBMITTER: Abbas A 

PROVIDER: S-EPMC6440826 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature