Charting moment-to-moment brain signal variability from early to late childhood.

摘要: Large-scale brain signals exhibit rich intermittent patterning, reflecting the fact that cortex actively eschews fixed points in favor of itinerant wandering with frequent state transitions. Fluctuations endogenous cortical activity occur at multiple time scales and index a dynamic repertoire network states are continuously explored, even absence external sensory inputs. Here, we quantified such moment-to-moment signal variability rest large, cross-sectional sample children ranging age from seven to eleven years. Our findings revealed monotonic rise complexity electroencephalogram (EEG) as measured by entropy, youngest oldest cohort, across range spatial regions. From year year, greatest changes intraindividual were recorded electrodes covering anterior zones. These results provide converging evidence concerning age-dependent expansion functional during critical developmental period early late childhood.