Longitudinal Study on Resting-State EEGs in Children: A Connection Between DMN Activity and Effortful Control

Symposium 1-2Time:13:30 - 15:00

Sergey S. Tamozhnikov1
1Institute of Physiology and Basic Medicine, Novosibirsk, Russia,

This longitudinal study is aimed at exploration of resting-state EEGs in young schoolchildren. A connection between resting-state activity and children’s ability in self-control of behavior was analyzed. We acquired three yearly waves of resting state EEG data in 80 children between 7 and 9 years of age and in 55 adults. Children's parents filled out the Effortful Control (EC) scale. Seed-based oscillatory power envelope correlation in conjunction with beamformer spatial filtering was used to obtain electrophysiological signatures of the default mode network (DMN) and two task-positive networks (TPN). In line with existing fMRI evidence, both cross-sectional comparison with adults and longitudinal analysis showed that the general pattern of maturation consisted in an increase in long-distance connections with posterior cortical regions and a decrease in short connections within prefrontal cortical areas. Latent growth curve analysis showed that EC scores were predicted by a linear increase over time in DMN integrity in alpha band and an increase in the segregation between DMN and TPN in beta band. Our findings confirm the neural basis of those observed in fMRI studies on maturation-related changes and show that integrity of the DMN and sufficient level of segregation between DMN and TPN is a prerequisite for appropriate attentional and behavioral control. Acknowledgement: The study was supported by the grant № 17-06-00055А of the Russian Foundation of Basic Research and the grant № 16-18-00003 of the Russian Science Foundation. (Coauthored with G. G. Knyazev, A. N. Savostyanov, A. V. Bocharov, H. R. Slobodskaya, N. B. Bairova and V. V. Stepanova) Keywords: DMN, the Effortful Control scale, longitudinal study, resting-state EEGs.

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March 1, 2017

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May 20-22, 2017

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September 1-3, 2017