Beta band (15

<p>–<b>25 Hz) development of parameters C and L, average connectivity, and average power.</b> See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0036896#pone-0036896-g002" target="_blank">figure 2</a> for additional legend. (Left column:) Results are highly similar to alpha oscillatory networks, including a small-world organization throughout life and an opposite development of the power suggesting that increased order is not a spurious effect of increased signal-to-noise ratios. (Right column:) Bootstrap showed significant increases between childhood and adolescence and even within adolescence (for both C and L) indicate increased brain network order. A stable period for C and L after ∼18 yrs was observed. Overall connectivity significantly increased up to ∼40 but peaked at ∼50, and showed significant decrease into older age (55+).