Periodic and aperiodic neural activity displays age-dependent changes across early-to-middle childhood.

3.2 Association between age and aperiodic activity Regression models revealed that age predicted the aperiodic exponent for the eyes open EEG recordings, F(1,37) = 8.12, p = .005, R 2 = 0.06; however, the eyes closed recordings failed to reach significance after multiple comparison correction, F(1,37) = 5.56, p = .020, R 2 = 0.04 ( Fig. 2 A).

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