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Richer than we thought: neurophysiological methods reveal rich-club network development is frequency- and
Marlee M Vandewouw1,2,3, Elizabeth W Pang4,5, Meng-Chuan Lai4,6,7
1Autism Research Centre, Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON M4G 1R8, Canada.
Iscience
|April 3, 2023
Summary
Brain
Area of Science:
- Neuroscience
- Developmental Neuroscience
- Brain Connectomics
Background:
- The brain's
- Purpose_of_the_Study
Purpose of the Study:
- Investigate sex-specific, frequency-dependent developmental trajectories of the brain's rich-club organization.
- Clarify age-related changes in functional brain networks across different oscillatory frequencies.
- Establish neurophysiological underpinnings of sex differences in brain development.
Main Methods:
- Magnetoencephalography (MEG) data from 383 typically developing individuals (ages 4-39).
- Analysis of rich-club organization across alpha, beta, and gamma frequency bands.
- Examination of age and sex effects on functional brain connectivity.
Main Results:
- Significant sex differences in rich-club development observed across multiple frequency bands.
- Males exhibit increased or stable rich-club organization with age.
- Females display a non-linear developmental trajectory, increasing through childhood and shifting in adolescence.
Conclusions:
- Diverging, sex-specific developmental trajectories of the brain's core functional organization (rich-club) are established.
- Findings highlight the critical role of frequency and sex in shaping brain development.
- Provides crucial insights for understanding brain health and neurological disorders.
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