Psychology

Infra-slow scale-free dynamics modulate the connection of neural and behavioral variability during attention

Y. Ao, P. Klar, et al.

Using resting-state and task fMRI in 49 participants, this study reveals that scale-free dynamics—power-law exponent (PLE), neural variability (SD), and sample entropy (SE)—have distinct topographies and hierarchical modulation from sensory to associative networks, differentially relate to behavioral variability during sustained attention, and that PLE mediates the SD–SE relationship (confirmed by simulation). Research conducted by Yujia Ao, Philipp Klar, Yasir Catal, Yifeng Wang, and Georg Northoff.