Maturation Trajectories of Cortical Resting-State Networks Depend on the Mediating Frequency Band
| Autor: | Tal Kenet, Lucia M. Vaina, Randy L. Gollub, Fahimeh Mamashli, Javeria A. Hashmi, Keri-Lee A. Garel, Konstantinos P. Michmizos, Yousra Bekhti, Manfred G. Kitzbichler, Matti Hämäläinen, Santosh Ganesan, Sheraz Khan, Steven M. Stufflebeam, Susan Whitfield-Gabrieli, Jian Kong, Hari M. Bharadwaj, Kunjan D. Rana |
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| Rok vydání: | 2018 |
| Předmět: |
0303 health sciences
medicine.diagnostic_test Resting state fMRI Frequency band Magnetoencephalography Biology 03 medical and health sciences Beta band 0302 clinical medicine Network integration medicine Functional significance Beta (finance) Neuroscience 030217 neurology & neurosurgery Cortical rhythms 030304 developmental biology |
| DOI: | 10.1101/264416 |
| Popis: | The functional significance of resting state networks and their abnormal manifestations in psychiatric disorders are firmly established, as is the importance of the cortical rhythms in mediating these networks. Resting state networks are known to undergo substantial reorganization from childhood to adulthood, but whether distinct cortical rhythms, which are generated by separable neural mechanisms and are often manifested abnormally in psychiatric conditions, mediate maturation differentially, remains unknown. Using magnetoencephalography (MEG) to map frequency band specific maturation of resting state networks from age 7 to 29 in 162 participants (31 independent), we found significant changes with age in networks mediated by the beta (13-30Hz) and gamma (31-80Hz) bands. More specifically, gamma band mediated networks followed an expected asymptotic trajectory, but beta band mediated networks followed a linear trajectory. Network integration increased with age in gamma band mediated networks, while local segregation increased with age in beta band mediated networks. Spatially, the hubs that changed in importance with age in the beta band mediated networks had relatively little overlap with those that showed the greatest changes in the gamma band mediated networks. These findings are relevant for our understanding of the neural mechanisms of cortical maturation, in both typical and atypical development. |
| Databáze: | OpenAIRE |
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