Course of the frequency domain measures during childhood and adolescence.
<p>HF – high frequency component, LF – low frequency component, VLF – very low frequency component, ULF – ultra low frequency component, ln ms<sup>2</sup> – natural logarithm of the absolute values in ms<sup>2</sup>, ln LF/HF - natural logarithm of the ratio LF/HF. The circles represent 24 h averages. Solid and dashed lines show moving average and the fitted polynomial model of order 3, respectively.</p
Medicine, Genetics, Physiology, Biological Sciences, Mathematics, measures
DOI identifier: 10.1371/journal.pone.0019400.g003
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