Persistency and flexibility of complex brain networks underlie dual-task interference.

ABSTRACT: Previous studies on multitasking suggest that performance decline during concurrent task processing arises from interfering brain modules. Here, we used graph-theoretical network analysis to define functional brain modules and relate the modular organization of complex brain networks to behavioral dual-task costs. Based on resting-state and task fMRI we explored two organizational aspects potentially associated with behavioral interference when human subjects performed a visuospatial and speech task simultaneously: the topological overlap between persistent single-task modules, and the flexibility of single-task modules in adaptation to the dual-task condition. Participants showed a significant decline in visuospatial accuracy in the dual-task compared with single visuospatial task. Global

SUBMITTER: Alavash M 

PROVIDER: S-EPMC6869626 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature