Dynamic Brain Network Correlates of Spontaneous Fluctuations in Attention.

ABSTRACT: Human attention is intrinsically dynamic, with focus continuously shifting between elements of the external world and internal, self-generated thoughts. Communication within and between large-scale brain networks also fluctuates spontaneously from moment to moment. However, the behavioral relevance of dynamic functional connectivity and possible link with attentional state shifts is unknown. We used a unique approach to examine whether brain network dynamics reflect spontaneous fluctuations in moment-to-moment behavioral variability, a sensitive marker of attentional state. Nineteen healthy adults were instructed to tap their finger every 600 ms while undergoing fMRI. This novel, but simple, approach allowed us to isolate moment-to-moment fluctuations in behavioral variability related to a

SUBMITTER: Kucyi A 

PROVIDER: S-EPMC6317462 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature