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Co-Increasing Neuronal Noise and Beta Power in the Developing Brain

View ORCID ProfileWei He, View ORCID ProfileThomas Donoghue, View ORCID ProfilePaul F Sowman, Robert A Seymour, Jon Brock, Stephen Crain, Bradley Voytek, Arjan Hillebrand
doi: https://doi.org/10.1101/839258
Wei He
1Department of Cognitive Science, Macquarie University, 16 University Avenue, Sydney, 2109, NSW, Australia
2Australian Research Council Centre of Excellence in Cognition and Its Disorders, 16 University Avenue, Sydney, 2109, NSW, Australia
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  • For correspondence: wei.he@mq.edu.au
Thomas Donoghue
3Department of Cognitive Science, University of California, 9500 Gilman Dr, La Jolla, CA 92093, United States
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Paul F Sowman
1Department of Cognitive Science, Macquarie University, 16 University Avenue, Sydney, 2109, NSW, Australia
2Australian Research Council Centre of Excellence in Cognition and Its Disorders, 16 University Avenue, Sydney, 2109, NSW, Australia
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Robert A Seymour
1Department of Cognitive Science, Macquarie University, 16 University Avenue, Sydney, 2109, NSW, Australia
2Australian Research Council Centre of Excellence in Cognition and Its Disorders, 16 University Avenue, Sydney, 2109, NSW, Australia
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Jon Brock
1Department of Cognitive Science, Macquarie University, 16 University Avenue, Sydney, 2109, NSW, Australia
2Australian Research Council Centre of Excellence in Cognition and Its Disorders, 16 University Avenue, Sydney, 2109, NSW, Australia
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Stephen Crain
2Australian Research Council Centre of Excellence in Cognition and Its Disorders, 16 University Avenue, Sydney, 2109, NSW, Australia
4Department of Linguistics, Macquarie University, 16 University Avenue, Sydney, 2109, NSW, Australia
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Bradley Voytek
3Department of Cognitive Science, University of California, 9500 Gilman Dr, La Jolla, CA 92093, United States
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Arjan Hillebrand
5Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Clinical Neurophysiology and MEG Center, Amsterdam Neuroscience, De Boelelaan 1117, Amsterdam, The Netherlands
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ABSTRACT

Accumulating evidence across species indicates that brain oscillations are superimposed upon an aperiodic 1/f - like power spectrum. Maturational changes in neuronal oscillations have not been assessed in tandem with this underlying aperiodic spectrum. The current study uncovers co-maturation of the aperiodic component alongside the periodic components (oscillations) in spontaneous magnetoencephalography (MEG) data. Beamformer-reconstructed MEG time-series allowed a direct comparison of power in the source domain between 24 children (8.0 ± 2.5 years, 17 males) and 24 adults (40.6 ± 17.4 years, 16 males). Our results suggest that the redistribution of oscillatory power from lower to higher frequencies that is observed in childhood does not hold once the age-related changes in the aperiodic signal are controlled for. When estimating both the periodic and aperiodic components, we found that power increases with age in the beta band only, and that the 1/f signal is flattened in adults compared to children. These results suggest a pattern of co-maturing beta oscillatory power with the aperiodic 1/f signal in typical childhood development.

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Posted November 12, 2019.
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Co-Increasing Neuronal Noise and Beta Power in the Developing Brain
Wei He, Thomas Donoghue, Paul F Sowman, Robert A Seymour, Jon Brock, Stephen Crain, Bradley Voytek, Arjan Hillebrand
bioRxiv 839258; doi: https://doi.org/10.1101/839258
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Co-Increasing Neuronal Noise and Beta Power in the Developing Brain
Wei He, Thomas Donoghue, Paul F Sowman, Robert A Seymour, Jon Brock, Stephen Crain, Bradley Voytek, Arjan Hillebrand
bioRxiv 839258; doi: https://doi.org/10.1101/839258

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